Effect of rolling and epitaxial ferrite on the tensile properties of low alloy steel

被引：10

作者：

Ahmad, E. ^{[1
]}

Sarwar, M. ^{[1
]}

Manzoor, T. ^{[1
]}

Hussain, N. ^{[1
]}

机构：

[1] PINSTECH, Nucl Mat Div, Islamabad, Pakistan

来源：

JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 17期

关键词：

D O I：

10.1007/s10853-006-0266-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A low alloy steel containing 0.09% C was thermomechanically processed at the intercritical annealing temperature of 790 degrees C to produce dual-phase microstructure from 50% of austenite. After applying different rolling reductions at this temperature, the specimens were quenched in boiling water to promote the growth of epitaxial ferrite. Warm rolling at 790 degrees C decreased the hardenability of austenite due to increased in interfacial area of austenite and ferrite. Tensile strength was improved by increasing the rolling reductions both in longitudinal and transverse directions without any significant loss in ductility attributed to the presence of epitaxial ferrite. Microvoid formation in the necked region and their percentage area fraction was measured. The correlation between the area fractions of microvoids formation with strain in the necked region ultimately defined the mode of failure.

引用

页码：5417 / 5423

页数：7

共 15 条

[1] Effect of microvoid formation on the tensile properties of dual-phase steel [J].