Microstructure based modelling of stress-strain relationship on dual phase steels

被引：14

作者：

Cavusoglu, Onur ^{[1
]}

Toros, Serkan ^{[2
]}

Gurun, Hakan ^{[1
]}

机构：

[1] Gazi Univ, Dept Mfg Engn, Fac Technol, Ankara, Turkey

[2] Omer Halisdemir Univ, Dept Mech Engn, Fac Engn, Nigde, Turkey

来源：

IRONMAKING & STEELMAKING | 2019年 / 46卷 / 04期

关键词：

Microstructure modelling; representative volume element; dual phase; DP600; DP800; DP1000; TRIP STRIP STEELS; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; HIGH-STRENGTH; FAILURE INITIATION; MARTENSITE VOLUME; LOCALIZATION; PREDICTION; DUCTILITY; FRACTION;

D O I：

10.1080/03019233.2017.1371959

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The deformation in microstructures of DP600, DP800 and DP1000 commercial advanced high strength steels have been researched through using the representative volume element method. For this purpose, deformation analyses have been carried out by transferring geometrical models and mechanical properties of phases of each material to the finite element software. Deformation relation between ferrite and martensite phases was determined. According to the loading direction, Shear bands have been observed to occur in the range of approximately 40 degrees-45 degrees. It has been understood that the failure mode is shear for DP600, DP800 and DP1000 steels. Crack propagation has been observed to occur in the ferrite phase trapped at the martensite grain boundary.

引用

页码：313 / 319

页数：7

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