High throughput synthesis enabled exploration of CoCrFeNi-based high entropy alloys  

作　　者：L.Zhao L.Jiang L.X.Yang H.Wang W.Y.Zhang G.Y.Ji X.Zhou W.A.Curtin X.B.Chen P.K.Liaw S.Y.Chen H.Z.Wang 

机构地区：[1]Beijing Advanced Innovation Center for Materials Genome Engineering,Beijing Key Laboratory of Metal Materials Characterization,Central Iron and Steel Research Institute,Beijing 100081,China [2]Institute for Advance Studies in Precision Materials,Yantai University,Yantai 264005,China [3]National Center for Materials Service Safety,University of Science and Technology Beijing,Beijing 100083,China [4]Laboratory for Multiscale Mechanics Modeling,Ecole Polytechnique Federale de Lausanne,Lausanne CH-1015,Switzerland [5]School of Engineering,RMIT University,Melbourne 3046,Australia [6]Department of Materials Science and Engineering,The University of Tennessee,37996,USA

出　　处：《Journal of Materials Science & Technology》2022年第15期269-282,共14页材料科学技术（英文版）

基　　金：financially supported by the National Key Research and Development Program of China(2016YFB0700300);the financial support from National Natural Science Foundation of China(No.52001271);the supports from the National Science Foundation(DMR-1611180 and 1809640);the US Army Research Office(W911NF-13-1-0438 and W911NF-19-20049);the Swiss National Science Foundation for support of this work by project"Harnessing atomicscale randomness:design and optimization of mechanical performance in High Entropy Alloys"(Project 200021_118198/1)。

摘　　要：To accelerate the exploration,screening,and discovery of structural high-entropy alloys with targeted properties,the newly developed High-Throughput Hot-Isostatic-Pressing based Micro-Synthesis Approach(HT-HIP-MSA)is employed to efficiently synthesize and characterize 85 combinatorial alloys in a 13-principal element alloying space.These Co Cr Fe Ni-based high entropy alloys span 1 quaternary,9 quinary,and 36 senary alloy systems,and their composition-structure-property relationships are characterized and analyzed experimentally and computationally.From the single-phase FCC CoCrFeNi alloy base,with Mn,Cu,Ti,Nb,Ta,Mo,W,Al,and Si as principal element alloying additions,we find(1)the extended Mn solubility in the single-phase FCC CoCrFeNi-Mn_(x) alloys,(2)the destabilizing behavior for most of the quinary and senary alloys,and(3)the distinctive solid-solution-strengthening effects in the alloys.In combining the computational methods,the HT-HIP-MSA can be systematic and economic to explore and refine the compositions,structures,and properties of structural high-entropy alloys.

关 键 词：High-entropy alloys HIGH-THROUGHPUT Composition-structure-property 

分 类 号：TG139[一般工业技术—材料科学与工程]