Effect of grain size on the tensile behavior of V10Cr15Mn5Fe35Co10Ni25 high entropy alloy

被引：62

作者：

Asghari-Rad, Peyman ^{[1
,2
]}

Sathiyamoorthi, Praveen ^{[1
,2
]}

Bae, Jae Wung ^{[1
,2
]}

Moon, Jongun ^{[1
,2
]}

Park, Jeong Min ^{[1
,2
]}

Zargaran, Alireza ^{[3
]}

Kim, Hyoung Seop ^{[1
,2
,3
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Ctr High Entropy Alloys, Pohang 790794, South Korea

[3] Pohang Univ Sci & Technol POSTECH, GIFT, Pohang 37673, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 744卷

基金：

新加坡国家研究基金会;

关键词：

High-entropy alloy (HEA); Mechanical twinning; Deformation mechanism; Grain size; Work-hardening; STACKING-FAULT ENERGY; HALL-PETCH RELATIONSHIP; MECHANICAL-PROPERTIES; DEFORMATION; STRAIN; MICROSTRUCTURE; STRESS; EVOLUTION; DESIGN;

D O I：

10.1016/j.msea.2018.12.077

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present study, V10Cr15Mn5Fe35Co10Ni25 (at%) high-entropy alloy (HEA) of a single phase face-centered cubic structure with various grain sizes was fabricated. The influences of grain size on the work-hardening behavior and deformation mechanisms were investigated. The fine-grained and coarse-grained samples showed different work hardening behaviors during room temperature tensile deformation. Microstructural analysis revealed the presence of a high-density tangled dislocation structure without any mechanical twinning in the fine-grained sample, while mechanical twinning was observed to be the additional deformation mechanism in the coarse-grained sample.

引用

页码：610 / 617

页数：8

共 39 条

[1]

[Anonymous], 2018, MET MATER INT

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