Nanoprecipitate-Strengthened High-Entropy Alloys.
Nanoprecipitate-Strengthened High-Entropy Alloys.
复制标题
DOI：
10.1002/advs.202100870
复制
发表时间：
2021-12
期刊：
影响因子：
--
通讯作者：
Liaw PK
中科院分区：
文献类型：
--
作者：
Liu L;Zhang Y;Han J;Wang X;Jiang W;Liu CT;Zhang Z;Liaw PK
多元高熵合金(HEAs)可以被调谐成具有独特合金特性的简单相。体心立方(BCC)或六方密排(HCP)结构的HEAS具有较高的强度和硬度，但延性较低。面心立方(FCC)HEA具有良好的延展性、优异的耐腐蚀性和抗辐射性能。然而，他们的实力相对较低。因此，通常采用强化延性催化裂化相的策略来设计性能优良的HEA。在各种强化方法中，沉淀强化是一种引人注目的强化方法，因为合金中多主元素的特性和元素的缓慢扩散效应提供了形成细小而稳定的纳米析出物的机会，将合金的强度推到了新的高水平。本文综述了纳米沉淀物增强HEAs及其增强机理的研究进展。重点介绍了HEAs中纳米析出物的合金设计策略和控制方法。展望了未来相关领域的研究工作。综述了纳米沉淀强化高熵合金及其强化机理的最新研究进展。讨论了HEA中析出物的形成及其对力学性能的影响。重点介绍了HEAs中纳米析出物的合金设计策略和控制方法。展望了未来相关领域的研究工作。
Multicomponent high‐entropy alloys (HEAs) can be tuned to a simple phase with some unique alloy characteristics. HEAs with body‐centered‐cubic (BCC) or hexagonal‐close‐packed (HCP) structures are proven to possess high strength and hardness but low ductility. The faced‐centered‐cubic (FCC) HEAs present considerable ductility, excellent corrosion and radiation resistance. However, their strengths are relatively low. Therefore, the strategy of strengthening the ductile FCC matrix phase is usually adopted to design HEAs with excellent performance. Among various strengthening methods, precipitation strengthening plays a dazzling role since the characteristics of multiple principal elements and slow diffusion effect of elements in HEAs provide a chance to form fine and stable nanoscale precipitates, pushing the strengths of the alloys to new high levels. This paper summarizes and review the recent progress in nanoprecipitate‐strengthened HEAs and their strengthening mechanisms. The alloy‐design strategies and control of the nanoscale precipitates in HEAs are highlighted. The future works on the related aspects are outlined. This paper summarizes and reviews the recent progress in nanoprecipitate‐strengthened high‐entropy alloys (HEAs) and their strengthening mechanisms. The formation of precipitates in HEAs and their effects on the mechanical properties are addressed and discussed. The alloy‐design strategies and control of the nanoscale precipitates in HEAs are highlighted. The future works on the related aspects are outlined.
登录
查看更多内容
影响因子：
16.6
作者：
Fan L;Yang T;Zhao Y;Luan J;Zhou G;Wang H;Jiao Z;Liu CT
通讯作者：
Liu CT
影响因子：
64.8
作者：
Chen, Lian-Yi;Xu, Jia-Quan;Li, Xiao-Chun
通讯作者：
Li, Xiao-Chun
影响因子：
6
作者：
Cao, B. X.;Kong, H. J.;Liu, C. T.
通讯作者：
Liu, C. T.
影响因子：
9.4
作者：
Choi, Jin Hyeok;Jo, Min Chul;Lee, Sunghak
通讯作者：
Lee, Sunghak
DOI：
10.1073/pnas.1808660115
发表时间：
2018-09-04
影响因子：
11.1
作者：
Ding, Jun;Yu, Qin;Ritchie, Robert O.
通讯作者：
Ritchie, Robert O.