Investigation of the corrosion resistance and hardness of 316L steel with reduced graphene oxide/boron carbide/titanium carbide coating deposited by laser method

Khosravi, Mohammad; Yaghoubinezhad, Yadollah; Roghani, Mohammad

doi:10.22034/stme.2025.540373.1157

Investigation of the corrosion resistance and hardness of 316L steel with reduced graphene oxide/boron carbide/titanium carbide coating deposited by laser method

Articles in Press

Document Type : Original Article

Authors

Mohammad Khosravi ¹

Yadollah Yaghoubinezhad ¹

Mohammad Roghani ²

¹ Birjand University of Technology, Birjand, Iran

² Birjand University of Technology, , Birjand, Iran

10.22034/stme.2025.540373.1157

Abstract

In this study, using titanium (Ti), boron carbide (B4C) and reduced graphene oxide (RGO) powder precursors, a corrosion and wear resistant coating was created on 316L stainless steel alloy by laser method and its surface interaction properties were investigated. In this regard, initial tablets were made using reduced graphene oxide with percentages of 0.5, 1 and 3. The results showed that coating the surface of 316L steel alloy with Ti+B4C+1%RGO powder mixture can increase the corrosion resistance value up to 21 times compared to the 316L steel substrate and the surface hardness up to 2 times. Field emission scanning electron microscopy (FE-SEM) images showed that reduced graphene oxide nanosheets were effectively dispersed on the surface and titanium carbide TiC phase was formed on the surface after laser process. The deposition of a coating containing reduced graphene oxide nanosheets in a titanium matrix with a thickness between 2.545 - 2.37 μm on the surface of 316L steel has been identified as one of the most important reasons for increasing the surface properties of this alloy. The results of this research can enhance the scope of use of 316L steel in corrosion resistance and hardness applications.

Keywords

Reduced graphene oxide

titanium

boron carbide

coating

corrosion

Subjects