Effect of Tempering Process on Structure and Properties of Super Martensitic Stainless Steel

Abstract:

Two types of super martensitic stainless steels (Cr13 and Cr15) were designed. The effect of tempering process on their microstructure, mechanical properties and corrosion resistance was studied. The results showed that the main microstructure of tested steels was tempered martensite and a small number of reversed austenite when specimens were tempered in temperature range of 550-750°C. The variation of mechanical properties corresponded to the austenite volume fraction well. Both the two types of steels displayed a favorable comprehensive mechanical properties after tempering at 650°C, their product of strength and elongation reached to 18.44GPa•% and 18.44 GPa•% respectively. With the best heat treatment process,tempered at 650°C after quenching at 1050°C,the corrosion resistance of 2# steel is more better than 1# steel.

• Periodical: Advanced Materials Research (Volumes 581-582)
• Pages: 1023-1026
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.581-582.1023
• Online since: October 2012
• Authors: Hu Dai Sun, Kun Yu Zhao, Jia Qun Rui, Wen Jiang, Xiao Chen Han, Qi Long Yong, Jie Su
• Keywords: Property, Structure, Super Martensitic Stainless Steel, Tempering Process

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