The paper discusses the specifics of chemical composition, hot isostatic pressing (HIP), and heat treatment of granulated heat-resistant nickel alloys characterized by high long-term strength at 750°C. The results are presented which were obtained by studying EP975-type alloy during manufacturing of large-sized disk blanks for aircraft gas-turbine engines (GTE) using the technology based on metallurgy of granules. Changes in the microstructure after long-term testing at high temperature were evaluated. The phase stability of the material was confirmed.

中文翻译：

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使用超耐热镍合金颗粒生产燃气轮机盘坯的规格

本文讨论了在 750°C 下具有高长期强度的粒状耐热镍合金的化学成分、热等静压 (HIP) 和热处理的细节。介绍了使用基于颗粒冶金的技术制造飞机燃气轮机发动机 (GTE) 大尺寸盘坯过程中研究 EP975 型合金获得的结果。评估在高温下长期测试后微观结构的变化。确认了材料的相稳定性。