7合金最明显的特征是比重小,其特有的比重大约是4。日本三菱重工业公司根据y合金的特点,认为它的工业应用最有前途的是用于涡轮盘部件中的旋转部件。例如可取代目前涡轮盘部件中的金属件。轻型旋转部件可以减少离心力,因此能产生较高的旋转速度和改善响应能力。此外,还能减少轴 7 alloy most obvious feature is the proportion of small, its specific gravity is about 4. Japan’s Mitsubishi Heavy Industries based on the characteristics of y alloy that its most promising industrial applications is used in the turbine disk components rotating parts. For example, metal parts in current turbine disk parts can be replaced. Light rotating parts reduce centrifugal forces, resulting in higher rotational speeds and improved responsiveness. In addition, the shaft can be reduced