Abstract
The effect of in-situ Co3Fe7 particles formed by laser cladding on the mechanical properties and magnetic properties of coatings are investigated. YCF102 alloy powder is selected and mixed with different content of cobalt, and each mixed powder is laser cladded on the AISI1045 substrate. The main phase composition of coating with different cobalt content are revealed. The microhardness and wear resistance of each sample are analyzed, and the wear mechanism of each sample are researched. Meanwhile, the magnetic properties of each sample are analyzed and researched. The results show that Co3Fe7 particles are formed in-situ in the YCF102 coating with different cobalt content, and the microhardness and average friction coefficient do not change monotonously with the increase of cobalt content. When the cobalt content is 10wt%, the coating has excellent mechanical properties. In addition, due to the appearance of soft magnetic phase Co3Fe7 and grain size effect, the saturation magnetization and initial permeability present a tendency to first decrease and then increase, and the coercivity shows a trend of increasing and then decreasing.
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