Inspection of Adiabatic Shear Bands in High Manganese TRIP Steels

Hui Zhen Wang; Xiu Rong Sun; Ping Yang; Wei Min Mao

doi:10.4028/www.scientific.net/MSF.753.72

Paper Titles

Microstructure Development in Single and Double-Pass Friction Stir Processing of Aluminium
p.50

Orientation Dependence of the Substructure Characteristics in a Ni-30%Fe Austenitic Alloy Deformed in Hot Torsion
p.54

Evolution of Heterogeneous Deformation Structure and Recrystallization Texture of Steel
p.58

Microstructure Evolution and Softening Processes in Hot Deformed Austenitic and Duplex Stainless Steels
p.66

Inspection of Adiabatic Shear Bands in High Manganese TRIP Steels
p.72

Effect of Substructure Characteristics on the Dislocation Annihilation Process during Post-Deformation Annealing
p.76

A Comparison of Grain Boundary Character Distributions between Grain Boundary Engineered Austenitic Stainless Steel and Pb-Ca Based Alloy
p.83

The Relationship between Grain Boundary Energy, Grain Boundary Complexion Transitions, and Grain Size in Ca-Doped Yttria
p.87

An Alternative Method of Grain Boundary Characterization
p.93

HomeMaterials Science ForumMaterials Science Forum Vol. 753Inspection of Adiabatic Shear Bands in High...

Inspection of Adiabatic Shear Bands in High Manganese TRIP Steels

Abstract:

Adiabatic shear bands (ASBs) develop generally during high strain rates. This paper investigates the transformation induced plasticity (TRIP) effect during ASBs formation at high strain rates in high manganese TRIP steels containing initial austenite and ferrite by EBSD technique. Results show that TRIP effect takes place mainly before the formation of ASBs. After ASBs formation, TRIP effect is strongly restricted by the size effect, the increase of stacking fault energy (SFE) and even inverse martensitic transformation due to the rise of temperature. The TRIP effect before ASBs formation contributes to the resistance of adiabatic shear failure. Dynamic recrystallization driven by subgrains rotation occurs within ASBs, and ultrafine grains often show strong shear textures with twin relationship owing to slip mechanism.