Pub Date : 2023-12-12DOI: 10.1080/21663831.2023.2292076
Dayong An, Yao Xiao, Xinxi Liu, Huan Zhao, Xifeng Li, Jun Chen
Micro-laser beam powder-bed-fusion (µL-PBF) technique offers the capability to fabricate metallic components with enhanced surface quality and geometrical accuracy through refinement of processing ...
{"title":"Formation of two distinct cellular structures in 316L stainless steel fabricated by micro-laser beam powder-bed-fusion","authors":"Dayong An, Yao Xiao, Xinxi Liu, Huan Zhao, Xifeng Li, Jun Chen","doi":"10.1080/21663831.2023.2292076","DOIUrl":"https://doi.org/10.1080/21663831.2023.2292076","url":null,"abstract":"Micro-laser beam powder-bed-fusion (µL-PBF) technique offers the capability to fabricate metallic components with enhanced surface quality and geometrical accuracy through refinement of processing ...","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"37 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138685316","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 : 2023-12-03DOI: 10.1080/21663831.2023.2287072
Nicole L. Church, Ayush Prasad, Christian E.P. Talbot, Oliver G. Reed, Nicholas G. Jones
Infection is the leading cause of biomedical implant failure, making the incorporation of antibacterial elements highly desirable. However, new alloys must also possess a low elastic modulus, to pr...A novel alloy from the Ti-Nb-Au system with an exceptionally low stiffness, high strain recoverability and potential for antibacterial properties is reported. This offers extraordinary potential fo...
{"title":"Development of a novel Ti-Nb-Au superelastic alloy with exceptionally low elastic modulus","authors":"Nicole L. Church, Ayush Prasad, Christian E.P. Talbot, Oliver G. Reed, Nicholas G. Jones","doi":"10.1080/21663831.2023.2287072","DOIUrl":"https://doi.org/10.1080/21663831.2023.2287072","url":null,"abstract":"Infection is the leading cause of biomedical implant failure, making the incorporation of antibacterial elements highly desirable. However, new alloys must also possess a low elastic modulus, to pr...A novel alloy from the Ti-Nb-Au system with an exceptionally low stiffness, high strain recoverability and potential for antibacterial properties is reported. This offers extraordinary potential fo...","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"182 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2023-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528310","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}
We report a cast light-weight dual-phase eutectic high-entropy alloy (EHEA) of Ni49Fe28Al17V6 that comprises of alternating FCC and ordered B2 lamellae. Such lamellar EHEA exhibits a superior tensi...A novel cast Ni49Fe28Al17V6 eutectic high-entropy alloy comprised of FCC and B2 nanolamellae exhibits a remarkable combination of tensile strength and uniform elongation, well surpassing those of o...
{"title":"Lightweight Co-free eutectic high-entropy alloy with high strength and ductility by casting","authors":"Shuai Feng, Shuai Guan, Xiangkui Liu, Siyuan Peng, Kewei Dong, Yang Yang, Xinsheng Chen, Yuzheng Liang, Qipeng Wang, Yanfang Liu, Yong Peng, Kehong Wang, Wen Chen, Jian Kong","doi":"10.1080/21663831.2023.2284328","DOIUrl":"https://doi.org/10.1080/21663831.2023.2284328","url":null,"abstract":"We report a cast light-weight dual-phase eutectic high-entropy alloy (EHEA) of Ni49Fe28Al17V6 that comprises of alternating FCC and ordered B2 lamellae. Such lamellar EHEA exhibits a superior tensi...A novel cast Ni49Fe28Al17V6 eutectic high-entropy alloy comprised of FCC and B2 nanolamellae exhibits a remarkable combination of tensile strength and uniform elongation, well surpassing those of o...","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"40 11 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528308","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 : 2023-11-27DOI: 10.1080/21663831.2023.2285388
Yang Qi, Hu Zhang, Xu Yang, Yilong Wang, Changjun Han, Wei Fan, Jiawei Liang, Haihong Zhu
Traditional aluminum alloys are unsuitable for structural use above 200 ℃ due to precipitate coarsening or dissolution. Laser powder bed fusion (LPBF) additive manufacturing technique enables fabri...This study elucidates superior high-temperature mechanical properties and nano-scale microstructural stability of LPBF-fabricated Al-Cu-Li-Sc-Zr alloy, offering valuable insights into grain boundar...
