To address the limited wear resistance observed in traditional titanium alloys, we have developed an ultrafine-grained equiatomic TiMoNb compositionally complex alloy (CCA) with exceptional wear resistance. However, there is a significant lack of in vitro and in vivo evaluation of the TiMoNb CCA for biomedical applications. In this study, we comprehensively evaluate the corrosion behavior, tribo-corrosion performance, biocompatibility, and osseointegration of the TiMoNb alloy. Our findings indicate that the alloy exhibits strong corrosion resistance and stable tribo-corrosion behavior, attributed to the presence of Ti-rich nanoscale precipitates that impede tribo-corrosion-induced shear deformation, along with a protective nanoscale oxide layer. Furthermore, in vitro and in vivo evaluations demonstrate the excellent biocompatibility of the TiMoNb alloy and reveal its ability to promote the regeneration of defective femurs and its favorable bone osseointegration capability. Overall, our study underscores the potential of the TiMoNb alloy as a promising material for dental implants and provides valuable insights into the tribo-corrosion mechanisms of ultrafine-grained alloys.
为了解决传统钛合金耐磨性有限的问题，我们开发了一种超细晶粒等原子钛钼铌成分复杂合金（CCA），具有优异的耐磨性。然而，目前对 TiMoNb CCA 在生物医学应用中的体外和体内评估还非常缺乏。在本研究中，我们全面评估了 TiMoNb 合金的腐蚀行为、三相腐蚀性能、生物相容性和骨结合性。我们的研究结果表明，该合金具有很强的耐腐蚀性和稳定的三腐蚀行为，这归功于富钛纳米级沉淀物的存在，它们与纳米级氧化物保护层一起阻碍了三腐蚀引起的剪切变形。此外，体外和体内评估证明了 TiMoNb 合金具有良好的生物相容性，并揭示了它促进缺损股骨再生的能力及其良好的骨结合能力。总之，我们的研究强调了 TiMoNb 合金作为牙科植入体材料的潜力，并为超细晶粒合金的三重腐蚀机制提供了宝贵的见解。
{"title":"Comprehensive evaluation of corrosion resistance and biocompatibility of ultrafine-grained TiMoNb alloy for dental implants","authors":"Zongyuan Li, Dingshan Liang, Chuanxin Zhong, Tian Wan, Weiwei Zhu, Jiasi Luo, Jianfeng Yan, Fuzeng Ren","doi":"10.1016/j.jmst.2024.09.030","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.030","url":null,"abstract":"To address the limited wear resistance observed in traditional titanium alloys, we have developed an ultrafine-grained equiatomic TiMoNb compositionally complex alloy (CCA) with exceptional wear resistance. However, there is a significant lack of <em>in vitro</em> and <em>in vivo</em> evaluation of the TiMoNb CCA for biomedical applications. In this study, we comprehensively evaluate the corrosion behavior, tribo-corrosion performance, biocompatibility, and osseointegration of the TiMoNb alloy. Our findings indicate that the alloy exhibits strong corrosion resistance and stable tribo-corrosion behavior, attributed to the presence of Ti-rich nanoscale precipitates that impede tribo-corrosion-induced shear deformation, along with a protective nanoscale oxide layer. Furthermore, <em>in vitro</em> and <em>in vivo</em> evaluations demonstrate the excellent biocompatibility of the TiMoNb alloy and reveal its ability to promote the regeneration of defective femurs and its favorable bone osseointegration capability. Overall, our study underscores the potential of the TiMoNb alloy as a promising material for dental implants and provides valuable insights into the tribo-corrosion mechanisms of ultrafine-grained alloys.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"10 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Producing steel requires large amounts of energy to convert iron ores into steel, which often comes from fossil fuels, leading to carbon emissions and other pollutants. Increasing scrap usage emerges as one of the most effective strategies for addressing these issues. However, typical residual elements (Cu, As, Sn, Sb, Bi, etc.) inherited from scrap could significantly influence the mechanical properties of steel. In this work, we investigate the effects of residual elements on the microstructure evolution and mechanical properties of a quenching and partitioning (Q&P) steel by comparing a commercial QP1180 steel (referred to as QP) to the one containing typical residual elements () (referred to as QP-R). The results demonstrate that in comparison with the QP steel, the residual elements significantly refine the prior austenite grain ( vs. ) due to their strong solute drag effect, leading to a higher volume fraction (13.0% vs. 11.8%), a smaller size (473 nm vs. 790 nm) and a higher average carbon content (1.26 wt% vs. 0.99 wt%) of retained austenite in the QP-R steel. As a result, the QP-R steel exhibits a sustained transformation-induced plasticity (TRIP) effect, leading to an enhanced strain hardening effect and a simultaneous improvement of strength and ductility. Grain boundary segregation of residual elements was not observed at prior austenite grain boundaries in the QP-R steel, primarily due to continuous interface migration during austenitization. This study demonstrates that the residual elements with concentrations comparable to that in scrap result in significant microstructural refinement, causing retained austenite with relatively higher stability and thus offering promising mechanical properties and potential applications.
