[J] JIMM-ISIJ Joint Session Materials science of martensitic and bainitic transformations and its applications

1:00 PM - 1:20 PM JST(4:00 AM - 4:20 AM UTC)

[J20] In-situ Characterization of Distributed Plastic Deformation Promoted by Low-Temperature Tempering in Lath Martensite

○Shuang Gong¹, Junya Inoue¹ (1. UTokyo)

Keywords:

Lath martensite,Low-temperature tempering,HR-DIC,In-situ ECCI,Cementite

Low-temperature tempering improves martensitic steel plasticity, but its effect on local deformation remains unclear. Using HR-DIC, EBSD, and in-situ ECCI, this study shows that tempering promotes homogeneous strain distribution and that cementite regulates local boundary-mediated deformation.