Study on Anti-Stress Relaxation Behavior of Non-Quenched Steel

Abstract:

The cold draw MFT8 steels with different reduction in cross sectional areas were investigated to understand the effect of aging time on the anti-stress relaxation ability of non-quenched and tempered steel. The hardness and the anti-stress relaxation ability of cold draw NQT MFT8 steel was improved after aging at 300°Csince the precipitation of submicron particles within deformed ferrite. The cold draw NQT MFT8 becomes harder and more resistant to stress relaxation with increasing aging time. The cold draw MFT8 with both 25% and 30% reduction in cross sectional areas are stress relaxation resistant after aged at 300°C for 2 hours.

• Periodical: Advanced Materials Research (Volumes 785-786)
• Pages: 8-11
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.785-786.8
• Online since: September 2013
• Authors: Jin Hong Pi, Zhang Zhong Wang, Xiu Ming Zhao, Hai Feng Wu
• Keywords: Aging, Non Quenched and Tempered Steel, Stress Relaxation

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