{"title":"Effects of residual elements on the microstructure and mechanical properties of a Q&P steel","authors":"Qing Zhu, Junheng Gao, Haitao Zhao, Dikai Guan, Yunfei Zhang, Yuhe Huang, Shuai Li, Wei Yang, Kai Wang, Shuize Wang, Honghui Wu, Chaolei Zhang, Xinping Mao","doi":"10.1016/j.jmst.2024.09.031","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.031","url":null,"abstract":"Producing steel requires large amounts of energy to convert iron ores into steel, which often comes from fossil fuels, leading to carbon emissions and other pollutants. Increasing scrap usage emerges as one of the most effective strategies for addressing these issues. However, typical residual elements (Cu, As, Sn, Sb, Bi, etc.) inherited from scrap could significantly influence the mechanical properties of steel. In this work, we investigate the effects of residual elements on the microstructure evolution and mechanical properties of a quenching and partitioning (Q&P) steel by comparing a commercial QP1180 steel (referred to as QP) to the one containing typical residual elements (<span><math><mrow is=\"true\"><mtext is=\"true\">Cu</mtext><mo is=\"true\" linebreak=\"goodbreak\">+</mo><mtext is=\"true\">As</mtext><mo is=\"true\" linebreak=\"goodbreak\">+</mo><mtext is=\"true\">Sn</mtext><mo is=\"true\" linebreak=\"goodbreak\">+</mo><mtext is=\"true\">Sb</mtext><mo is=\"true\" linebreak=\"goodbreak\">+</mo><mtext is=\"true\">Bi</mtext><mo is=\"true\" linebreak=\"goodbreak\"><</mo><mn is=\"true\">0.3</mn><mspace is=\"true\" width=\"0.28em\"></mspace><mrow is=\"true\"><mtext is=\"true\">wt</mtext><mo is=\"true\">%</mo></mrow></mrow></math></span>) (referred to as QP-R). The results demonstrate that in comparison with the QP steel, the residual elements significantly refine the prior austenite grain (<span><math><mrow is=\"true\"><mn is=\"true\">9.7</mn><mspace is=\"true\" width=\"0.28em\"></mspace><mrow is=\"true\"><mi is=\"true\">μ</mi><mi is=\"true\" mathvariant=\"normal\">m</mi></mrow></mrow></math></span> vs. <span><math><mrow is=\"true\"><mn is=\"true\">14.6</mn><mspace is=\"true\" width=\"0.28em\"></mspace><mrow is=\"true\"><mi is=\"true\">μ</mi><mi is=\"true\" mathvariant=\"normal\">m</mi></mrow></mrow></math></span>) due to their strong solute drag effect, leading to a higher volume fraction (13.0% vs. 11.8%), a smaller size (473 nm vs. 790 nm) and a higher average carbon content (1.26 wt% vs. 0.99 wt%) of retained austenite in the QP-R steel. As a result, the QP-R steel exhibits a sustained transformation-induced plasticity (TRIP) effect, leading to an enhanced strain hardening effect and a simultaneous improvement of strength and ductility. Grain boundary segregation of residual elements was not observed at prior austenite grain boundaries in the QP-R steel, primarily due to continuous interface migration during austenitization. This study demonstrates that the residual elements with concentrations comparable to that in scrap result in significant microstructural refinement, causing retained austenite with relatively higher stability and thus offering promising mechanical properties and potential applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"193 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.jmst.2024.09.034
Peng Wang, Haohang Yuan, Baoluo He, Ruisheng Guo, Shujuan Liu, Qian Ye, Feng Zhou, Weimin Liu
The potential of organic coatings in antifouling applications has been well-documented. Beyond their exceptional antifouling effects, these coatings should also possess good mechanical strength and self-healing capabilities. Herein, a novel vinyl-based ionic liquid [VEMIM+] [Cl–] (IL) was in situ polymerized and then assembled onto the surface of liquid metal (GLM) nanodroplets to prepare GLM-IL. Subsequently, Ti3C2Tx (MXene) was modified with GLM-IL nanodroplets to obtain GLM-IL/MXene composite, which acts as an efficient photon captor and photothermal converters and can be further composited with PU film (GLM-IL/MXene/PU). Notably, the composite film significantly increases by ∼117°C after exposure to 200 mW/cm2 light irradiation. This increase is attributed to the high photothermal conversion efficiency of MXene and the excellent plasma effect of GLM-IL. Compared with pure PU, the GLM-IL/MXene/PU film shows a 50% improvement in tensile strength and above 85.8% healing efficiency with a local temperature increase. Additionally, the as-prepared GLM-IL/MXene/PU film reveals satisfactory antifouling properties, achieving a 99.7% reduction in bacterial presence and an 80.3% reduction in microalgae. This work introduces a novel coating with antifouling and self-healing properties, offering a wide range of applications in the fields of marine antifouling and biomedicine.
