Influence of Tempering Temperature on Microstructure and Mechanical Properties of 35CrMnSiMo Cast Steel

Abstract:

The tempering temperature on microstructure and mechanical properties of 35CrMnSiMo cast steel are studies in this article. Results showed that 880°C×30min 35CrMnSiMo cast steel after quenching water, hardness up to 49.6HRC, reached 39.04 J/cm² toughness. Tempering temperature selected 200°C, 400°C and 600°C, respectively with the increase of the tempering temperature plummeting hardness and impact toughness are on the rise, but at 400°Cdecreased. Photos can be seen from your organization after quenching, which contains a lot of lath martensite, a small amount of lump some residual austenite and martensite, 200°C tempering martensite has been reduced, some of carbide precipitation into tempered martensite. Tempering of martensite quenching slats or flake, it is made of flake martensite and small ξ carbide distribution.

• Periodical: Advanced Materials Research (Volumes 791-793)
• Pages: 431-434
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.791-793.431
• Online since: September 2013
• Authors: Hong Bo Li, Han Chi Cheng, Jing Wang, Chun Jie Li, Xing Jun Su
• Keywords: Mechanical Property, Microstructure, Tempering Temperature

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