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借助于电子显微镜，对不同成份的高铬耐磨堆焊金属的显微组织进行了对比分析。结果表明，堆焊层中高硬度的碳化物Cr7C3在α－Fe基体上呈粒状且均匀分布时，其耐磨性优于碳化物Cr7C3在γ－Fe基体上呈粗大板条状且分布不均匀的情况。
By means of electron microscope, the microstructures of high-chromium hardfacing metals with different compositions were compared and analyzed. The results show that the wear resistance of Cr7C3 carbide with high hardness on the α-Fe matrix is better than that of the Cr7C3 carbide matrix on the γ-Fe matrix, and the distribution is not uniform Happening.