{"title":"NIR-light-induced plasmonic liquid metal/ionic liquid/MXene polyurethane films with excellent antifouling and self-healing capabilities","authors":"Peng Wang, Haohang Yuan, Baoluo He, Ruisheng Guo, Shujuan Liu, Qian Ye, Feng Zhou, Weimin Liu","doi":"10.1016/j.jmst.2024.09.034","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.034","url":null,"abstract":"The potential of organic coatings in antifouling applications has been well-documented. Beyond their exceptional antifouling effects, these coatings should also possess good mechanical strength and self-healing capabilities. Herein, a novel vinyl-based ionic liquid [VEMIM<sup>+</sup>] [Cl<sup>–</sup>] (IL) was in situ polymerized and then assembled onto the surface of liquid metal (GLM) nanodroplets to prepare GLM-IL. Subsequently, Ti<sub>3</sub>C<sub>2</sub>T<em><sub>x</sub></em> (MXene) was modified with GLM-IL nanodroplets to obtain GLM-IL/MXene composite, which acts as an efficient photon captor and photothermal converters and can be further composited with PU film (GLM-IL/MXene/PU). Notably, the composite film significantly increases by ∼117°C after exposure to 200 mW/cm<sup>2</sup> light irradiation. This increase is attributed to the high photothermal conversion efficiency of MXene and the excellent plasma effect of GLM-IL. Compared with pure PU, the GLM-IL/MXene/PU film shows a 50% improvement in tensile strength and above 85.8% healing efficiency with a local temperature increase. Additionally, the as-prepared GLM-IL/MXene/PU film reveals satisfactory antifouling properties, achieving a 99.7% reduction in bacterial presence and an 80.3% reduction in microalgae. This work introduces a novel coating with antifouling and self-healing properties, offering a wide range of applications in the fields of marine antifouling and biomedicine.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"72 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.jmst.2024.04.088
Yuwen Hu, Ruijian Zhu, Dazhi Zheng, Shiou Liang, Zengmei Wang
Particulate matter (PM) from high-temperature emissions like chemical plants, coal stoves and vehicle exhausts poses a gravel challenge to human health. To address this issue, researchers have explored various fiber filters, yet the bulk struggle to withstand high temperatures. In this study, mullite fiber sponges were developed utilizing low-cost materials and Kármán vortex solution blow spinning, using surfactants to improve the spinnability of the sol. Optimized sponges demonstrate ultralight (19 mg cm−3), temperature-resistant reversible compressibility (50% strain) and a water contact angle of 135°. These sponges exhibited exceptional thermal insulation (thermal conductivity: 0.0256 W m−1 K−1) and performed well in high-temperature air filtration. At 800 °C, the mullite sponge with a base weight of 35 mg cm−2, achieved an average filtration efficiency of 98.18 % and 99.57 % for PM2.5 and PM2.5−10, respectively, with a quality value of 0.98 Pa-1 at a wind speed of 4 cm s−1. This low-cost mullite fiber sponge offers a promising avenue for designing high-performance filtration materials.
来自化工厂、煤炉和汽车尾气等高温排放物的微粒物质（PM）对人类健康构成了严峻的挑战。为解决这一问题，研究人员探索了各种纤维过滤器，但大部分都难以承受高温。在这项研究中，利用低成本材料和卡尔曼涡流溶液喷气纺丝技术开发了莫来石纤维海绵，并使用表面活性剂提高了溶胶的可纺性。优化后的海绵重量超轻（19 毫克/厘米-3），耐温可逆压缩（50% 应变），水接触角 135°。这些海绵具有优异的隔热性能（导热系数：0.0256 W m-1 K-1），在高温空气过滤方面表现出色。在 800 °C 时，基重为 35 mg cm-2 的莫来石海绵对 PM2.5 和 PM2.5-10 的平均过滤效率分别达到 98.18 % 和 99.57 %，风速为 4 cm s-1 时的质量值为 0.98 Pa-1。这种低成本莫来石纤维海绵为设计高性能过滤材料提供了一条前景广阔的途径。
{"title":"High-throughput production of low-cost hydrophobic and oleophilic mullite fiber sponges for high-temperature PM filtration","authors":"Yuwen Hu, Ruijian Zhu, Dazhi Zheng, Shiou Liang, Zengmei Wang","doi":"10.1016/j.jmst.2024.04.088","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.04.088","url":null,"abstract":"Particulate matter (PM) from high-temperature emissions like chemical plants, coal stoves and vehicle exhausts poses a gravel challenge to human health. To address this issue, researchers have explored various fiber filters, yet the bulk struggle to withstand high temperatures. In this study, mullite fiber sponges were developed utilizing low-cost materials and Kármán vortex solution blow spinning, using surfactants to improve the spinnability of the sol. Optimized sponges demonstrate ultralight (19 mg cm<sup>−3</sup>), temperature-resistant reversible compressibility (50% strain) and a water contact angle of 135°. These sponges exhibited exceptional thermal insulation (thermal conductivity: 0.0256 W m<sup>−1</sup> K<sup>−1</sup>) and performed well in high-temperature air filtration. At 800 °C, the mullite sponge with a base weight of 35 mg cm<sup>−2</sup>, achieved an average filtration efficiency of 98.18 % and 99.57 % for PM<sub>2.5</sub> and PM<sub>2.5−10</sub>, respectively, with a quality value of 0.98 Pa<sup>-1</sup> at a wind speed of 4 cm s<sup>−1</sup>. This low-cost mullite fiber sponge offers a promising avenue for designing high-performance filtration materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"7 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.jmst.2024.08.068
