Tailoring the deformation behaviour of a medium Mn steel through isothermal intercritical annealing

被引：11
|
作者：
Xu, X. [1 ,3 ,4 ]
Kwok, T. W. J. [1 ]
Gong, P. [2 ]
Dye, D. [1 ]
机构：
[1] Imperial Coll London, Royal Sch Mines, Dept Mat, Prince Consort Rd, London SW7 2BP, England
[2] Univ Sheffield, Dept Mat Sci & Engn, Sheffield S10 2TN, England
[3] Sun Yat Sen Univ Shenzhen, Sch Mat, Shenzhen 519000, Peoples R China
[4] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China
来源：
MATERIALIA | 2022年 / 22卷
基金：
英国工程与自然科学研究理事会;
关键词：
TENSILE BEHAVIOR; AUSTENITE STABILITY; RETAINED AUSTENITE; TRANSFORMATION BEHAVIOR; HIGH-STRENGTH; TRIP; MARTENSITE; MICROSTRUCTURE; TEMPERATURE; FERRITE;
D O I：
10.1016/j.mtla.2022.101422
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel concept of varying the strain hardening rate of a medium Mn steel with 8 wt.% Mn by varying the duration of the intercritical anneal after hot rolling was explored. It was found that the stability of the austenite phase showed an inverse square root relationship with intercritical annealing duration and that the maximum strain hardening rate showed a linear relationship with austenite stability. The change in austenite stability was attributed to continuous Mn enrichment with increasing intercritical annealing duration. Twinned martensite was also found to be the most likely product of the martensitic transformation during deformation.
引用
收藏
页数：8
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