Engineering Heterogeneous Multiphase Microstructure by Austenite Reverted Transformation Coupled with Ferrite Transformation

被引：13
作者：
Liu, L. [1 ,2 ]
He, B. B. [1 ,2 ]
Huang, M. X. [1 ,2 ]
机构：
[1] Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China
[2] Univ Hong Kong, Shenzhen Inst Res & Innovat, Shenzhen, Peoples R China
来源：
JOM | 2019年 / 71卷 / 04期
基金：
中国国家自然科学基金;
关键词：
TENSILE PROPERTIES; INDUCED PLASTICITY; MN STEEL; BEHAVIOR; TOUGHNESS;
D O I：
10.1007/s11837-019-03365-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A heterogeneous multiphase medium Mn steel (Fe-10Mn-0.47C-2Al-0.7V, wt.%) consisting of prior austenite, martensite, reverted austenite, and ferrite is, for the first time, realized by both austenite reverted transformation and ferrite transformation. The phase fraction, kinetics, mechanisms, and microstructure evolution during the transformation sequence are systematically investigated. The heterogeneous multiphase medium Mn steel has great potential for high strain hardening by a continuous transformation-induced plasticity effect, grain-size gradient, and stress-strain partitioning. The present work provides a new pathway to design a heterogeneous multiphase microstructure in medium Mn steel.
引用
收藏
页码：1322 / 1328
页数：7
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