一、前言用 GH37 合金制造的涡轮喷气发动机一级涡轮叶片,在使用中多次发生折断,定期翻修时也因发现叶背及进、排气边龟裂而报废。这些故障严重影响飞行安全和零备件的供应。为此,有关单位组织故障调研小组在五七○二厂进行调查、分析。根据分析初步认为,上述情况是属于持久和疲劳性质的故障。根据调研结果提出了提高涡轮叶片质量的可能途径,制订了取消涡轮叶片一次固溶处理 First, the introduction GH37 alloy turbojet engine with a turbine blade, broken several times in use, but also because of the regular renovation of the leaves back and into the exhaust side of the cracks and scrapped. These failures have a serious impact on flight safety and availability of spare parts. To this end, the investigation of the failure of the organization unit investigation in July 1970 plant, analysis. According to preliminary analysis, the above situation is a breakdown of the long-lasting and fatigue nature. According to the survey results to improve the quality of turbine blade possible ways to develop a solution to the turbine blade solution treatment