本文论述了与小型燃气轮涡轮发动机零件的特定需要有关的材料和工艺问题,零件的成本控制取决于所使用的铸造技术和配件组合方法。一些新材料和新工艺最近才开始实用。本文从成本控制,正常及高温情况下改进性能角度,对它们进行了论述。 This article addresses the material and process issues associated with the specific needs of small gas turbine turbine engine parts. The cost control of the parts depends on the casting technique and the combination of parts used. Some new materials and new techniques have only recently become practical. This article discusses them from the perspective of cost control, performance improvement at normal and high temperatures.