Effect of Ni on the Stability of Retained Austenite and Mechanical Properties for TRIP Steels Containing Vanadium

被引：10
作者：
Zhu, Naqiong [1 ]
Wu, Qihao [1 ]
He, Yanlin [1 ]
Lu, Xiaogang [1 ]
Li, Lin [1 ]
Hu, Pengfei [2 ]
机构：
[1] Shanghai Univ, Dept Mat Sci & Engn, Shanghai 200072, Peoples R China
[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
来源：
STEEL RESEARCH INTERNATIONAL | 2014年 / 85卷 / 02期
基金：
中国国家自然科学基金;
关键词：
TRIP steel; stability of retained austenite; XRD; VC precipitates; TRANSFORMATION BEHAVIOR; PRECIPITATED AUSTENITE; DUCTILITY ENHANCEMENT; TENSILE PROPERTIES; TOUGHNESS; CARBON; DIFFRACTION; SYNCHROTRON; FRACTION;
D O I：
10.1002/srin.201300098
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Two V-Ni microalloyed transformation-induced plasticity (TRIP) steels with different Ni content were designed and investigated. Transformed volume fraction of retained austenite as a function of tensile strain was measured using an X-ray stress apparatus aided by microelectronic universal testing machine and the evaluation of the stability of retained austenite was conducted. Precipitation of carbides during bainitic isothermal transformation was investigated using the technique of carbon extraction replica and transmission electron microscopy. X-ray diffraction was used to determine the volume fraction of retained austenite and its carbon content. In the present work, the effect of Ni addition on the stability of retained austenite and mechanical properties for TRIP steels was detailed.
引用
收藏
页码：143 / 154
页数：12
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