| 摘要 |
PURPOSE: To provide the thermal spraying material excellent in the wear resistance, the high temperature characteristic, and the reliability of the film by solidifying the molten alloy containing C and Cr of the prescribed amount in Fe, and pulverizing the solidified alloy. CONSTITUTION: After the molten alloy having the composition consisting of, by weight, 3-7% C, 20-60% Cr, and the balance Fe with inevitable impurities is solidified and pulverized to form the powder of the wear resistant thermal spraying material. The particles are obtained in the condition where the M7 C3 type carbide and the matrix are grown relatively large, and the cermet film of the M7 C3 type carbide and the matrix is formed by the irradiation. The grain size of the pulverized powder is preferably <=55μm from the viewpoint of denseness, of the film, and more preferably the grain size is >=10μm from the viewpoint of the transportation.
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