Irreversible phase transformation in a CoCrFeMnNi high entropy alloy under hydrostatic compression

E-Wen Huang*, Chih Ming Lin, Jayant Jain, Sean R. Shieh, Ching Pao Wang, Yu Chun Chuang, Yen Fa Liao, Dong Zhou Zhang, Tony Huang, Tu Ngoc Lam, Wanchuck Woo, Soo Yeol Lee

*Corresponding author for this work

研究成果: Article同行評審

25 引文 斯高帕斯(Scopus)

摘要

An equal-molar CoCrFeMnNi, face-centered-cubic high-entropy alloy system is investigated using in-situ angular-dispersive X-ray diffraction under hydrostatic compression up to 20 GPa via diamond anvil cell. The evolutions of multiple diffraction peaks are collected simultaneously to elucidate the phase stability field. The results indicated that an irreversible phase transformation had occurred in the high entropy alloy upon decompression to ambient pressure. A reference material (n-type silicon-doped gallium arsenide) was investigated following the same protocol to demonstrate the different deformation mechanisms. It is suggested that the atomic bonding characteristics on the phase stability may play an important role in the high entropy alloys.

原文English
頁(從 - 到)10-14
頁數5
期刊Materials Today Communications
14
DOIs
出版狀態Published - 三月 2018

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