TY - JOUR

T1 - Microstructural characterization of medium entropy alloy thin films

AU - Chawake, N.

AU - Zálešák, Jakub

AU - Gammer, Christoph

AU - Franz, Robert

AU - Cordill, Megan J.

AU - Kim, Jeong Tae

AU - Eckert, Jürgen

N1 - Publisher Copyright: © 2019 Acta Materialia Inc.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - 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 AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of CoCrFeNi (fcc) and AlCoCrFe (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.

AB - 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 AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of CoCrFeNi (fcc) and AlCoCrFe (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.

UR - http://www.scopus.com/inward/record.url?scp=85073557943&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2019.10.001

DO - 10.1016/j.scriptamat.2019.10.001

M3 - Article

VL - 177.2020

SP - 22

EP - 26

JO - Scripta materialia

JF - Scripta materialia

SN - 1359-6462

IS - 1 March

ER -