Wanfeng Li, Kaixuan Wang, Weihua Li
Constructing a photoanode with both high dark-state protection performance and high stability remains a top priority for photoelectrochemical cathodic protection technology, especially in a marine environment (dark-state or rainy conditions) without hole scavenging agents. In this work, we developed a class of energy-storage quasi-planar heterojunctions (WO3-Nb2O5-ZnIn2S4) with directional paths (low onset potential and well-matched energy band) and embedded morphology. The co-design of embedded and directional paths reduces the carrier transport energy barrier at the composite interface, and increases the interface contact area, thereby achieving highly stable and sensitive dark-state energy storage and photoelectrochemical cathodic protection performance in 3.5 wt.% NaCl solution without hole scavenging agent (Dark-state energy storage efficiency increased by 43%. For carbon steel, the performance retention rate is 99.6% after 500 cycles, the performance retention rate is 89% after 5000 s).
{"title":"Assembly of WO3-Nb2O5-ZnIn2S4 with embedded quasi-planar heterojunction characteristics and its efficient and stable dark-state photoelectrochemical cathodic protection performance","authors":"Wanfeng Li, Kaixuan Wang, Weihua Li","doi":"10.1016/j.jmst.2024.08.068","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.08.068","url":null,"abstract":"Constructing a photoanode with both high dark-state protection performance and high stability remains a top priority for photoelectrochemical cathodic protection technology, especially in a marine environment (dark-state or rainy conditions) without hole scavenging agents. In this work, we developed a class of energy-storage quasi-planar heterojunctions (WO<sub>3</sub>-Nb<sub>2</sub>O<sub>5</sub>-ZnIn<sub>2</sub>S<sub>4</sub>) with directional paths (low onset potential and well-matched energy band) and embedded morphology. The co-design of embedded and directional paths reduces the carrier transport energy barrier at the composite interface, and increases the interface contact area, thereby achieving highly stable and sensitive dark-state energy storage and photoelectrochemical cathodic protection performance in 3.5 wt.% NaCl solution without hole scavenging agent (Dark-state energy storage efficiency increased by 43%. For carbon steel, the performance retention rate is 99.6% after 500 cycles, the performance retention rate is 89% after 5000 s).","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"1 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.jmst.2024.09.032
Qiwen Su, Lei Chen, Lichang Yin, Jingxiang Zhao
The electrochemical reduction of carbon monoxide (COER) to high−value multicarbon (C2+) products is an emerging strategy for artificial carbon fixation and renewable energy storage. However, the slow kinetics of the C—C coupling reaction remains a significant obstacle in achieving both high activity and selectivity for C2+ production. In this study, we demonstrated the use of defect engineering to promote COER towards C2+ products by introducing single chlorine vacancy (SVCl) into two−dimensional (2D) non−noble transition metal dichlorides (TMCl2). Density functional theory (DFT) calculations revealed that SVCl in TMCl2 exhibits low formation energies and high stability, ensuring its feasibility for synthesis and application in electrocatalysis. The introduction of three−coordinated, unsaturated metal sites substantially enhances the catalytic activity of TMCl2, facilitating effective CO activation. Notably, SVCl−engineered CoCl2 and NiCl2 nanosheets exhibit superior performance in COER, with SVCl@CoCl2 showing catalytic activity for ethanol and propanol production, and SVCl@NiCl2 favoring ethanol production due to a lower limiting potential and smaller kinetic barrier for C—C coupling. Consequently, defective 2D TMCl2 nanosheets represent a highly promising platform for converting CO into value−added C2+ products, warranting further experimental investigation into defect engineering for CO conversion.
