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高温合金的应用已越来越显得引人注目。以近代先进喷气机为例,它的特点是高速、低燃料消耗、有效载荷大、易于维修。对材料的要求在高温、高应力及燃气腐蚀条件下工作时具有高强度、高韧性等综合性能的可靠性、较低裂纹生长率的耐久性以及成本低、重量轻。高温材料的应用包括两方面工作:评价新研制材料是否胜任使用条件,对其力学性能、理化性能、工艺性能等作出综合评定,量材为用。对正在
The application of high temperature alloys has become more and more attractive. To modern advanced jet, for example, it is characterized by high speed, low fuel consumption, payload, easy to maintain. Material requirements High strength, high toughness and other comprehensive performance reliability when working under high temperature, high stress and gas corrosion conditions, durability of lower crack growth rates, low cost, and light weight. The application of high temperature materials includes two aspects: to evaluate whether the newly developed materials are qualified for use conditions, to make a comprehensive assessment of their mechanical properties, physical and chemical properties, process properties, etc. Right now