[J] JIM-ISIJ Joint Session Materials science of martensitic and bainitic transformations and its applications(2)

[J41] Tensile Properties, Fatigue Crack Growth, and Fracture Toughness of a Thermo-mechanically Rolled and Direct Quenched and Partitioned (TMR-DQP) 0.4% C Steel.

*Gaurav Kumar¹, Sumit Ghosh², Sakari Pallaspuro², Mahesh　C. Somani², Jukka Kömi², Sushil　K. Mishra¹, Amol　A. Gokhale¹ (1. Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India、2. Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu, 90014, Oulun Yliopisto, Finland)

Keywords:Martensitic steel、Retained austenite、Austenite transformation、Fracture Toughness、Fatigue Crack Growth

Improved combination of mechanical properties of martensite-austenite Thermo-mechanically Rolled Direct Quenched and Partitioned Steel is presented compared to its fully martensitic counterpart.