Materials & Design最新文献

英文中文

Achieving superior mechanical properties by regulating nano-phases in cast Al-Li alloys: Experimental and simulation

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-02 DOI: 10.1016/j.matdes.2025.113782

Wengang Bu , Pengfei He , Jiamao Hao , Rong Wang , Zhenfeng Hu , Jinyong Mo , Xiubing Liang

Due to the outstanding advantages such as low density, high modulus, and high damage tolerance, cast Al-Li alloys are highly promising metallic materials for load-bearing applications in the coming decades. However, compared to their wrought counterparts, the mechanical properties of these alloys, particularly the ductility, are still unsatisfactory, which severely limits their further applications. Here, we report that the mechanical properties of cast Al-Li alloys can be significantly improved by regulating various nano-phases during aging. Results show that the introduction of 0.2 wt% Zr in the Al-2Li-2Cu-0.5 Mg alloy contributes to grain refinement by providing a large number of primary Al₃Zr particles acting as ideal heterogeneous nucleation sites for the α-Al matrix. During subsequent aging, Al₃Li tends to nucleate and grow on the Al₃Zr surface to reduce the interfacial energy and form a nano-complex with a core–shell structure in 0.2Zr alloy. Then, the Al₃Li shell can serve as an effective nucleation site for the T₁ and θʹ phases. Density functional theory (DFT) calculations indicate that nucleation of T₁ and θʹ on the Al₃Li shell reduces the interfacial energy, which promotes their uniform precipitation. In this case, unique Al₃(Zr, Li) particles and higher density of finer T₁ and θʹ phases provide a substantial Orowan strengthening effect, alleviating the stress concentration. In addition, grain refinement improves the coordination of plastic deformation in 0.2Zr alloys. As a result, the ductility of 0.2Zr alloy increases from 3.6 % to 7.1 % compared to the Base alloy, accompanied by a 66 MPa increase in ultimate tensile strength. This work is expected to offer a new engineering approach to designing high-performance cast Al-Li alloy components with broad application prospects.

{"title":"Achieving superior mechanical properties by regulating nano-phases in cast Al-Li alloys: Experimental and simulation","authors":"Wengang Bu , Pengfei He , Jiamao Hao , Rong Wang , Zhenfeng Hu , Jinyong Mo , Xiubing Liang","doi":"10.1016/j.matdes.2025.113782","DOIUrl":"10.1016/j.matdes.2025.113782","url":null,"abstract":"<div><div>Due to the outstanding advantages such as low density, high modulus, and high damage tolerance, cast Al-Li alloys are highly promising metallic materials for load-bearing applications in the coming decades. However, compared to their wrought counterparts, the mechanical properties of these alloys, particularly the ductility, are still unsatisfactory, which severely limits their further applications. Here, we report that the mechanical properties of cast Al-Li alloys can be significantly improved by regulating various nano-phases during aging. Results show that the introduction of 0.2 wt% Zr in the Al-2Li-2Cu-0.5 Mg alloy contributes to grain refinement by providing a large number of primary Al<sub>3</sub>Zr particles acting as ideal heterogeneous nucleation sites for the α-Al matrix. During subsequent aging, Al<sub>3</sub>Li tends to nucleate and grow on the Al<sub>3</sub>Zr surface to reduce the interfacial energy and form a nano-complex with a core–shell structure in 0.2Zr alloy. Then, the Al<sub>3</sub>Li shell can serve as an effective nucleation site for the T<sub>1</sub> and θʹ phases. Density functional theory (DFT) calculations indicate that nucleation of T<sub>1</sub> and θʹ on the Al<sub>3</sub>Li shell reduces the interfacial energy, which promotes their uniform precipitation. In this case, unique Al<sub>3</sub>(Zr, Li) particles and higher density of finer T<sub>1</sub> and θʹ phases provide a substantial Orowan strengthening effect, alleviating the stress concentration. In addition, grain refinement improves the coordination of plastic deformation in 0.2Zr alloys. As a result, the ductility of 0.2Zr alloy increases from 3.6 % to 7.1 % compared to the Base alloy, accompanied by a 66 MPa increase in ultimate tensile strength. This work is expected to offer a new engineering approach to designing high-performance cast Al-Li alloy components with broad application prospects.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113782"},"PeriodicalIF":7.6,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Superior hemostatic and wound-healing properties of tetrastigma polysaccharide” [Mater. Des. 241 (2024) 112967]

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-02 DOI: 10.1016/j.matdes.2025.113743

Shengyu Li , Wenjun Xu , Weihan Zhu , Jinwei Wang , Jintao Shi , Jingyi Tang , Xia Liu , Wei Zhang , Huiying Fu , Qiyang Shou