{"title":"Achieving superior high-temperature mechanical properties in Al-Cu-Li-Sc-Zr alloy with nano-scale microstructure via laser additive manufacturing","authors":"Yang Qi, Hu Zhang, Xu Yang, Yilong Wang, Changjun Han, Wei Fan, Jiawei Liang, Haihong Zhu","doi":"10.1080/21663831.2023.2285388","DOIUrl":"https://doi.org/10.1080/21663831.2023.2285388","url":null,"abstract":"Traditional aluminum alloys are unsuitable for structural use above 200 ℃ due to precipitate coarsening or dissolution. Laser powder bed fusion (LPBF) additive manufacturing technique enables fabri...This study elucidates superior high-temperature mechanical properties and nano-scale microstructural stability of LPBF-fabricated Al-Cu-Li-Sc-Zr alloy, offering valuable insights into grain boundar...","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"13 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528321","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}
The precipitation of grain boundary (GB) κ-carbides critically influences the damage-tolerance ability of high-Mn high-Al lightweight steels, particularly in harsh environments (cryogenic and H env...We originally report that grain boundary κ-carbides can result from spinodal decomposition rather than conventional heterogeneous nucleation and refute the possibility of avoiding their precipitati...
{"title":"On the formation and growth of grain boundary κ-carbides in austenitic high-Mn lightweight steels","authors":"Mohamed N. Elkot, Binhan Sun, Xuyang Zhou, Dirk Ponge, Dierk Raabe","doi":"10.1080/21663831.2023.2284321","DOIUrl":"https://doi.org/10.1080/21663831.2023.2284321","url":null,"abstract":"The precipitation of grain boundary (GB) κ-carbides critically influences the damage-tolerance ability of high-Mn high-Al lightweight steels, particularly in harsh environments (cryogenic and H env...We originally report that grain boundary κ-carbides can result from spinodal decomposition rather than conventional heterogeneous nucleation and refute the possibility of avoiding their precipitati...","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"81 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528309","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}
In this study, we investigate the influence of dislocation strengthening in the metastable parent phase on the deformation-induced martensitic transformation behavior of a face-centered cubic (fcc)...This paper firstly uncovers the role and significance of matrix dislocation strengthening on the mechanical behavior of metastable high-entropy alloys via in-situ neutron diffraction experiments.
{"title":"Effect of matrix dislocation strengthening on deformation-induced martensitic transformation behavior of metastable high-entropy alloys","authors":"Kenta Yamanaka, Manami Mori, Daishin Yokosuka, Kazuo Yoshida, Yusuke Onuki, Shigeo Sato, Akihiko Chiba","doi":"10.1080/21663831.2023.2281593","DOIUrl":"https://doi.org/10.1080/21663831.2023.2281593","url":null,"abstract":"In this study, we investigate the influence of dislocation strengthening in the metastable parent phase on the deformation-induced martensitic transformation behavior of a face-centered cubic (fcc)...This paper firstly uncovers the role and significance of matrix dislocation strengthening on the mechanical behavior of metastable high-entropy alloys via in-situ neutron diffraction experiments.","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"56 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138528320","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 : 2023-11-15DOI: 10.1080/21663831.2023.2281589
P. D. Willenshofer, M. A. Tunes, C. Kainz, O. Renk, T. Kremmer, S. Gneiger, P. Uggowitzer, S. Pogatscher
Crossover aluminium alloys have recently been introduced as a new class of coarse-grained age-hardenable alloys. Here, we study the evolution of precipitation of the T-phase — -phase — in a 5xxx/7xxx crossover alloy with coarse- and ultrafined microstructures. Both alloys were examined using differential scanning calorimetry, X-ray diffraction and in situ transmission electron microscopy. The ultrafine-grained alloy revealed significant different and accelerated precipitation behaviour due to grain boundaries acting as fast diffusion paths. Additionally, the ultrafine-grained alloy revealed high resistance to grain growth upon heating, an effect primarily attributed to inter-granular precipitation synergistically with trans-granular precipitation of T-phase. GRAPHICAL ABSTRACT IMPACT STATEMENT The effect of coarse and ultrafine grains on the T-phase precipitation behaviour in novel aluminium crossover alloys was investigated. Thermal stability of ultrafine grains was achieved through controlled T-phase precipitation.