{"title":"Chlorine vacancy−induced activation in two−dimensional transition metal dichlorides nanosheets for efficient CO electroreduction to C2+ products","authors":"Qiwen Su, Lei Chen, Lichang Yin, Jingxiang Zhao","doi":"10.1016/j.jmst.2024.09.032","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.032","url":null,"abstract":"The electrochemical reduction of carbon monoxide (COER) to high−value multicarbon (C<sub>2+</sub>) products is an emerging strategy for artificial carbon fixation and renewable energy storage. However, the slow kinetics of the C—C coupling reaction remains a significant obstacle in achieving both high activity and selectivity for C<sub>2+</sub> production. In this study, we demonstrated the use of defect engineering to promote COER towards C<sub>2+</sub> products by introducing single chlorine vacancy (SV<sub>Cl</sub>) into two−dimensional (2D) non−noble transition metal dichlorides (TMCl<sub>2</sub>). Density functional theory (DFT) calculations revealed that SV<sub>Cl</sub> in TMCl<sub>2</sub> exhibits low formation energies and high stability, ensuring its feasibility for synthesis and application in electrocatalysis. The introduction of three−coordinated, unsaturated metal sites substantially enhances the catalytic activity of TMCl<sub>2</sub>, facilitating effective CO activation. Notably, SV<sub>Cl</sub>−engineered CoCl<sub>2</sub> and NiCl<sub>2</sub> nanosheets exhibit superior performance in COER, with SV<sub>Cl</sub>@CoCl<sub>2</sub> showing catalytic activity for ethanol and propanol production, and SV<sub>Cl</sub>@NiCl<sub>2</sub> favoring ethanol production due to a lower limiting potential and smaller kinetic barrier for C—C coupling. Consequently, defective 2D TMCl<sub>2</sub> nanosheets represent a highly promising platform for converting CO into value−added C<sub>2+</sub> products, warranting further experimental investigation into defect engineering for CO conversion.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"59 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.jmst.2024.09.033
Shen Tao, Yansong Li, Hui Peng, Hongbo Guo, Bo Chen
This paper reports the use of integrated computational alloy design, coupled with a rapid printability screening method, to downselect from a total of 70000 datasets in design space to five candidates in the first step, and then from five to one in the second step. The new Ni-base superalloy with compositions of Ni-5.03Al-2.69Co-5.63Cr-0.04Hf-1.91Mo-2.36Re-3.32Ta-0.57Ti-8.46W-0.05C-0.019B exhibits an optimal balance of density (8.82 g/cm<sup>2</sup>), printability (freezing range of 107 °C), thermal stability (γ′-volume fraction of 50.7% at 980 °C and low <span><span style=""></span><span data-mathml='<math xmlns="http://www.w3.org/1998/Math/MathML"><mover is="true"><mrow is="true"><msub is="true"><mi is="true">M</mi><mi mathvariant="normal" is="true">d</mi></msub></mrow><mo stretchy="true" is="true">‾</mo></mover></math>' role="presentation" style="font-size: 90%; display: inline-block; position: relative;" tabindex="0"><svg aria-hidden="true" focusable="false" height="2.663ex" role="img" style="vertical-align: -0.582ex;" viewbox="0 -896.2 1534 1146.6" width="3.563ex" xmlns:xlink="http://www.w3.org/1999/xlink"><g fill="currentColor" stroke="currentColor" stroke-width="0" transform="matrix(1 0 0 -1 0 0)"><g is="true"><g is="true" transform="translate(35,0)"><g is="true"><g is="true"><use xlink:href="#MJMATHI-4D"></use></g><g is="true" transform="translate(970,-150)"><use transform="scale(0.707)" xlink:href="#MJMAIN-64"></use></g></g></g><g is="true" transform="translate(0,216)"><use x="-70" xlink:href="#MJMAIN-AF" y="0"></use><g transform="translate(218.14863656715568,0) scale(2.0554153011920047,1)"><use xlink:href="#MJMAIN-AF"></use></g><use x="1033" xlink:href="#MJMAIN-AF" y="0"></use></g></g></g></svg><span role="presentation"><math xmlns="http://www.w3.org/1998/Math/MathML"><mover is="true"><mrow is="true"><msub is="true"><mi is="true">M</mi><mi is="true" mathvariant="normal">d</mi></msub></mrow><mo is="true" stretchy="true">‾</mo></mover></math></span></span><script type="math/mml"><math><mover is="true"><mrow is="true"><msub is="true"><mi is="true">M</mi><mi mathvariant="normal" is="true">d</mi></msub></mrow><mo stretchy="true" is="true">‾</mo></mover></math></script></span> value) and creep (rupture time of 612 h at 980 °C/120 MPa). The micro-hardness varies mildly from 417.2 ± 18.5 to 434.7 ± 14.6 HV, suggesting good phase stability. This is substantiated by microstructure observations, which revealed the absence of a topologically close-packed phase. Machine-learning tools of the artificial neural network (ANN), random forest, and support vector regression, respectively, were used to predict creep rupture time. The ANN algorithm achieves the highest accuracy in predicting creep life. By recognising the “black box” nature of the ANN, interpretability analysis was conducted using the local interpretable model-agnostic method. The analysis support
