Microstructural characterization of medium entropy alloy thin films

被引：26

作者：

Chawake, Niraj ^{[1
]}

Zalesak, Jakub ^{[1
]}

Gammer, Christoph ^{[1
]}

Franz, Robert ^{[2
]}

Cordill, Megan J. ^{[1
,2
]}

Kim, Jeong Tae ^{[1
]}

Eckert, Juergen ^{[1
,2
]}

机构：

[1] Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria

[2] Univ Leoben, Dept Mat Sci, Franz Josef Str 18, A-8700 Leoben, Austria

来源：

SCRIPTA MATERIALIA | 2020年 / 177卷

基金：

欧洲研究理事会;

关键词：

Medium entropy alloy; Thin film; Magnetron sputter deposition; Transmission electron microscopy; MECHANICAL-PROPERTIES; PLASTICITY; PHASE; NANOINDENTATION; BEHAVIOR; DESIGN; FCC;

D O I：

10.1016/j.scriptamat.2019.10.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study presents detailed microstructural investigations on single and bilayer thin films of two medium entropy alloys (MEAs) synthesized using magnetron sputter deposition. Single layer thin films of CoCrFeNi and AICoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of CoCrFeNi (fcc) and AICoCrFe (bcc) has a sharp interface between them with an equiatomic composition. Nanodiffraction was used to characterize planar defects in the fcc films. This first study on bilayer film of two MEAs is transformative to other systems and will help fundamental studies on high entropy alloys. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：22 / 26

页数：5

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