Superior strain-hardening by deformation-induced nano-HCP martensite in Fe-Mn-Si-C high-manganese steel

被引：19

作者：

Xiong, Renlong ^{[1
,3
]}

Peng, Huabei ^{[2
]}

Zhang, Tuanwei ^{[3
]}

Bae, Jae Wung ^{[3
]}

Kim, Hyoung Seop ^{[3
]}

Wen, Yuhua ^{[2
]}

机构：

[1] Wuhan Inst Technol, Sch Mech & Elect Engn, Wuhan 430205, Peoples R China

[2] Sichuan Univ, Sch Mech Engn, Chengdu 610065, Peoples R China

[3] POSTECH Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 37673, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2021年 / 824卷 / 824期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

High-manganese steel; Strain-hardening; Crystallography; Mechanical twinning; Deformation-induced HCP martensite; STACKING-FAULT ENERGY; INDUCED PLASTICITY STEELS; CARBON CONTENT; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; HIGH-STRENGTH; TRANSFORMATION; AL; MICROSTRUCTURE; EVOLUTION;

D O I：

10.1016/j.msea.2021.141864

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We propose that high strain-hardening in face-centered cubic (FCC) crystals containing interstitial atoms could be achieved through the formation of nanoscale hexagonal close-packed (HCP) martensite with severe lattice distortions. Our experimental results showed that carbon atoms could more effectively prevent the HCP martensite from thickening and result in the formation of nano-HCP martensite. This caused a higher strainhardening rate in FeMnSiC steel with heavy carbon than in FeMnSiCrNi steel with trace carbon though the HCP martensite transformation kinetics was almost the same in these two steels.

引用

页数：6

共 16 条

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Xiong, Renlong
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Xuefei Huang
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