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本文研究不同热变形工艺和组织状态与声传播特性的对应关系，以及改善声传播特性的途径，在试验分析基础上提出高温合金噪声电平和底反射损失评定方法和限制界限。
In this paper, we study the corresponding relationship between different thermal deformation process and microstructure and sound propagation characteristics and ways to improve the acoustic propagation characteristics. Based on the experimental analysis, we propose the evaluation methods and limits of the noise level and the bottom reflection loss of the superalloy.