腐蚀是燃气轮机涡轮叶片Y2O3稳定ZrO2(YSZ)热障涂层失效的主要原因.本文系统总结了YSZ热障涂层服役过程中面临的腐蚀环境:高温相变、烧结与氧化腐蚀,Na2SO4和V2Os熔盐腐蚀,以及熔融钙镁铝硅酸盐玻璃(CMAS)腐蚀.分析了YSZ热障涂层腐蚀机理,讨论了提高热障涂层抗腐蚀性能的理论和方法,指出了热障涂层抗腐蚀研究发展方向.
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