Revealing heterogeneous C partitioning in a medium Mn steel by nanoindentation

被引：8
作者：
He, B. B. [1 ,2 ]
Huang, M. X. [1 ,2 ]
机构：
[1] Univ Hong Kong, Shenzhen Inst Res & Innovat, Shenzhen, Peoples R China
[2] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2017年 / 33卷 / 05期
基金：
美国国家科学基金会; 中国国家自然科学基金;
关键词：
Martensite; Austenite; Nanohardness; Medium Mn steel; Quenching and partitioning; TRANSFORMATION-INDUCED PLASTICITY; MECHANICAL-PROPERTIES; TEMPERING PROCESS; LATH MARTENSITE; CARBON STEEL; AUSTENITE; DEFORMATION; STRENGTH; TEMPERATURE; MORPHOLOGY;
D O I：
10.1080/02670836.2016.1232980
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present work employs nano-indentation technique to investigate the C partitioning in a medium Mn steel subjected to quenching and tempering process. It is found that the C partitioning between martensite and austenite is inhomogeneous. Particularly, the large lenticular martensite has negligible C partitioning into the austenitic matrix as it maintains an ultra-high nanohardness comparable to the one without tempering. Strategies to suppress the formation of large martensite are discussed.
引用
收藏
页码：552 / 558
页数：7
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