Evolution of Microstructure in a Low-Si Micro-alloyed Steel Processed Through One-Step Quenching and Partitioning

被引：22
作者：
Bansal, G. K. [1 ,2 ]
Pradeep, M. [2 ]
Ghosh, Chiradeep [3 ]
Rajinikanth, V. [2 ]
Srivastava, V. C. [1 ,2 ]
Bhagat, A. N. [3 ]
Kundu, S. [1 ,3 ]
机构：
[1] CSIR Natl Met Lab, Acad Sci & Innovat Res, Jamshedpur 831007, Bihar, India
[2] CSIR Natl Met Lab, Mat Engn Div, Jamshedpur 831007, Bihar, India
[3] Tata Steel Ltd, Div Res & Dev, Jamshedpur 831001, Bihar, India
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2019年 / 50A卷 / 02期
关键词：
Q-AND-P; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; AUSTENITE; TEMPERATURE; MARTENSITE; CARBIDE; SILICON; TRANSFORMATION; BEHAVIOR;
D O I：
10.1007/s11661-018-5039-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An attempt has been made in the current study to investigate the possibility of austenite retention in 0.5 wtpct Si steel without Al, processed through the one-step Q&P technique. The XRD and microstructural analysis confirmed austenite retention (maximum of 5.73 +/- 0.16volpct), which showed thin film and blocky morphologies. The experimental amount of retained austenite was found to increase with the increasing quench temperature; however, it was almost independent of partitioning time. The carbon content in the retained austenite did not show any significant variation, after Q&P treatment for different time-temperature combinations. The hardness was found to be sensitive to quench temperature than the partitioning time.
引用
收藏
页码：547 / 555
页数：9
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