引用次数: 0

Scalable phononic metamaterials: Tunable bandgap design and multi-scale experimental validation

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-02 DOI: 10.1016/j.matdes.2025.113778

Timon Meier , Vasileios Korakis , Brian W. Blankenship , Haotian Lu , Eudokia Kyriakou , Savvas Papamakarios , Zacharias Vangelatos , M. Erden Yildizdag , Gordon Zyla , Xiaoxing Xia , Xiaoyu Zheng , Yoonsoo Rho , Maria Farsari , Costas P. Grigoropoulos

Phononic metamaterials offer unprecedented control over wave propagation, making them essential for applications such as vibration isolation, waveguiding, and acoustic filtering. However, achieving scalable and precisely tunable bandgap properties across different length scales remains challenging. This study presents a user-friendly design framework for phononic metamaterials, enabling ultra-wide bandgap tunability (B/

ω_{c}

ratios up to 172 %) across multiple frequency ranges and scales. Using finite element simulations of a Yablonovite-inspired unit cell, we establish a comprehensive parametric design space that illustrates how geometric parameters, such as sphere size and beam diameter, controls bandgap width and frequency. The scalability and robustness of the framework are validated through experimental testing on additively manufactured structures at both macro (10 mm) and micro (80 µm) scales, fabricated using Stereolithography and Two-Photon Polymerization. Transmission loss measurements, conducted with piezoelectric transducers and laser vibrometry, closely match simulations in the kHz and MHz frequency ranges, confirming the reliability and consistency of the bandgap behavior across scales. This work bridges theory and experiments at multiple scales, offering a practical methodology for the rapid design of phononic metamaterials and expanding their potential for diverse applications across a broad range of frequencies.

{"title":"Scalable phononic metamaterials: Tunable bandgap design and multi-scale experimental validation","authors":"Timon Meier , Vasileios Korakis , Brian W. Blankenship , Haotian Lu , Eudokia Kyriakou , Savvas Papamakarios , Zacharias Vangelatos , M. Erden Yildizdag , Gordon Zyla , Xiaoxing Xia , Xiaoyu Zheng , Yoonsoo Rho , Maria Farsari , Costas P. Grigoropoulos","doi":"10.1016/j.matdes.2025.113778","DOIUrl":"10.1016/j.matdes.2025.113778","url":null,"abstract":"<div><div>Phononic metamaterials offer unprecedented control over wave propagation, making them essential for applications such as vibration isolation, waveguiding, and acoustic filtering. However, achieving scalable and precisely tunable bandgap properties across different length scales remains challenging. This study presents a user-friendly design framework for phononic metamaterials, enabling ultra-wide bandgap tunability (<em>B/</em><span><math><msub><mi>ω</mi><mi>c</mi></msub></math></span> ratios up to 172 %) across multiple frequency ranges and scales. Using finite element simulations of a Yablonovite-inspired unit cell, we establish a comprehensive parametric design space that illustrates how geometric parameters, such as sphere size and beam diameter, controls bandgap width and frequency. The scalability and robustness of the framework are validated through experimental testing on additively manufactured structures at both macro (10 mm) and micro (80 µm) scales, fabricated using Stereolithography and Two-Photon Polymerization. Transmission loss measurements, conducted with piezoelectric transducers and laser vibrometry, closely match simulations in the kHz and MHz frequency ranges, confirming the reliability and consistency of the bandgap behavior across scales. This work bridges theory and experiments at multiple scales, offering a practical methodology for the rapid design of phononic metamaterials and expanding their potential for diverse applications across a broad range of frequencies.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113778"},"PeriodicalIF":7.6,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cover_251

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/S0264-1275(25)00174-1

引用次数: 0

Corrigendum to “Ballistic impact performance of Kevlar®/UHMWPE hybrid composite panels with a liquid thermoplastic resin, Elium®” [Mater. Des. 252 (2025) 113706]

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/j.matdes.2025.113756

Aswani Kumar Bandaru , Dinesh Kumar Kothandan , Hemant Chouhan , Hong Ma , Ronan M. O’Higgins

