Premium
Microstructure Defects Contributing to the Energy Absorption in Cr M n N i TRIP Steels
Author(s) -
Borisova Daria,
Klemm Volker,
Martin Stefan,
Wolf Steffen,
Rafaja David
Publication year - 2013
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201200327
Subject(s) - materials science , microstructure , stacking fault energy , nucleation , stacking fault , crystallography , transmission electron microscopy , austenite , dislocation , twip , high resolution transmission electron microscopy , shearing (physics) , composite material , nanotechnology , chemistry , organic chemistry
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 α′‐ 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.