Microstructures in a Nb-Cr-V-W-Ta high entropy alloy during annealing

作     者：S.K.Varma Francelia Sanchez C.V.Ramana S.K.Varma;Francelia Sanchez;C.V.Ramana

作者机构：Department of MetallurgicalMaterials and Biomaterials EngineeringThe University of Texas at El PasoEl PasoTX 79968-0520USA Mechanical Engineering DepartmentThe University of Texas at El PasoEl PasoTX 79968-0520USA 

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

年 卷 期：2020年第52卷第18期

页      面：66-72页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：The funding for research was provided by the National Science Foundation with NSF-PREM grant#DMR-1827745 

主　　题：HEA Microstructures in a Nb-Cr-V-W-Ta high entropy alloy during annealing 

摘      要：A Nb-Cr-V-W-Ta high entropy alloy has been subjected to annealing treatment at 600,700 and 800℃in air for 6 *** different phases have been identified based on their composition in the as received *** annealing treatment does not alter the phase analysis and compositions except for the W-rich phase where minor changes in the composition have been *** is considered as an experimental evidence of sluggish diffusivity associated with *** of phase transformation during the heating and the minimal changes in observed compositions of the phases is an indication of the resistance to diffusion offered by the elements of the high entropy *** electron microscopy(SEM),energy dispersive spectroscopy(EDS)and color X-ray elemental mapping have been used to conduct this research.