| 摘要 |
To protect a base metal layer ( 1 ) against high-temperature corrosion and high-temperature erosion, an adhesive layer ( 3 ) based on MCrAlY is applied to the base metal layer ( 1 ). The adhesive layer ( 3 ) is coated with an Al diffusion layer ( 4 ) by alitizing. The diffusion layer ( 4 ) is subjected to an abrasive treatment, so that the outer built-up layer ( 4.2 ) on the diffusion layer ( 4 ) prepared by alitizing is removed by the abrasive treatment. A ceramic heat insulation layer ( 2 ) consisting of zirconium oxide, which is partially stabilized by yttrium oxide, is applied to the diffusion layer ( 4 ) thus treated.
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