Transmission Electron Microscopic Observation of the Martensite Transformation in 304-Type Stainless Steel

In Situ Heating Neutron and X‐Ray Diffraction Analyses for Revealing Structural Evolution during Postprinting Treatments of Additive‐Manufactured 316L Stainless Steel

“…As representative OR, Kurdjumov–Sachs (K‐S) OR: {111} γ // {011} α′ and <> γ // <> α′ [ 50 ] and Nishiyama–Wasserman (N–W) OR: {111} γ // {011} α′ and <> γ // <> α′ [ 51 ] are experimentally determined and well accepted, where these < 111> orientations differ about 5 degrees and different habit planes of {225} for K‐S OR and {259} for N–W OR are reported for different steels. [ 50,52 ] Regarding the γ→ε martensitic transformation, [ 53 ] the arrays of Shockley partial dislocations, a /6 < 11>, into adjacent two {111} γ planes are required for the formation of h.c.p. cells.…”

Temperature Effect on Deformation Response in Austenitic Stainless Steel

“…Excellent plasticity of steels allows it to be used after cold plastic deformation to increase strength. In addition to the dislocation slip, the favorable physic-mechanical properties in austenitic steels are due to other factors, such as twinning, packing defects and deformation martensite phase [3][4][5][6]. In addition, the structural formation during deformation evolves in accordance with a crystalline size of the parent phase and the crystallographic orientation of crystals relative to the loading axis.…”

“…In spite of numerous works dedicated to the mechanisms of strain in austenitic steels [5][6][7][8][9][10], many aspects in this field of research remain still poorly understood. In particular, there is still a lack of understanding of the relationships between various plastic flow localization processes occurring upon deformation, as well as their kinetics, conditions and mechanisms of transitions.…”