Effect of Processing Parameters on Microstructure and Performance of Fe-based Coating Formed by Plasma Jet Surface Metallurgy
The Fe-based composite coatings on Q235 steel substrate were formed by plasma jet surface metallurgy.The effect of processing parameters(such as working current and scanning speed etc) on coating properties was researched.The results show that the parameters have great effect on microstructure and microhardness of the coatings.In the guarantee of the forming good metallurgical combination between coating and substrate,increasing scanning speed or decreasing working current will profit the refinement of the coating structure.