Effect of intercritical annealing on the mechanical properties of dual-phase steel

被引：9
|
作者：
Ayres, James [1 ]
Penney, David [1 ]
Evans, Peter [2 ]
Underhill, Richard [2 ]
机构：
[1] Swansea Univ, Dept Mat, Bay Campus, Swansea SA1 8EN, W Glam, Wales
[2] Tata Steel UK, New Prod Dev, Port Talbot, Wales
来源：
IRONMAKING & STEELMAKING | 2022年 / 49卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
Materials; Steel; AHSS; dual phase; annealing; microstructure; mechanical properties; tensile testing; HOLDING TIME; MICROSTRUCTURE; TEMPERATURE; AUSTENITE;
D O I：
10.1080/03019233.2022.2062163
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A dual-phase steel chemistry has been processed with varying intercritical annealing temperatures and the properties investigated. It was found that increasing the temperature in the intercritical region led to an increase in the volume fraction (52%-65%) and grain size (1.8-3.3 mu m) of martensite whilst the volume fraction and grain size of ferrite decreased. The highest tensile strengths were found at low intercritical temperatures, achieving 935 MPa whilst the highest elongation values of 21% were achieved at the highest intercritical temperatures.
引用
收藏
页码：821 / 827
页数：7
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