Achieving superior strength-ductility synergy and enhanced corrosion resistance in a novel medium-entropy alloy via grain refinement strategy

被引：8

作者：

Pan, Zhimin ^{[1
,2
]}

Luo, Hong ^{[1
,2
]}

Zhao, Qiancheng ^{[1
,2
]}

Cheng, Hongxu ^{[1
,2
]}

Dou, Chaoyang ^{[1
,2
]}

Yan, Xiongbo ^{[3
]}

Liu, Yang ^{[4
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China

[2] Minist Educ MOE, Key Lab Corros & Protect, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China

[4] Hunan Univ Sci & Technol, Hunan Engn Res Ctr Forming Technol & Damage Resist, Sch Mech Engn, Xiangtan 411201, Peoples R China

来源：

CORROSION SCIENCE | 2024年 / 237卷

基金：

中国国家自然科学基金;

关键词：

Medium entropy alloy; Corrosion resistance; Mechanical property; Grain boundary; BOUNDARY-CHARACTER-DISTRIBUTION; MECHANICAL-PROPERTIES; BEHAVIOR; MICROSTRUCTURE; TEMPERATURE; STRESS; COMBINATION; DEPENDENCE; STRAIN; STEEL;

D O I：

10.1016/j.corsci.2024.112314

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of grain size on mechanical properties and corrosion resistance of Ni62Cr10V28 MEA was investigated. The findings indicated that grain refinement significantly enhanced the corrosion resistance of the investigated alloys, attributed to the distinctive characteristics of grain boundaries and the fast formation rate of passive film. Additionally, the investigated alloys demonstrated a yield strength ranging from 518.7 MPa to 714.2 MPa, accompanied by an elongation ranging from 46.29 % to 50.48 %, thereby attaining a superior strength-ductility balance. Overall, grain refinement demonstrates a favorable synergistic effect on both mechanical properties and corrosion resistance.

引用

页数：15

共 88 条

[1] Correlating the five parameter grain boundary character distribution and the intergranular corrosion behaviour of a stainless steel using 3D orientation microscopy based on mechanical polishing serial sectioning [J].