Abstract

The character of changing the M(\(\bar {d}\))_γ criterion, which is used in the New PHACOMP method and determines the ability of nickel superalloys to form embrittling TCP phases, is determined, and new methods for optimizing their compositions are proposed. They reliably ensure the absence of the phases in the structure of these materials depending on the alloy composition and the dendritic segregation retained after heat treatment. A technique is proposed to adjust the composition of nickel superalloy intended for operation at very high temperatures (1050–1150°C) under conditions of significantly dissolved strengthening γ' phase.

中文翻译：

---

新 PHACOMP 方法在镍高温合金的开发和生产中的作用。对上一代单晶合金的修正

摘要

确定了新 PHACOMP 方法中使用的M ( \(\bar {d}\) ) _γ准则的变化特征，该准则决定了镍高温合金形成脆化 TCP 相的能力，并确定了优化它们的新方法提出了组合物。根据合金成分和热处理后保留的枝晶偏析，它们可靠地确保这些材料的结构中不存在相。提出了一种技术来调整用于在非常高的温度（1050-1150°C）下在显着溶解强化 γ' 相条件下运行的镍高温合金的成分。