Experiment on Ultrasonic Detection of Continuous Fibers Reinforced Titanium Matrix Composites Bling
HAN Bo1, 2, 3, 4, YANG Pinghua1, 2, 3, 4, LIN Lizhi1, 2, 3, 4
1. AECC Beijing Institute of Aeronautical Material, Beijing 100095, China;
2. Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, Beijing Institute of Aeronautical Materials, Beijing 100095, China;
3. Key Laboratory of Aeronautical Materials Testing and Evaluation, Aero Engine Corporation of China, Beijing 100095, China;
4. Aviation Key Laboratory of Science and Technology on Aeronautical Material Testing and Evaluation, Beijing 100095, China
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 reach Φ0.8 mm equivalent flat bottom hole based on appropriate ultrasonic detection process parameters.
2023, 
