Effect of hot deformation process on flow stress and microstructure of sulfur-containing non-quenched and tempered steel

doi:10.13251/j.issn.0254-6051.2020.07.004

Abstract

Abstract: Single-pass compression tests of sulfur-containing non-quenched and tempered steel were done at 950-1150 ℃ with strain rate of 0.01-5 s^-1by Gleeble-3500 thermal simulation machine. Effect of hot deformation process on the flow stress and microstructure was studied. The results show that the peak stress during hot compression increases with the increase of strain rate and decreases with the increase of temperature, the average grain size of dynamic recrystallization decreases with the increase of strain rate and deformation amount, and increases with the increase of temperature.

Key words: non-quenched and tempered steel, hot deformation, constitutive equation, dynamic recrystallization

CLC Number:

TG142.1⁺4

Xie Jianfeng, Wu Xiaodong, Luo Rui, Wang Lianjin. Effect of hot deformation process on flow stress and microstructure of sulfur-containing non-quenched and tempered steel[J]. Heat Treatment of Metals, 2020, 45(7): 17-22.

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