Influence of Original Structure on Microstructure and Properties of 35CrMo Steel after Zero Time Holding Quenching

Abstract:

The pretreatment process is quenching and normalizing, respectively. Influence of different original structures on tensile strength and hardness is investigated. The experimental results show that the as quenched 35CrMo steel by zero time holding quenching obtains fine lath martensite structure and has higher tensile strength and hardness. The mechanical properties of the as quenched 35CrMo steel is better than that of the as normalized 35CrMo steel. The effect of original structure on the mechanical properties of 35CrMo steel is prominent when the zero time holding quenching temperature is lower, but it decreases with the quenching temperature increasing. The austenite inverse transformation zero time holding quenched at low temperature can improve the mechanical properties of 35CrMo steel.

• Periodical: Advanced Materials Research (Volumes 472-475)
• Pages: 978-981
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.472-475.978
• Online since: February 2012
• Authors: An Ming Li, Meng Juan Hu
• Keywords: Hardness, Original Structure, Quenching, Tensile Strength, Zero Time Holding

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