引用次数: 0

Topology and fiber path optimization of composite structures: A critical review

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/j.matdes.2025.113699

Shuya Nozawa, Gokhan Serhat

Fiber-reinforced composites have gained worldwide popularity due to their superb properties including high specific stiffness and strength. In addition to their favorable physical attributes, the mechanical characteristics of these materials can be tailored to maximize their performance for distinct applications. Recent advances in additive manufacturing have enabled the fabrication of curvilinear fibers, which can further improve internal load allocation. Composite structures become even more effective when stiffness tailoring is combined with topology optimization, which concerns determining the ideal material distribution for a specific structural design problem. However, collective optimization of material anisotropy and geometry poses inherent challenges that prompted the development of diverse methodologies. This review article summarizes the state-of-the-art composite design techniques developed to optimize fiber paths and structural topology sequentially or simultaneously. The available approaches are categorized according to their scope and intrinsic principles unlike many existing works employing classification based on optimization or material parametrization schemes. The paper also covers experimental results as another rare feature. The advantages and shortcomings of the investigated methods are discussed considering various aspects including effectiveness, ease of use, computational cost, versatility, robustness, and suitability for manufacturing. The review concludes with remarks on relevant open problems and potential future research directions.

纤维增强复合材料由于具有高比刚度和强度等优异性能，在全球范围内广受欢迎。除了有利的物理属性外，这些材料的机械特性还可以根据不同的应用进行定制，以最大限度地提高其性能。增材制造技术的最新进展使曲线纤维的制造成为可能，从而进一步改善了内部负载分配。当刚度定制与拓扑优化相结合时，复合材料结构会变得更加有效，拓扑优化涉及确定特定结构设计问题的理想材料分布。然而，材料各向异性和几何形状的综合优化带来了固有的挑战，促使人们开发出各种不同的方法。本综述文章总结了目前最先进的复合材料设计技术，这些技术可先后或同时优化纤维路径和结构拓扑。与许多基于优化或材料参数化方案进行分类的现有著作不同，本文根据现有方法的范围和内在原理对其进行了分类。本文还涉及实验结果，这是另一个难得的特点。论文从有效性、易用性、计算成本、通用性、鲁棒性和制造适用性等多方面讨论了所研究方法的优势和不足。综述最后对相关的未决问题和潜在的未来研究方向进行了评论。

{"title":"Topology and fiber path optimization of composite structures: A critical review","authors":"Shuya Nozawa, Gokhan Serhat","doi":"10.1016/j.matdes.2025.113699","DOIUrl":"10.1016/j.matdes.2025.113699","url":null,"abstract":"<div><div>Fiber-reinforced composites have gained worldwide popularity due to their superb properties including high specific stiffness and strength. In addition to their favorable physical attributes, the mechanical characteristics of these materials can be tailored to maximize their performance for distinct applications. Recent advances in additive manufacturing have enabled the fabrication of curvilinear fibers, which can further improve internal load allocation. Composite structures become even more effective when stiffness tailoring is combined with topology optimization, which concerns determining the ideal material distribution for a specific structural design problem. However, collective optimization of material anisotropy and geometry poses inherent challenges that prompted the development of diverse methodologies. This review article summarizes the state-of-the-art composite design techniques developed to optimize fiber paths and structural topology sequentially or simultaneously. The available approaches are categorized according to their scope and intrinsic principles unlike many existing works employing classification based on optimization or material parametrization schemes. The paper also covers experimental results as another rare feature. The advantages and shortcomings of the investigated methods are discussed considering various aspects including effectiveness, ease of use, computational cost, versatility, robustness, and suitability for manufacturing. The review concludes with remarks on relevant open problems and potential future research directions.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"251 ","pages":"Article 113699"},"PeriodicalIF":7.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evading strength-ductility trade-off in a metastability engineered layered metallic composite

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/j.matdes.2025.113786

Roopam Jain , Ravi Sankar Haridas , Prithvi Awasthi , Abhijeet Dhal , Rajiv S. Mishra

This investigation demonstrates a unique layered metallic composite (LMC) design strategy which exploits the metastability tunability of the transformative complex concentrate alloys (CCAs). Metastability engineered LMC (ME-LMC) was prepared by sandwiching a relatively less metastable Fe_38.5Mn₂₀Co₂₀Cr₁₅Si₅Cu_1.5 CCA (SFE = 12 mJ/m²) between the two layers of the highly metastable Fe₄₀Mn₂₀Co₂₀Cr₁₅Si₅ CCA (SFE = 6 mJ/m²). In ME-LMC, plastic instability of highly metastable alloy got delayed resulting in slight increase in the ultimate tensile strength (UTS) while maintaining comparable ductility compared to the monolithic CCAs. Superior properties of the ME-LMC are attributed to the enhanced activation of transformation and twin systems in the HCP phase due to the generation of biaxial state of stresses originating from the CCA interface affected zones. Enhanced transformation and twinning led to the greater dynamic refinement of the microstructure providing higher strain hardening enabling greater ductility while benefitting from the dynamic Hall-Petch strengthening. A dislocation density evolution based modelling framework is developed to elucidate the enhancement in mechanical properties.

