Dramatic Increase of Strength and Ductility in Fe-22Mn-1.0C Twinning-Induced Plasticity Steel at Elevated Temperature

被引：1
|
作者：
Yang, Hao Kun [1 ]
Tian, Yan Zhong [1 ]
Zhang, Zhe Feng [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Mat Fatigue & Fracture Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS | 2019年 / 21卷 / 03期
基金：
中国国家自然科学基金;
关键词：
ductility; dynamic strain aging (DSA); strength; temperature; twinning-induced plasticity (TWIP) steel; STACKING-FAULT ENERGY; DIFFERENT CARBON CONCENTRATIONS; FE-MN; TENSILE PROPERTIES; DEFORMATION; STRAIN; BEHAVIOR; MICROSTRUCTURE; MECHANISMS; DEPENDENCE;
D O I：
10.1002/adem.201800670
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Tensile properties and microstructural evolutions of Fe-22Mn-1.0C (wt%) twinning-induced plasticity steel are investigated in the temperature range from 293 to 443K. An unexpected enhancement of strength and ductility is observed at the elevated temperature of 443K (approximate to 400MPa ultimate tensile strength and approximate to 10% true strain improvements). The twinning capability is still kept stable with the increasing temperature, and the premature fracture is postponed by suppressing dynamic strain aging effect. As a result, the synchronous improvement of strength and plasticity is achieved at high deformation temperature.
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页数：6
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