Enhanced Surface Hardness by Boron Diffusion in Martensitic Stainless Steel via Cathodic Reduction and Thermal Diffusion Based Boriding (CRTD-Bor)

G. Kartal Sireli; C. Yelkarasi; P. Ozkalafat; S. Timur; M. Urgen

doi:10.4028/www.scientific.net/AMM.719-720.25

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Fabrication and Photocatalytic Activity of Photocatalyst Coatings by Mechanical Coating Technique and the Oxidation at Relatively Low Temperatures
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Antibacterial Properties of Rose Bengal Immobilized in Polymer Supports
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Enhanced Surface Hardness by Boron Diffusion in Martensitic Stainless Steel via Cathodic Reduction and Thermal Diffusion Based Boriding (CRTD-Bor)
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 719-720Enhanced Surface Hardness by Boron Diffusion in...

Enhanced Surface Hardness by Boron Diffusion in Martensitic Stainless Steel via Cathodic Reduction and Thermal Diffusion Based Boriding (CRTD-Bor)

Abstract:

In this study, a developed new boriding method called as “Cathodic Reduction and Thermal Diffusion based Boriding” (CRTD-Bor) was applied to increase the surface hardness of 400 series steels. The cross-sectional examination of borided steel revealed that the boride layers consisted of single phase Fe₂B. A dense and continuously 25μm thick Fe₂B layer could be formed after 20 minutes of CRTD-Bor. The grown boride layer exhibited 1500±200 HV on top, and gradually decreased to the matrix (325 ± 25 HV).