Studies on softening kinetics of niobium microalloyed steel using stress relaxation technique

Frontiers of Materials Science in China - Tập 4 - Trang 197-201 - 2010
Cheng-Liang Miao1, Cheng-Jia Shang1, Guo-Dong Zhang1, Guo-Hui Zhu2, Hatem Zurob3, Sundaresa Subramanian3
1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
2School of Materials Science and Engineering, Anhui University of Technology, Maanshan, China
3Department of Materials Science and Engineering, McMaster University, Hamilton, Canada

Tóm tắt

Stress relaxation was studied in a series of low carbon, high Mn microalloyed steels containing 0.012 wt.%, 0.06 wt.% and 0.1 wt.% Nb. The stress-relaxation curves were modeled using a physically-based model that takes into account the time evolution of precipitation, recovery and recrystallization as well as their interactions. The results confirm that the high Mn, high Nb design can offer distinct advantage over the low Mn design for the application of near-net shape processing.

Tài liệu tham khảo

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