| 摘要 |
PURPOSE:To provide a heat resistant structure excellent in high temp. durability, obtained by forming a cerium oxide coating layer to the surface of a structure comprising a heat resistant alloy through a bonding layer. CONSTITUTION:An adequately selected heat resistant alloy (IN939 etc.) is formed into a structure having a predetermined shape and, if necessary, sand blast treatment is applied to the surface thereof and a bonding layer is formed thereto by a plasma spray method. The bonding layer is formed of an Ni-base alloy or a Co-base alloy and uniformly formed in a thickness of about 30-300mum. Subsequently, cerium oxide is uniformly applied in a thickness of about 50- 500mum to form a coating layer. |
