Effect of Temperature on the Mechanical Properties and Deformation Mechanism of a High Mn Steel With Composite Structure
oleh: Xiaoman Chen, Xiaoman Chen, Yuhui Wang, Yuhui Wang, Yuhui Wang, Jianchao Xiong, Jianchao Xiong, Guoyang Li, Guoyang Li, Yanzhong Tian, Wenquan Cao, Tiansheng Wang, Tiansheng Wang
| Format: | Article |
|---|---|
| Diterbitkan: | Frontiers Media S.A. 2020-03-01 |
Deskripsi
A composite high manganese structure comprising recovered and recrystallized structures was prepared using a single-phase austenitic Fe-30Mn-0.14C-7Cr-0.26Ni steel by cold rolling and annealing. The yield strength and elongation of the composite increased simultaneously, when the tensile temperature decreased from room temperature (RT) to low temperature (−180°C). The composite structure exhibited a good combination of strength and ductility at RT and −180°C. The notable mechanical properties at low temperature can be attributed to the enhanced strain-hardening capability via introducing multiple deformation mechanisms in the composite structure.