The self-fluxing alloy spraying membrane null 40.0 mass which can making use of the Ni basic self-fluxing alloy powder and its production manner and the said

摘要

PROBLEM TO BE SOLVED: To provide Ni-based self-fluxing alloy powder having hardness at high temperature as the index of heat resistance (high temperature hardness) as well as hardness at room temperature (room temperature hardness), wear resistance and thermal impact resistance (thermal cycle resistance), to provide its production method, and to provide a self-fluxing alloy sprayed coating.;SOLUTION: The Ni-based self-fluxing alloy powder for thermal spraying is composed of an Ni-based self-fluxing alloy comprising Cr, C and Co, and in which chromium carbides with a particle diameter of ≤5 μm are uniformly precipitated into the particles. The alloy powder contains, by mass, 30.0 to 65.0% Cr, 1.0 to 4.5% C, 5.0 to 20.0% Co, 0.5 to 4.0% Si, 0.5 to 4.0% B and 0.5 to 4.0% Mo, selectively comprises 0 to 5.0% Fe, and the balance Ni with inevitable impurities. Further, the powder is sorted in a grain size range of 45 to 106 μm.;COPYRIGHT: (C)2008,JPO&INPIT