镍基高温合金中γ′相的高温稳定性及筏状结构的形成

Stability of γ′ Phase at Elevated Temperature and Formation of Its Rafts in Nickel Base Superalloys

γ′相是镍基高温合金中的主要强化相，它在高温下的稳定性问题非常关键。本文综合论述了镍基高温合金中γ′相的高温稳定性及其筏状结构形成的研究进展，总结了γ′相筏状结构研究的主要结果，对筏状γ′相的形成机制也进行了综合分析。

Gamma prime is the main strengthening phase in nickel base superalloys and its stability at elevated temperature is very important. The research works on the stability of γ′phase and its rafting behaviour were reviewed and the main results and the formation mechanisms of γ′ rafts were summarized in this paper.