交叉铝合金是最近推出的一类新型粗晶粒时效硬化合金。在这里，我们研究了具有粗细和超细微观结构的 5xxx/7xxx 交叉合金中 T 相沉淀的演变过程。这两种合金均采用差示扫描量热法、X 射线衍射法和原位透射电子显微镜进行检测。由于晶界是快速扩散通道，超细晶粒合金显示出明显不同的加速析出行为。此外，超细晶粒合金在加热时具有很强的抗晶粒长大能力，这种效应主要归因于晶粒间析出与 T 相的跨晶粒析出的协同作用。图表说明 影响声明 研究了粗晶粒和超细晶粒对新型铝交叉合金中 T 相析出行为的影响。通过控制 T 相沉淀实现了超细晶粒的热稳定性。
{"title":"Precipitation behaviour in AlMgZnCuAg crossover alloy with coarse and ultrafine grains","authors":"P. D. Willenshofer, M. A. Tunes, C. Kainz, O. Renk, T. Kremmer, S. Gneiger, P. Uggowitzer, S. Pogatscher","doi":"10.1080/21663831.2023.2281589","DOIUrl":"https://doi.org/10.1080/21663831.2023.2281589","url":null,"abstract":"Crossover aluminium alloys have recently been introduced as a new class of coarse-grained age-hardenable alloys. Here, we study the evolution of precipitation of the T-phase — -phase — in a 5xxx/7xxx crossover alloy with coarse- and ultrafined microstructures. Both alloys were examined using differential scanning calorimetry, X-ray diffraction and in situ transmission electron microscopy. The ultrafine-grained alloy revealed significant different and accelerated precipitation behaviour due to grain boundaries acting as fast diffusion paths. Additionally, the ultrafine-grained alloy revealed high resistance to grain growth upon heating, an effect primarily attributed to inter-granular precipitation synergistically with trans-granular precipitation of T-phase. GRAPHICAL ABSTRACT IMPACT STATEMENT The effect of coarse and ultrafine grains on the T-phase precipitation behaviour in novel aluminium crossover alloys was investigated. Thermal stability of ultrafine grains was achieved through controlled T-phase precipitation.","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"8 3","pages":"1063 - 1072"},"PeriodicalIF":8.3,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139272981","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 : 2023-11-14DOI: 10.1080/21663831.2023.2280635
James A. Stewart, Jacob K. Startt, Remi Dingreville
Through atomistic simulations, we uncover the dynamic properties of the Cantor alloy under shock-loading conditions and characterize its equation-of-state over a wide range of densities and pressures along with spall strength at ultra-high strain rates. Simulation results reveal the role of local phase transformations during the development of the shock wave on the alloy's high spall strength. The simulated shock Hugoniot results are in remarkable agreement with experimental data, validating the predictability of the model. These mechanistic insights along with the quantification of dynamical properties can drive further advancements in various applications of this class of alloys under extreme environments.
{"title":"A molecular dynamics study on the Mie-Grüneisen equation-of-state and high strain-rate behavior of equiatomic CoCrFeMnNi","authors":"James A. Stewart, Jacob K. Startt, Remi Dingreville","doi":"10.1080/21663831.2023.2280635","DOIUrl":"https://doi.org/10.1080/21663831.2023.2280635","url":null,"abstract":"Through atomistic simulations, we uncover the dynamic properties of the Cantor alloy under shock-loading conditions and characterize its equation-of-state over a wide range of densities and pressures along with spall strength at ultra-high strain rates. Simulation results reveal the role of local phase transformations during the development of the shock wave on the alloy's high spall strength. The simulated shock Hugoniot results are in remarkable agreement with experimental data, validating the predictability of the model. These mechanistic insights along with the quantification of dynamical properties can drive further advancements in various applications of this class of alloys under extreme environments.","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"37 29","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134954621","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 : 2023-11-14DOI: 10.1080/21663831.2023.2279667
Gustavo A. Alvarez, Joseph Casamento, Len van Deurzen, Md Irfan Khan, Kamruzzaman Khan, Eugene Jeong, Elaheh Ahmadi, Huili Grace Xing, Debdeep Jena, Zhiting Tian
Aluminum scandium nitride (AlScN) has been receiving increasing interest for radio frequency microelectromechanical systems because of their higher achievable bandwidths owing to the larger piezoelectric response of AlScN compared to AlN. However, alloying scandium (Sc) with aluminum nitride (AlN) significantly lowers the thermal conductivity of AlScN due to phonon alloy scattering. Self-heating in AlScN devices potentially limits power handling, constrains the maximum transmission rate, and ultimately leads to thermal failure. We grew plasma-assisted molecular beam epitaxy (PAMBE) AlScN on AlN-Al2O3 and GaN-Al2O3 substrates, and compared the cross-plane thermal conductivity to current work on AlScN grown on Si substrates.
