CERMET COATING, SPRAYING PARTICLES FOR FORMING SAME, METHOD FOR FORMING CERMET COATING, AND COATED ARTICLE
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Nov 26, 2010
filing date -
Nov 27, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a cermet coating that can take advantage of the hardness of a powder for a hard reinforcement phase more effectively, and spraying particles for forming the cermet coating. The cermet coating is formed on a base surface and has a hard reinforcement phase and a binder phase. The cermet coating has a Vickers hardness of from 50% to less than 100% of the hardness of the powder for a hard reinforcement phase, and has a surface roughness (center-line average roughness Ra) of less than 3.0. The cermet coating is formed by heating spraying particles prepared as aggregates of a powder for a hard reinforcement phase and a powder for a binder phase, and applying the spraying particles to a base at a supersonic velocity to integrate the powder for a hard reinforcement phase with the powder for a binder phase.
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