{"title":"Multi-objective optimisation and verification of creep-resistant Ni-base superalloy for electron-beam powder-bed-fusion","authors":"Shen Tao, Yansong Li, Hui Peng, Hongbo Guo, Bo Chen","doi":"10.1016/j.jmst.2024.09.033","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.033","url":null,"abstract":"This paper reports the use of integrated computational alloy design, coupled with a rapid printability screening method, to downselect from a total of 70000 datasets in design space to five candidates in the first step, and then from five to one in the second step. The new Ni-base superalloy with compositions of Ni-5.03Al-2.69Co-5.63Cr-0.04Hf-1.91Mo-2.36Re-3.32Ta-0.57Ti-8.46W-0.05C-0.019B exhibits an optimal balance of density (8.82 g/cm<sup>2</sup>), printability (freezing range of 107 °C), thermal stability (γ′-volume fraction of 50.7% at 980 °C and low <span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover is=\"true\"><mrow is=\"true\"><msub is=\"true\"><mi is=\"true\">M</mi><mi mathvariant=\"normal\" is=\"true\">d</mi></msub></mrow><mo stretchy=\"true\" is=\"true\">&#x203E;</mo></mover></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.663ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -896.2 1534 1146.6\" width=\"3.563ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\" transform=\"translate(35,0)\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMATHI-4D\"></use></g><g is=\"true\" transform=\"translate(970,-150)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-64\"></use></g></g></g><g is=\"true\" transform=\"translate(0,216)\"><use x=\"-70\" xlink:href=\"#MJMAIN-AF\" y=\"0\"></use><g transform=\"translate(218.14863656715568,0) scale(2.0554153011920047,1)\"><use xlink:href=\"#MJMAIN-AF\"></use></g><use x=\"1033\" xlink:href=\"#MJMAIN-AF\" y=\"0\"></use></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mover is=\"true\"><mrow is=\"true\"><msub is=\"true\"><mi is=\"true\">M</mi><mi is=\"true\" mathvariant=\"normal\">d</mi></msub></mrow><mo is=\"true\" stretchy=\"true\">‾</mo></mover></math></span></span><script type=\"math/mml\"><math><mover is=\"true\"><mrow is=\"true\"><msub is=\"true\"><mi is=\"true\">M</mi><mi mathvariant=\"normal\" is=\"true\">d</mi></msub></mrow><mo stretchy=\"true\" is=\"true\">‾</mo></mover></math></script></span> value) and creep (rupture time of 612 h at 980 °C/120 MPa). The micro-hardness varies mildly from 417.2 ± 18.5 to 434.7 ± 14.6 HV, suggesting good phase stability. This is substantiated by microstructure observations, which revealed the absence of a topologically close-packed phase. Machine-learning tools of the artificial neural network (ANN), random forest, and support vector regression, respectively, were used to predict creep rupture time. The ANN algorithm achieves the highest accuracy in predicting creep life. By recognising the “black box” nature of the ANN, interpretability analysis was conducted using the local interpretable model-agnostic method. The analysis support","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"208 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.jmst.2024.08.066
Chris Nellis, Céline Hin
While developing nuclear materials, predicting their behavior under long-term irradiation regimes spanning decades poses a significant challenge. We developed a novel Kinetic Monte Carlo (KMC) model to explore the precipitation behavior of Y-Ti-O oxides along grain boundaries within nanostructured ferritic alloys (NFA). This model also assessed the response of the oxides to neutron irradiation, even up simulated radiation damage levels in the desired long dpa range for reactor components. Our simulations investigated how temperature and grain boundary sinks influenced the oxide characteristics of a 12YWT-like alloy during heat treatments at 1023, 1123, and 1223 K. The oxide characteristics observed in our simulations were in good agreement with existing literature. Furthermore, the impact of grain boundaries on precipitation was found to be minimal. The resulting oxide configurations and positions were used in subsequent simulations that exposed them to simulated neutron irradiation to a total accumulated dose of 8 dpa at three temperatures: 673, 773, and 873 K, and at dose rates of <span><span><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">3</mn></mrow></msup></math></span><script type="math/mml"><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">3</mn></mrow></msup></math></script></span>, <span><span><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">4</mn></mrow></msup></math></span><script type="math/mml"><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">4</mn></mrow></msup></math></script></span>, and <span><span><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">5</mn></mrow></msup></math></span><script type="math/mml"><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">5</mn></mrow></msup></math></script></span> dpa/s. This demonstrated the expected inverse relationship between oxide size and dose rate. In a long-term irradiation simulation at 873 K and <span><span><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">3</mn></mrow></msup></math></span><script type="math/mml"><math><msup is="true"><mrow is="true"><mn is="true">10</mn></mrow><mrow is="true"><mo is="true">−</mo><mn is="true">3</mn></mrow></msup></math></script></span> dpa/s was taken out to 66 dpa and found the oxides in the vicinity of the grain boundary were more susceptible to dissolution. Additionally, we conducted irradiation simulations of a 14YWT-like alloy to reproduce findings from neutron irradiation experiments. The larger oxides in the 14YWT-like alloy did not dissolve and displayed stability similar to the experime
