High-throughput screening of critical size of grain growth in gradient structured nickel

作     者：Yunli Lu Fenghui Duan Jie Pan Yi Li Yunli Lu;Fenghui Duan;Jie Pan;Yi Li

作者机构：Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of SciencesShenyang110016China School of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei230026China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第82卷第23期

页      面：33-39页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Key Research and Development Program of China(No.2017YFB0702003) the National Natural Science Foundation of China(No.51871217) support from the Youth Innovation Promotion Association,Chinese Academy of Sciences(No.2020194) 

主　　题：High-throughput Gradient structure Critical size Grain growth Thermal stablitiy 

摘      要：Nanocrystalline metals with high Gibbs free energy have a strong tendency towards thermally driven grain growth,thus understanding the critical size or temperature of grain growth is vital for their *** investigations of thermal stability were usually conducted on the materials with a homogeneous structure;however,these methods are time-consuming and *** the present work,we reveal a high-throughput experimental strategy to characterize the size-dependent thermal stability via annealing the gradient structured *** this method,the critical size of grain growth(d_(c))at a given annealing temperature was rapidly *** critical size of grain growth was~95 nm when annealed at 503 K for 3 h,which is consistent with the value reported in the homogeneous structured ***,this critical size was found to be identical in three types of gradient structured Ni,i.e.,independent on the gradient *** present work demonstrates a high-throughput strategy for exploring the critical size of grain growth and size-dependent thermal stability of metals.