Cermet powder, protective-coating-coated member and method of producing same, and electroplating-bath-immersed roll and method of producing same
AssigneesJfe Steel Corporation, Tocalo Co., Ltd.
InventorsYuya BABA, Junichi TAKEUCHI, Yoshifumi KOBAYASHI
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Abstract
Disclosed is a cermet powder that enables preparation of a cermet coating having both high wear resistance and high corrosion resistance against a strong acid having a pH of less than 1. The disclosed cermet powder contains tungsten carbide particles in an amount of 40 mass % or more; molybdenum carbide particles in an amount of 10 mass % to 40 mass %; and Ni or a Ni alloy as a matrix metal, wherein the cermet powder further contains chromium, either as a carbide or a metal or alloy element contained in the matrix metal, in an amount of 8 mass % or more.
Claims15
A cermet powder containing:
- tungsten carbide particles in an amount of 40 mass % or more;
- molybdenum carbide particles in an amount of 10 mass % to 40 mass %;
- and
- Ni or a Ni alloy as a matrix metal, wherein
- the cermet powder further contains chromium, either as a carbide or a metal or alloy element contained in the matrix metal, in an amount of 8 mass % or more.
A protective-coating-coated member comprising:
- a stainless steel base member;
- and
- a cermet coating formed on the stainless steel base member, wherein
- the cermet coating comprises a matrix made of Ni or a Ni alloy, in which tungsten carbide particles and molybdenum carbide particles are dispersed, and
- the cermet coating contains the tungsten carbide particles in an amount of 40 mass % or more, the molybdenum carbide particles in an amount of 10 mass % to 40 mass %, and chromium, either as a carbide or a metal or alloy element contained in the matrix, in an amount of 8 mass % or more.
Dependencies are inferred from the claim text.