Patent ID: 9284647
Filing Date: 2016-03-15
CPC Classification: B32B,C22C,C23C,F01D,F05D,Y02T,Y10T

Claim Text:
1. A high-temperature member having a sliding surface, wherein on the sliding surface a porous coating layer of a constituting material of an electrode for an electro-discharge surface treatment, or a reactant of the constituting material, is formed by the electro-discharge surface treatment in which the electrode is used to generate a pulsed electro-discharge between the electrode and the sliding surface, wherein the electrode is a green compact that includes the constituting material that includes (i) a first coating material that is a cobalt-based alloy comprising 10% or more of chromium, by weight, and does not include 20% or more of nickel, by weight, or (ii) a mixture of the first coating material and a second coating material, wherein the first coating material comprises the chromium that oxidizes at a high temperature environment of 700° C. or more to form Cr wherein the second coating material is a material selected from the group consisting of any one of, or a mixture of, cBN, TiC, TiN, TiAlN, TiB wherein the high-temperature member is a finished product.