Effect of Plastic Deformation at Room Temperature on Powder RE-Chrome-Boronizing for Medium Carbon Steel

Abstract:

In order to increase boronizing speed without decreasing the hardness of boride layer, the effect of plastic deformation at room temperature on powder RE-chrome-boronizing for a medium carbon steel (steel 45), in which boronizing plays a main role, was studied in this paper. The cold plastic deformation (CPD), whether compressing or shot-peening, can increase boronizing speed. Meanwhile, the boride layer can also retain its high microhardness (1 300―1 900HV0.1) with low brittleness. The layer depth achieved for a given heating time increases with increasing CPD degree on the steel. The analyses show that boronizing kinetics in the RE-chrome-boronizing (RE-Cr-B) samples with CPD can be enhanced.

• Periodical: Key Engineering Materials (Volumes 353-358)
• Pages: 575-578
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.353-358.575
• Online since: September 2007
• Authors: Bin Xu, Le Yang, Shi Bo Xing, Li Li
• Keywords: Brittleness, Cold Plastic Deformation, Hardness, Layer Depth, RE-Chrome-Boronizing

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