Pressure-induced ordering phase transition in high-entropy alloy

doi:10.1016/j.intermet.2018.10.003

	Pressure-induced ordering phase transition in high-entropy alloy
	Zhang, Mengdi; Li YC(李延春); Li, Gong; Liaw, Peter K.; Li, Yanchun; Yu, Pengfei; Fan, Jiantao; Ma, Yimo; Dong, Wanqing; Cui, Peng
刊名	INTERMETALLICS
	2018
卷号	103 页码:63-66
关键词	High-entropy alloy Phase transition X-ray techniques Powder metallurgy
ISSN号	0966-9795
DOI	10.1016/j.intermet.2018.10.003
文献子类	Article
英文摘要	The order-disorder transition has long been viewed as an important key to study materials structures and properties. Especially, pressure-induced ordering attracted the intense research interest in the recent years. In the present work, the pressure-induced ordering phase transition (disordered-fcc to ordered-fcc structures) in a CoCrCuFeNiPr high-entropy alloy (HEA) was found by employing the in situ high-pressure energy-dispersive X-ray diffraction (EDXRD) technique. It is interesting to note that there exists a pressure-induced fast ordering transition at the pressure ranging from 7.8 GPa to 16.0 GPa, followed by a slow transition with the pressure increase up to 106.4 GPa. We suggest that this phenomenon is caused by the presence of some short-range-order (SRO) local structures in the CoCrCuFeNiPr HEA. These SRO structures can be regarded as embryos, which will develop into the ordered phase with increasing the pressure in the prototype materials. This pressure-induced ordering may provides a new technique for tuning structures and properties of HEAs.
电子版国际标准刊号	1879-0216
WOS关键词	SOLID-SOLUTIONS ; BEHAVIOR ; COATINGS ; CRYSTAL ; STATE ; FCC
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000450380700007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286658]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang, Mengdi,Li YC,Li, Gong,et al. Pressure-induced ordering phase transition in high-entropy alloy[J]. INTERMETALLICS,2018,103:63-66.
APA	Zhang, Mengdi.,李延春.,Li, Gong.,Liaw, Peter K..,Li, Yanchun.,...&Zhang, Lijun.(2018).Pressure-induced ordering phase transition in high-entropy alloy.INTERMETALLICS,103,63-66.
MLA	Zhang, Mengdi,et al."Pressure-induced ordering phase transition in high-entropy alloy".INTERMETALLICS 103(2018):63-66.