1999•Unpublished venueRequires access

Study of Laser Fusion Ni Alloy on the Surface of 2Cr13 Stainless Steel

Duan Hui-lin

Abstract

Structure of laser fusion Ni alloy on the surface of 2Cr13 S.S. is studied with scanning electron microscope, x-ray diffractor, xray spectral meter and microdurometer and effectiveness of heat treatment to Ni alloy structure and microhardness is analyzed. The resultshows that the Ni alloy layer can be divided into planar crystalline region, cell crystalline region and branching crystalline region from thelower to the upper. The microbardness of fusion layer after laser fusion Ni alloy layer is increased from 230HV to 500-700HV, the structure of Ni alloy layer after heat treatment is finer than that of before heat treatment, the microhardness is up to 850- 1 120HV.

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Key concepts: Alloy, Materials science, Indentation hardness, Fusion, Scanning electron microscope, Layer (electronics), Metallurgy, Laser