摘要
本文结合连续纤维增强钛基复合材料(TMCs)整体叶环的制备工艺和结构特点,重点分析了TMCs整体叶环内部质量的超声检测难点,并通过对特定尺寸TMCs整体叶环的超声检测试验及解剖对应分析,确定了纤维碎断、纤维束开裂、纤维屈曲、纤维挤出及焊缝处开裂(未焊合)等可能存在的主要缺陷类型及超声回波信号特征。试验结果表明,基于适当的超声检测工艺参数对TMCs整体叶环的内部质量进行检测,检测灵敏度可达Φ0.8 mm当量平底孔。
Combined with the preparation process and structural characteristics of continuous fiber reinforced titanium matrix composite(TMCs)monolithic blade rings,this paper focuses on the analysis of the difficulties in ultrasonic detection of the internal quality of TMCs monolithic blade rings,and through the ultrasonic detection test and anatomical analysis of specific size of TMCs monolithic blade rings.The main defect types and ultrasonic echo signal characteristics such as fiber breakage,fiber bundle cracking,fiber buckling,fiber extrusion and crack at weld were determined.The test results show that the sensitivity of the inner quality of the integral blade ring of TMCs can reachΦ0.8 mm equivalent flat bottom hole based on appropriate ultrasonic detection process parameters.
作者
韩波
杨平华
林立志
HAN Bo;YANG Pinghua;LIN Lizhi(AECC Beijing Institute of Aeronautical Material,Beijing 100095,China;Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing Institute of Aeronautical Materials,Beijing 100095,China;Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing 100095,China;Aviation Key Laboratory of Science and Technology on Aeronautical Material Testing and Evaluation,Beijing 100095,China)
出处
《航空制造技术》
CSCD
北大核心
2023年第12期110-116,127,共8页
Aeronautical Manufacturing Technology
