Irradiation Resistance in Al x CoCrFeNi High Entropy Alloys

被引：232

作者：

Xia, S. Q. ^{[1
]}

Yang, X. ^{[1
,2
]}

Yang, T. F. ^{[3
]}

Liu, S. ^{[1
]}

Zhang, Y. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[3] Peking Univ, Ctr Appl Phys & Technol, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

JOM | 2015年 / 67卷 / 10期

基金：

美国国家科学基金会; 国家高技术研究发展计划(863计划);

关键词：

SOLID-SOLUTION; ELECTRON-IRRADIATION; MATERIALS CHALLENGES; STRUCTURAL-MATERIALS; MICROSTRUCTURE; BEHAVIOR; PHASE;

D O I：

10.1007/s11837-015-1568-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The irradiation behavior of Al (x) CoCrFeNi (x = 0.1, 0.75, and 1.5) high entropy alloys was studied under 3 MeV Au-ions irradiation. The microstructural change and volume swelling due to irradiation were investigated using transmission electron microscopy and atomic force microscopy. The results showed that, with increasing the Al contents, the phase crystal structures of the as-cast samples evolved from face-centered cubic (FCC), to FCC + body-centered cubic (BCC), and BCC and irradiation-induced volume swelling increased. All alloys showed exceptional structural stability when irradiated up to over 50 displacement per atom at 298 K, and the irradiation-induced volume swellings in Al (x) CoCrFeNi HEAs were significantly lower than conventional nuclear materials under similar irradiation dosages.

引用

页码：2340 / 2344

页数：5

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