Co-Al-W-based superalloys may become a next generation of high-temperature structural materials used in the hot-section of gas turbine because of the discovery of γ′-strengthening mechanism. The current understanding of deformation behavior and creep properties of Co-Al-W-based superalloys is reviewed in this study. It is found that the Co-Al-W-based superalloys have strong anomalous yield stress behavior and better creep properties, making it as an attractive candidate for high-temperature structural material. The relationship between deformation/creep microstructure and the properties of the alloys needs to be further clarified, which can provide deeper theoretical guidance for further composition design, optimization of heat treatment processes, and guidance of alloy service.

由于γ'强化机制的发现，Co-Al-W基高温合金有望成为下一代燃气轮机热段高温结构材料。本研究综述了目前对 Co-Al-W 基高温合金变形行为和蠕变性能的理解。研究发现，Co-Al-W 基高温合金具有很强的异常屈服应力行为和更好的蠕变性能，使其成为一种有吸引力的高温结构材料候选材料。变形/蠕变显微组织与合金性能的关系有待进一步阐明，为进一步的成分设计、热处理工艺优化、合金服务指导提供更深入的理论指导。