{"title":"Kinetic Monte Carlo modelling of nano-oxide precipitation and its associated stability under neutron irradiation for the Fe-Ti-Y-O system","authors":"Chris Nellis, Céline Hin","doi":"10.1016/j.jmst.2024.08.066","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.08.066","url":null,"abstract":"While developing nuclear materials, predicting their behavior under long-term irradiation regimes spanning decades poses a significant challenge. We developed a novel Kinetic Monte Carlo (KMC) model to explore the precipitation behavior of Y-Ti-O oxides along grain boundaries within nanostructured ferritic alloys (NFA). This model also assessed the response of the oxides to neutron irradiation, even up simulated radiation damage levels in the desired long dpa range for reactor components. Our simulations investigated how temperature and grain boundary sinks influenced the oxide characteristics of a 12YWT-like alloy during heat treatments at 1023, 1123, and 1223 K. The oxide characteristics observed in our simulations were in good agreement with existing literature. Furthermore, the impact of grain boundaries on precipitation was found to be minimal. The resulting oxide configurations and positions were used in subsequent simulations that exposed them to simulated neutron irradiation to a total accumulated dose of 8 dpa at three temperatures: 673, 773, and 873 K, and at dose rates of <span><span><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">3</mn></mrow></msup></math></span><script type=\"math/mml\"><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">3</mn></mrow></msup></math></script></span>, <span><span><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">4</mn></mrow></msup></math></span><script type=\"math/mml\"><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">4</mn></mrow></msup></math></script></span>, and <span><span><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">5</mn></mrow></msup></math></span><script type=\"math/mml\"><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">5</mn></mrow></msup></math></script></span> dpa/s. This demonstrated the expected inverse relationship between oxide size and dose rate. In a long-term irradiation simulation at 873 K and <span><span><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">3</mn></mrow></msup></math></span><script type=\"math/mml\"><math><msup is=\"true\"><mrow is=\"true\"><mn is=\"true\">10</mn></mrow><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">3</mn></mrow></msup></math></script></span> dpa/s was taken out to 66 dpa and found the oxides in the vicinity of the grain boundary were more susceptible to dissolution. Additionally, we conducted irradiation simulations of a 14YWT-like alloy to reproduce findings from neutron irradiation experiments. The larger oxides in the 14YWT-like alloy did not dissolve and displayed stability similar to the experime","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"55 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-12DOI: 10.1016/j.jmst.2024.09.029
Feng Wang, Mengdi Liang, Bei Zhang, Weiqiang Li, Xianchen Huang, Xicheng Zhang, Kaili Chen, Gang Li
Cardiovascular disease (CVD) is a major global health challenge, which causes significant illness and death worldwide. These include a range of conditions that affect the heart and blood vessels, including coronary artery disease, stroke, peripheral artery disease, and heart failure. Despite advances in medicine and healthcare delivery, CVD continues to have a serious impact on individuals, families, and the healthcare system. This review begins by delineating the merits and demerits of commonly employed synthetic and natural materials for artificial blood vessels. It delves into various techniques commonly employed in the fabrication of artificial blood vessels, encompassing traditional textile technologies, electrospinning, thermally induced phase separation, and 3D printing. The review critically analyzes the attributes of different preparation methodologies alongside the latest advancements in research. The review also outlines the requisite performance requirements for artificial blood vessels, which encompass robust mechanical properties, appropriate porosity, exceptional compatibility, and antibacterial attributes. It provides a succinct overview of ongoing efforts in vascular functionalization, particularly emphasizing thrombus mitigation, promotion of endothelialization, and enhancement of nitric oxide production. The review finally encapsulates the primary challenges confronting vascular grafts and prospective avenues for future research.