{"title":"Thermal conductivity enhancement of aluminum scandium nitride grown by molecular beam epitaxy","authors":"Gustavo A. Alvarez, Joseph Casamento, Len van Deurzen, Md Irfan Khan, Kamruzzaman Khan, Eugene Jeong, Elaheh Ahmadi, Huili Grace Xing, Debdeep Jena, Zhiting Tian","doi":"10.1080/21663831.2023.2279667","DOIUrl":"https://doi.org/10.1080/21663831.2023.2279667","url":null,"abstract":"Aluminum scandium nitride (AlScN) has been receiving increasing interest for radio frequency microelectromechanical systems because of their higher achievable bandwidths owing to the larger piezoelectric response of AlScN compared to AlN. However, alloying scandium (Sc) with aluminum nitride (AlN) significantly lowers the thermal conductivity of AlScN due to phonon alloy scattering. Self-heating in AlScN devices potentially limits power handling, constrains the maximum transmission rate, and ultimately leads to thermal failure. We grew plasma-assisted molecular beam epitaxy (PAMBE) AlScN on AlN-Al2O3 and GaN-Al2O3 substrates, and compared the cross-plane thermal conductivity to current work on AlScN grown on Si substrates.","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":"37 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134954438","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 : 2023-11-09DOI: 10.1080/21663831.2023.2275600
Yan Ma, Keliang Qiu, Ning Xu, Chengpeng Yang, Jiabao Zhang, Zihao Zhang, Qingsong Deng, Yonghai Yue, Lihua Wang, Xiaodong Han
The deformation of a single-crystal Fe48Mn32Co10Cr10 alloy is captured in situ at the atomic scale. The results show that full and partial dislocations, along with deformation twins, are involved in the deformation process. Partial dislocation activities result in the formation of nanotwins, high-density coherent twin boundaries, and incoherent twin boundaries. Full dislocations interact with the coherent/incoherent twin boundaries, and partial dislocations, thereby producing high strength and remarkable strain hardening. The observed high activity of full dislocations can be attributed to the inhomogeneous distribution of solid solution atoms in the alloy.
{"title":"In-situ atomic-scale observation of dislocation and deformation twin interaction in FeMnCoCr high-entropy alloy","authors":"Yan Ma, Keliang Qiu, Ning Xu, Chengpeng Yang, Jiabao Zhang, Zihao Zhang, Qingsong Deng, Yonghai Yue, Lihua Wang, Xiaodong Han","doi":"10.1080/21663831.2023.2275600","DOIUrl":"https://doi.org/10.1080/21663831.2023.2275600","url":null,"abstract":"The deformation of a single-crystal Fe48Mn32Co10Cr10 alloy is captured in situ at the atomic scale. The results show that full and partial dislocations, along with deformation twins, are involved in the deformation process. Partial dislocation activities result in the formation of nanotwins, high-density coherent twin boundaries, and incoherent twin boundaries. Full dislocations interact with the coherent/incoherent twin boundaries, and partial dislocations, thereby producing high strength and remarkable strain hardening. The observed high activity of full dislocations can be attributed to the inhomogeneous distribution of solid solution atoms in the alloy.","PeriodicalId":18291,"journal":{"name":"Materials Research Letters","volume":" 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135242526","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：