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Meeting MS&T23: Materials Science & Technology
Symposium Advances in Understanding of Martensite in Steels II
Presentation Title Geometrical Aspect of Variant-pairing of Martensite in Steel
Author(s) Tomonari Inamura, Nozomi Takahashi, Yuri Shinohara, Yasuaki Tanaka, Hiroyuki Kawata
On-Site Speaker (Planned) Tomonari Inamura
Abstract Scope The geometrical compatibility between martensitic plates is analyzed theoretically and compared with experimental results on the frequency of variant-pairing in the four morphologies: thin-plate, lens, butterfly and lath. The martensitic microstructure is formed by pairing of martensite plates. The crystallographic character of a single martensitic plate is explained by the phenomenological theory of martensite crystallography, which considers the interface between the parent and martensite to be geometrically compatible. It has been shown in the thermoelastic martensite of shape memory alloys that the pairing of martensitic plates is also governed by the compatibility at the junction plane between the plates. An interesting result in steel is that butterfly-type pairing appears even in the early stage of transformation in all four morphologies, despite low compatibility. The universal character of the four morphologies of martensite is discussed in terms of geometrical compatibility of variant-pairing.


Achieving 1.4 GPa Tensile Strength with Good Ductility in a Novel Low-alloy Low-carbon Martensite Steel
Effect of Thermomechanical Strategy and Ni-Mo Alloying on High Strength Quenched and Tempered Thick Plates
Evolution of Dislocation Structure during Plastic Deformation in Lath Martensite of Low-Carbon Steel Observed by ECCI
Excess Solute Carbon and Retained Tetragonality in Autotempered and Tempered Fe-C Lath Martensite
Geometrical Aspect of Variant-pairing of Martensite in Steel
In-situ Neutron Diffraction Analysis of Deformation-induced Transformation Behavior in High-strength and High-ductility Metastable Austenitic Stainless Steel Produced by Cold-rolling and Partitioning Method
Influence of Strain Rate on Mechanical Behavior and Microstructure Evolution of Fe-0.10C-5Mn Medium Manganese Steel
Investigation on Gigapascal Martensitic Microstructures for Higher Bendability of Advanced High-strength Hot Stamped Steel
Low Temperature Martensitic Transformations in Fe-Ni Alloys: Insight from Iron Meteorite Analyses
Phase Field Study of Tempering in Maraging Steels
Substructure and Crystallographic Features of As-quenched Lath Martensitic Steels
Substructure Boundary Sliding in Lath Martensite Quantitatively Investigated by Using Molecular Dynamics (MD) Simulation and Experiment

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