{"title":"Advancements in artificial blood vessel development: Exploring materials, preparation, and functionality","authors":"Feng Wang, Mengdi Liang, Bei Zhang, Weiqiang Li, Xianchen Huang, Xicheng Zhang, Kaili Chen, Gang Li","doi":"10.1016/j.jmst.2024.09.029","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.029","url":null,"abstract":"Cardiovascular disease (CVD) is a major global health challenge, which causes significant illness and death worldwide. These include a range of conditions that affect the heart and blood vessels, including coronary artery disease, stroke, peripheral artery disease, and heart failure. Despite advances in medicine and healthcare delivery, CVD continues to have a serious impact on individuals, families, and the healthcare system. This review begins by delineating the merits and demerits of commonly employed synthetic and natural materials for artificial blood vessels. It delves into various techniques commonly employed in the fabrication of artificial blood vessels, encompassing traditional textile technologies, electrospinning, thermally induced phase separation, and 3D printing. The review critically analyzes the attributes of different preparation methodologies alongside the latest advancements in research. The review also outlines the requisite performance requirements for artificial blood vessels, which encompass robust mechanical properties, appropriate porosity, exceptional compatibility, and antibacterial attributes. It provides a succinct overview of ongoing efforts in vascular functionalization, particularly emphasizing thrombus mitigation, promotion of endothelialization, and enhancement of nitric oxide production. The review finally encapsulates the primary challenges confronting vascular grafts and prospective avenues for future research.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"123 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-10DOI: 10.1016/j.jmst.2024.09.028
Yangbing Chen, Ran Ji, Peiwen Wang, Xuan Chen, Huiming Ye, Jingrui Zhuang, Guoxiu Tong, Liyan Xie, Zhengquan Li, Wenhua Wu
To address the severe electromagnetic (EM) pollution and thermal exhaustion issues in modern electronics, C@MnxOy foams were first reported as an advanced multifunctional filler with superior microwave absorption, Radar wave stealth, and thermal dissipation. They were synthesized using a simple one-step annealing route, in which PVP and in-situ generated gas bubbles play a crucial role in the foam formation. Our results show that the C@MnxOy foams possess excellent electrical insulation and a large thermal conductivity of 3.58 W (m K)–1 at a low load of 5 wt.%. Also, they exhibit prominent microwave absorption capabilities (MWACs) with a strong absorption (–46.03 dB) and a wide bandwidth (11.04 GHz) in a low load (30 wt.%). When they are then used as a patch, the wideband Radar cross-section can be effectively reduced by up to 41.34 dB m2. This performance outperforms most other heterostructures. Furthermore, the mechanism of dielectric loss and thermal transfer at the atomic level is revealed by the First-principle calculations of the density of states (DOS) and the phonon density of states (PDOS). The combination of C, MnO, and Mn3O4 disrupts local microstructure symmetry and induces extra electrical dipoles at the heterointerfaces, benefiting the enhanced MWACs of C@MnxOy foams along with defect polarization and multiple scattering. Their enhanced TC could be credited to the co-transmission of low phonon-boundary/phonon-defect scattering and multiple-frequency phonons from C, MnO, and Mn3O4. Overall, the C@MnxOy foams are highly promising for application in EM protection, absorption, and thermal management. What is more, this study provides a theoretical guide for designing heterostructures as effective microwave absorbing and thermally conductive materials used in modern electronics.
{"title":"Electrically insulated C@MnxOy foams with engineered defects and heterointerfaces toward superior microwave absorption, Radar wave stealth, and thermal dissipation","authors":"Yangbing Chen, Ran Ji, Peiwen Wang, Xuan Chen, Huiming Ye, Jingrui Zhuang, Guoxiu Tong, Liyan Xie, Zhengquan Li, Wenhua Wu","doi":"10.1016/j.jmst.2024.09.028","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.09.028","url":null,"abstract":"To address the severe electromagnetic (EM) pollution and thermal exhaustion issues in modern electronics, C@Mn<em><sub>x</sub></em>O<em><sub>y</sub></em> foams were first reported as an advanced multifunctional filler with superior microwave absorption, Radar wave stealth, and thermal dissipation. They were synthesized using a simple one-step annealing route, in which PVP and in-situ generated gas bubbles play a crucial role in the foam formation. Our results show that the C@Mn<em><sub>x</sub></em>O<em><sub>y</sub></em> foams possess excellent electrical insulation and a large thermal conductivity of 3.58 W (m K)<sup>–1</sup> at a low load of 5 wt.%. Also, they exhibit prominent microwave absorption capabilities (MWACs) with a strong absorption (–46.03 dB) and a wide bandwidth (11.04 GHz) in a low load (30 wt.%). When they are then used as a patch, the wideband Radar cross-section can be effectively reduced by up to 41.34 dB m<sup>2</sup>. This performance outperforms most other heterostructures. Furthermore, the mechanism of dielectric loss and thermal transfer at the atomic level is revealed by the First-principle calculations of the density of states (DOS) and the phonon density of states (PDOS). The combination of C, MnO, and Mn<sub>3</sub>O<sub>4</sub> disrupts local microstructure symmetry and induces extra electrical dipoles at the heterointerfaces, benefiting the enhanced MWACs of C@Mn<em><sub>x</sub></em>O<em><sub>y</sub></em> foams along with defect polarization and multiple scattering. Their enhanced TC could be credited to the co-transmission of low phonon-boundary/phonon-defect scattering and multiple-frequency phonons from C, MnO, and Mn<sub>3</sub>O<sub>4</sub>. Overall, the C@Mn<em><sub>x</sub></em>O<em><sub>y</sub></em> foams are highly promising for application in EM protection, absorption, and thermal management. What is more, this study provides a theoretical guide for designing heterostructures as effective microwave absorbing and thermally conductive materials used in modern electronics.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"53 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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