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23705-79是苏联供八十年代用的最新版的耐热合金技术条件。它对于我国航空和冶金工业部门有直接的参考价值.该技术条件的主要特点:1.同一牌号合金以不同熔炼方法生产的性能要求有差异;2.为保证合金在高温下长期组织稳定性,对高合金化的牌号,加严化学成分的要求;3.为改善929合金成品叶片的晶粒度,可选用碳含量为0.08～0.12%,即929A合金;4.提供了超声波探伤方法及其验收标准;5.使用方有权提出加做气体含量和蠕变性能等要求;6.从新版苏联航空材料手册中摘录出许多重要数据,对于生产,使用和设计选材,具有直接的应用价值。由于版面限制,仅将23705-79主要内容摘译如下。
23705-79 is the Soviet Union for the eighties with the latest version of the heat-resistant alloy technical conditions. It has a direct reference value for China’s aviation and metallurgical industry departments.The main features of the technical conditions are as follows: 1. The performance requirements of the same grade of alloy produced by different smelting methods are different; 2.In order to ensure the long-term organizational stability of the alloy under high temperature, For the high alloying grades, the requirements of more strict chemical composition; 3. In order to improve the grain size of 929 alloy finished leaves, the carbon content of 0.08 ~ 0.12%, namely 929A alloy, can be used; 4. The ultrasonic testing method and its Acceptance criteria; 5. The user has the right to ask for additional gas content and creep performance and other requirements; 6. From the new version of the Soviet aviation materials manual excerpt of many important data for the production, use and design of materials, has a direct application value. Due to layout restrictions, only the main contents of 23705-79 excerpt below.