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为满足更大的燃气轮机效率、更高的燃烧温度和更大的叶片应力增长的要求 ,根据设计标准 ,透平叶片正变得愈加复杂 ,叶片材料也更加高级。比如“H”级燃气轮机的第一级叶片由单晶超级合金制成 ,并实施了掺钇加稳的氧化锆陶瓷热障涂层保护。后三级叶片则采用了定向固化超级合金材
To meet the demands of greater gas turbine efficiency, higher combustion temperatures and greater blade stress growth, turbine blades are becoming more sophisticated and the blade material is more advanced by design standards. For example, the first stage blades of “H” class gas turbines are made of single-crystal superalloy and are protected by a yttrium-doped stabilized zirconia ceramic thermal barrier coating. After the three leaves are used directional curing super alloy