Open AccessMicrostructure analysis of surface coating of graphene modified Cr12MoV die steel by induction cladding
Author(s) -
Heping Li,
Cheng Shaolei,
Langlang Liu,
Sun Fenger
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/733/1/012029
Subject(s) - materials science , coating , microstructure , cladding (metalworking) , scanning electron microscope , composite material , graphene , metallurgy , indentation hardness , nanotechnology
In this work, 316 stainless steel powder was used as base powder and graphene was selected as reinforcer. A stainless steel graphene composite coating was successfully prepared by induction cladding on the surface of cold working die steel Cr12MoV. The effects of different coating processes on the microstructure of the coating were investigated by metallographic microscope and scanning electron microscopy. The experimental results show that the bond strength of the coating and the mold steel substrate is perfect. No significant oxides are present in the grain boundaries. With the raise of induced current, the surface hardness of the composite coating increases gradually. In addition, with the increase of graphene content, the surface hardness of the coating also shows the same upward trend.