POWDER FOR THERMAL SPRAY THERMAL SPRAY COATING FILM COATING FILM AND ROLL IN MOLTEN METAL BATH

摘要

The usable powder of the present invention is characterized in that the first element selected from W and Mo, the second element selected from Co, Ni and Fe, the third element selected from C and B, and the fourth element composed of Si As a constituent element. The use powder contains the second element in an amount of 40 mol% or less. The molar ratio of the fourth element to the second element in the use powder is 0.002 or more and 0.03 or less. The powder for use has a crystalline phase containing Co, Ni or Fe, W and C, or a crystalline phase containing Co, Ni or Fe, W or Mo, The strength of the peak belonging to Co, Ni or Fe on the X-ray diffraction spectrum of the powder for use is 0.1 times or less of the peak intensity with the highest intensity in the peak appearing on the same X-ray diffraction spectrum.