A study of lattice elasticity from low entropy metals to medium and high entropy alloys

被引：56
作者：
Huang, E-Wen [1 ]
Yu, Dunji [2 ]
Yeh, Jien-Wei [3 ]
Lee, Chi [3 ]
An, Ke [2 ]
Tu, Shan-Yi [1 ,4 ]
机构：
[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan
[2] Oak Ridge Natl Lab, Spallat Neutron Source, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA
[3] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan
[4] Natl Cent Univ, Dept Chem & Mat Engn, Jhongli 32001, Taiwan
来源：
SCRIPTA MATERIALIA | 2015年 / 101卷
关键词：
Neutron diffraction; Metal and alloys; Elastic behavior; Microstructure; High entropy alloy; DEFORMATION; ORDER; TRANSFORMATION; PLASTICITY; MECHANICS; CONSTANTS; FORCES; PHASE;
D O I：
10.1016/j.scriptamat.2015.01.011
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An equal-molar CoCrFeMnNi, face-centered-cubic high-entropy alloy system and a face-centered-cubic stainless steel described as a medium-entropy system, are measured by in situ neutron-diffraction experiments subjected to continuous tension at room and several elevated temperatures, respectively. With spallation neutron, the evolution of multiple diffraction peaks is collected simultaneously for lattice-elasticity study. Temperature variation of elastic stiffness of a single face-centered-cubic-phase Ni and a single face-centered-cubic-phase Fe are compared as low-entropy metals. The CoCrFeMnNi high-entropy alloy shows distinct lattice anisotropy. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：32 / 35
页数：4
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