{"title":"Evading strength-ductility trade-off in a metastability engineered layered metallic composite","authors":"Roopam Jain , Ravi Sankar Haridas , Prithvi Awasthi , Abhijeet Dhal , Rajiv S. Mishra","doi":"10.1016/j.matdes.2025.113786","DOIUrl":"10.1016/j.matdes.2025.113786","url":null,"abstract":"<div><div>This investigation demonstrates a unique layered metallic composite (LMC) design strategy which exploits the metastability tunability of the transformative complex concentrate alloys (CCAs). Metastability engineered LMC (ME-LMC) was prepared by sandwiching a relatively less metastable Fe<sub>38.5</sub>Mn<sub>20</sub>Co<sub>20</sub>Cr<sub>15</sub>Si<sub>5</sub>Cu<sub>1.5</sub> CCA (SFE = 12 mJ/m<sup>2</sup>) between the two layers of the highly metastable Fe<sub>40</sub>Mn<sub>20</sub>Co<sub>20</sub>Cr<sub>15</sub>Si<sub>5</sub> CCA (SFE = 6 mJ/m<sup>2</sup>). In ME-LMC, plastic instability of highly metastable alloy got delayed resulting in slight increase in the ultimate tensile strength (UTS) while maintaining comparable ductility compared to the monolithic CCAs. Superior properties of the ME-LMC are attributed to the enhanced activation of transformation and twin systems in the HCP phase due to the generation of biaxial state of stresses originating from the CCA interface affected zones. Enhanced transformation and twinning led to the greater dynamic refinement of the microstructure providing higher strain hardening enabling greater ductility while benefitting from the dynamic Hall-Petch strengthening. A dislocation density evolution based modelling framework is developed to elucidate the enhancement in mechanical properties.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113786"},"PeriodicalIF":7.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Driving martensitic transformation through pre-cold deformation: Unveiling the mechanism of microstructural evolution in martensite bearing steel 通过预冷变形推动马氏体转变：揭示马氏体轴承钢的微观结构演变机制

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/j.matdes.2025.113788

Decheng Jia , Chunsheng Zhang , Runzhou Dong , Haida Zhang , Xinliang Gao , Xiaoyong Feng , Zhinan Yang , Fucheng Zhang

Bearing steel is used to produce bearing components through preforming processes, such as cold heading and cold rolling, prior to heat treatment. Cold rolling is a key developmental direction for manufacturing high-performance bearing. This research comprehensively examines how pre-cold deformation affects the microstructural evolution and mechanical characteristics of martensitic bearing steel. The findings suggest that pre-cold deformation reduces the original austenite grain size decreases by half, and the cementite particles become more uniformly distributed. Simultaneously, pre-cold deformation treatment considerably increases the bearing steel hardness from 715HV to 768HV whilst maintaining its toughness. The homogenisation of cementite size and the increase in hardness enhance the wear resistance of the samples by 34%. Furthermore, we explores the microstructural evolution mechanisms during subsequent phase transformations: the bearing steel in the process of martensitic transformation, the pre-cold deformation treatment leads to a strong variant selection, which increases the intrinsic nucleation rate and reduces the autocatalytic nucleation rate of martensite. The change of nucleation positions causes the great differences in the crystallography of the samples. The martensite twins transforming into twinned variants that adhere to the Kurdjumov-Sachs orientation relationship. In this study, we have established a relationship linking crystallography, phase transitions, and mechanical properties.

{"title":"Driving martensitic transformation through pre-cold deformation: Unveiling the mechanism of microstructural evolution in martensite bearing steel","authors":"Decheng Jia , Chunsheng Zhang , Runzhou Dong , Haida Zhang , Xinliang Gao , Xiaoyong Feng , Zhinan Yang , Fucheng Zhang","doi":"10.1016/j.matdes.2025.113788","DOIUrl":"10.1016/j.matdes.2025.113788","url":null,"abstract":"<div><div>Bearing steel is used to produce bearing components through preforming processes, such as cold heading and cold rolling, prior to heat treatment. Cold rolling is a key developmental direction for manufacturing high-performance bearing. This research comprehensively examines how pre-cold deformation affects the microstructural evolution and mechanical characteristics of martensitic bearing steel. The findings suggest that pre-cold deformation reduces the original austenite grain size decreases by half, and the cementite particles become more uniformly distributed. Simultaneously, pre-cold deformation treatment considerably increases the bearing steel hardness from 715HV to 768HV whilst maintaining its toughness. The homogenisation of cementite size and the increase in hardness enhance the wear resistance of the samples by 34%. Furthermore, we explores the microstructural evolution mechanisms during subsequent phase transformations: the bearing steel in the process of martensitic transformation, the pre-cold deformation treatment leads to a strong variant selection, which increases the intrinsic nucleation rate and reduces the autocatalytic nucleation rate of martensite. The change of nucleation positions causes the great differences in the crystallography of the samples. The martensite twins transforming into twinned variants that adhere to the Kurdjumov-Sachs orientation relationship. In this study, we have established a relationship linking crystallography, phase transitions, and mechanical properties.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113788"},"PeriodicalIF":7.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced intragranular precipitation strengthening in Sc-microalloyed ultrafine-grained SiCp/Al-Cu-Mg composites via retrogression and re-ageing heat treatment

