Hot Deformation Behavior of Nano-Precipitation Strengthening Steel

Abstract:

The hot deformation behavior of nanoprecipitation strengthening steel was studied using a Gleeble-3500 thermo-mechanical simulator. The results show that the peak stress reduces as the temperature increases, and increases as the strain rate increases. The dynamic recrystallization will more likely occur at higher deformation temperature and lower strain rate. The deformation activation energy of the tested steel at 950-1150^οC is calculated to be 333.844kJ/mol by regression analysis. Flow stress equation of the tested steel is also established.

• Periodical: Advanced Materials Research (Volumes 1120-1121)
• Pages: 951-957
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.951
• Online since: July 2015
• Authors: Yan Zhu, Hong Tao Li, Mei Zhang*, Yong Zhong, Lin Li
• Keywords: Deformation Activation Energy, Dynamic Recrystallization, Flow Stress Equation, Nano-Precipitation High Strength Steel

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