Effect of Tempering Process on Residual Stress in Hot Rolled Low Carbon Martensite High-Strength Steel Strip

Lin Sun; Zhi Yi Zhao; Xiao Zhen Yang; Run Dong Xue

doi:10.4028/www.scientific.net/AMR.690-693.222

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693Effect of Tempering Process on Residual Stress in...

Effect of Tempering Process on Residual Stress in Hot Rolled Low Carbon Martensite High-Strength Steel Strip

Abstract:

Distribution of residual stress in hot rolled low carbon martensite high-strength steel strip was measured by means of blind-hole method in the steel before and after tempering. The hot rolled low carbon martensite high-strength steel strip was tempered at 450°C, 500°C, 550°C or 600°C. Before tempering, the value of the residual stress along the width direction is maximum at the edge, intermediate at the center, minimum at the 1/4 of the strip. The figure of the residual stress distribution along the width direction is like the shape of the letter M. Residual stress of the strip is reduced after tempering. When tempering at 450°C or 500°C, evolution of residual stress is caused by changes of thermal stress. Distribution of residual stress becomes gentle. With tempering temperature increasing, distribution of residual stress is reversed, because evolution of thermal stress and phase transition stress changes in different time.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

222-226

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.222

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Online since:

May 2013

Authors:

Lin Sun, Zhi Yi Zhao, Xiao Zhen Yang, Run Dong Xue

Keywords:

High Strength Steel (HSS), Martensite, Residual Stress, Tempering Process

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