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/j.matdes.2025.113789

Yunpeng Cai, Kan Liu, Yiwei Dong, Andong Hua, Yishi Su, Qiubao Ouyang, Di Zhang

Ultrafine-grained Al matrix composites suffer from the insufficient dislocation accumulation capability and intragranular precipitation strengthening due to their length-scale dependent precipitation behaviors. In this work, a combination of Sc-microalloying and a retrogression and re-ageing (RRA) route was applied on the SiC_p/Al-Cu-Mg composites to achieve well-balanced strength and ductility. Compared to the T6 treatment, RRA heat treatment exhibit a significant strengthening effect in Sc-microalloyed composites with only a slight loss in ductility. The yield strength and ultimate strength of the Sc-RRA samples reach up to 686.4 MPa and 734.5 MPa, respectively. The plastic deformation mechanism was analyzed by thermal activation analysis and TEM observation of deformed microstructure. The plastic deformation of UFG composites, both with and without Sc, is primarily governed by a dislocation-grain boundary interaction mechanism. As confirmed by the observed stacking faults, the Sc-microalloyed composite subjected to T6 treatment suffers from poor dislocation storge capacity and insufficient intragranular precipitation strengthening. In contrast, the RRA treatment promotes the formation of intragranular Al₃Sc precipitates and GP zones, which improve the dislocation accumulation capability and precipitation strengthening of ultrafine-grained composites by pinning dislocations. This work provides an accessible pathway to exploit aluminum matrix composites with advanced strength-ductility balance.

{"title":"Enhanced intragranular precipitation strengthening in Sc-microalloyed ultrafine-grained SiCp/Al-Cu-Mg composites via retrogression and re-ageing heat treatment","authors":"Yunpeng Cai, Kan Liu, Yiwei Dong, Andong Hua, Yishi Su, Qiubao Ouyang, Di Zhang","doi":"10.1016/j.matdes.2025.113789","DOIUrl":"10.1016/j.matdes.2025.113789","url":null,"abstract":"<div><div>Ultrafine-grained Al matrix composites suffer from the insufficient dislocation accumulation capability and intragranular precipitation strengthening due to their length-scale dependent precipitation behaviors. In this work, a combination of Sc-microalloying and a retrogression and re-ageing (RRA) route was applied on the SiC<sub>p</sub>/Al-Cu-Mg composites to achieve well-balanced strength and ductility. Compared to the T6 treatment, RRA heat treatment exhibit a significant strengthening effect in Sc-microalloyed composites with only a slight loss in ductility. The yield strength and ultimate strength of the Sc-RRA samples reach up to 686.4 MPa and 734.5 MPa, respectively. The plastic deformation mechanism was analyzed by thermal activation analysis and TEM observation of deformed microstructure. The plastic deformation of UFG composites, both with and without Sc, is primarily governed by a dislocation-grain boundary interaction mechanism. As confirmed by the observed stacking faults, the Sc-microalloyed composite subjected to T6 treatment suffers from poor dislocation storge capacity and insufficient intragranular precipitation strengthening. In contrast, the RRA treatment promotes the formation of intragranular Al<sub>3</sub>Sc precipitates and GP zones, which improve the dislocation accumulation capability and precipitation strengthening of ultrafine-grained composites by pinning dislocations. This work provides an accessible pathway to exploit aluminum matrix composites with advanced strength-ductility balance.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"252 ","pages":"Article 113789"},"PeriodicalIF":7.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Comparative analysis of hull steel corrosion in tropical marine atmosphere: Correlation between indoor simulations and outdoor exposures” [Mater. Des. 249 (2025) 113575]

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design

Pub Date : 2025-03-01 DOI: 10.1016/j.matdes.2025.113656

Feng Gao , Caifu Yang , Weiyi Wang , Yajun Pang , Naipeng Zhou , Jian Li , Xiaobing Luo , Feng Chai

引用次数: 0

首页上一页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Materials & Design

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

﹀