Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy

被引：302

作者：

Wani, I. S. ^{[1
]}

Bhattacharjee, T. ^{[2
]}

Sheikh, S. ^{[3
]}

Lu, Y. P. ^{[4
]}

Chatterjee, S. ^{[1
]}

Bhattacharjee, P. P. ^{[1
]}

Guo, S. ^{[3
]}

Tsuji, N. ^{[2
,5
]}

机构：

[1] IIT Hyderabad, Dept Mat Sci & Met Engn, Kandi 502285, Telangana, India

[2] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan

[3] Chalmers Univ Technol, Dept Mat & Mfg Technol, SE-41296 Gothenburg, Sweden

[4] Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, Dalian 116024, Peoples R China

[5] Kyoto Univ, ESISM, Kyoto, Japan

来源：

MATERIALS RESEARCH LETTERS | 2016年 / 4卷 / 03期

基金：

瑞典研究理事会;

关键词：

High-Entropy Alloys; Ordered Phases; Cold-Rolling; Annealing; Properties; TEXTURE EVOLUTION; PHASE-STABILITY; RECRYSTALLIZATION; MICROSTRUCTURE; DEFORMATION; BEHAVIOR;

D O I：

10.1080/21663831.2016.1160451

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The development of microstructure and mechanical properties was investigated in a heavily cold-rolled and annealed AlCoCrFeNi2.1 high-entropy alloy. The as-cast alloy having a eutectic morphology consisting of alternate bands of ordered L1(2) and B2 phases was 90% cold-rolled. The deformed microstructure showed profuse shear banding and disordering of the L12, but no transformation of the B2 phase. A duplex microstructure consisting of ultrafine equiaxed grains (similar to 0.60 mu m) of disordered face centered cubic and B2 was observed after annealing at 800 degrees C. The annealed material showed remarkable strength-ductility combination having ultimate tensile strength similar to 1.2 GPa and elongation to failure similar to 12%. [GRAPHICS] .

引用

页码：174 / 179

页数：6

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