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 it comprises a first element selected from W and Mo, a second element selected from Co, Ni and Fe, a third element selected from C and B and a third element selected from Al and Mg 4 element as a constituent element and a second element in an amount of 20 mol% or more. The molar ratio of the fourth element to the second element in the use powder is 0.05 or more and 0.5 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 intensity 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 the maximum peak intensity appearing on the same X-ray diffraction spectrum.