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The high-entropy alloys with high hardness and soft magnetic property prepared by mechanical alloying and high-pressure sintering
Yu, PF; Zhang, LJ; Zheng LR(郑黎荣); Liu J(刘景); Cheng, H; Zhang, H; Ma, MZ; Li, YC; Li, G; Liaw, PK; Liu, RP
2016
发表期刊INTERMETALLICS
卷号70页码:82-87
摘要The equiatomic multiprincipal CoCrFeCuNi and CoCrFeMnNi high-entropy alloys (HEAs) were consolidated via high pressure sintering (HPS) from the powders prepared by the mechanical alloying method (MA). The structures of the MA'ed CoCrFeCuNi and CoCrFeMnNi powders consisted of a face-centered cubic (FCC) phase and a minority body-centered cubic (BCC) phase. After being consolidated by HPS at 5 GPa, the structure of both HEAs transformed to a single FCC phase. The grain sizes of the HPS'ed CoCrFeCuNi and CoCrFeMnNi HEAs were about 100 nm. The alloys keep the FCC structure until the pressure reaches 31 GPa. The hardness of the HPS'ed CoCrFeCuNi and CoCrFeMnNi HEAs were 494 Hv and 587 Hv, respectively, much higher than their counterparts prepared by casting. Both alloys show typical paramagnetism, however, possessing different saturated magnetization. The mechanisms responsible for the observed influence of Cu and Mn on mechanical behavior and magnetic property of the HEAs are discussed in detail. (C) 2015 Elsevier Ltd. All rights reserved.
文章类型期刊论文
关键词High-entropy alloy Mechanical alloying High-pressure sintering High hardness Magnetic property
DOI10.1016/j.intermet.2015.11.005
关键词[WOS]GRAIN-GROWTH ; MULTICOMPONENT ALLOYS ; CU POWDERS ; BEHAVIOR ; MICROSTRUCTURE ; TORSION ; DESIGN
语种英语
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000368954000012
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260266
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Yu, PF,Zhang, LJ,Zheng LR,et al. The high-entropy alloys with high hardness and soft magnetic property prepared by mechanical alloying and high-pressure sintering[J]. INTERMETALLICS,2016,70:82-87.
APA Yu, PF.,Zhang, LJ.,郑黎荣.,刘景.,Cheng, H.,...&Liu, RP.(2016).The high-entropy alloys with high hardness and soft magnetic property prepared by mechanical alloying and high-pressure sintering.INTERMETALLICS,70,82-87.
MLA Yu, PF,et al."The high-entropy alloys with high hardness and soft magnetic property prepared by mechanical alloying and high-pressure sintering".INTERMETALLICS 70(2016):82-87.
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