Improving the wear and corrosion resistance of martensitic stainless steel by paste boriding treatment

Abstract

Surface hardening techniques of steel are of great practical interest for applications in the petroleum industry. The boriding technique is one of the most economical choices. In this work, a paste boriding process is performed to increase the wear and corrosion resistance of AISI 410 martensitic stainless steel. The surface wear and corrosion resistance of the steel were significantly improved via the paste boriding treatment. The microstructure of the borided layer consists of FeB and Fe₂B, which are located in the external and internal layers of the borided layer, respectively. As the boriding temperature rises, the thickness of the borided layer increases, which at the same time leads to an increase in the number of voids.

KEYWORDS:

• Paste boriding
• AISI 410 martensitic stainless steel
• microstructure
• wear and corrosion resistance

Disclosure statement

No potential conflict of interest was reported by the author(s ).

Additional information

Funding

The authors would like to thank the Natural Science Foundation of the Jiangsu Higher Education Institutions of China [No. 22KJA460011] for the support.