Microstructure Defects Contributing to the Energy Absorption in CrMnNi TRIP Steels

被引：29

作者：

Borisova, Daria ^{[1
]}

Klemm, Volker ^{[1
]}

Martin, Stefan ^{[1
]}

Wolf, Steffen ^{[2
]}

Rafaja, David ^{[1
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Mat Sci, D-09596 Freiberg, Germany

[2] Tech Univ Bergakad Freiberg, Inst Mat Engn, D-09596 Freiberg, Germany

来源：

ADVANCED ENGINEERING MATERIALS | 2013年 / 15卷 / 07期

关键词：

AUSTENITIC STAINLESS-STEELS; DEFORMATION MICROSTRUCTURE; INDUCED MARTENSITE; ELECTRON-STRUCTURE; TRIP/TWIP STEELS; STRAIN-RATE; DISLOCATIONS; MECHANISM; STRESS; IRON;

D O I：

10.1002/adem.201200327

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructure defects control the TRIP effect and/or the TWIP effect and contribute significantly to the absorption of deformation energy in plastically deformed austenitic CrMnNi steels. In this study, the propagation and interaction of dislocations, stacking faults and twins connected with the formation of Lomer-Cottrell locks, stacking fault tetrahedra, dislocation clusters, deformation bands, microtwins with high-energy incoherent twin boundaries and the nucleation of - martensite in the areas of the high local lattice strain due to the fluctuation of the stacking fault density and the lattice shearing, were analysed in the CrMnNi TRIP steel after different deformation extents via transmission electron microscope with high resolution and via scanning electron microscope.

引用

页码：571 / 582

页数：12

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