MEMBER FOR CONVEYING HIGH-TEMPERATURE MATERIALS

摘要

Provided is a member for conveying high-temperature materials, which exhibits excellent build-up resistance, oxidation resistance, and heat crack resistance. Specifically provided is a member for conveying high-temperature materials, which has a coating on the surface of a base metal, said coating being a composite coating formed by a plasma build up spraying method using a mixed powder consisting of both a Co-base alloy powder that comprises, by mass, 0.03 to 0.6% of C, 0.2 to 3% of Si, 22 to 35% of Cr, and more than 50% of Co, and a Cr carbide powder. The member exhibits excellent build-up resistance, particularly in a gaseous atmosphere having a temperature of 1100°C or higher.