Experimental characterization of Ti6Al4V T joints welded through linear friction welding technique: microstructure and NDE

Autor: Antonino Squillace, Antonello Astarita, Sergio Esposito, L. Maio, Mariacira Liberini, Fabio Scherillo, Ilaria Papa, Mario Coppola
Přispěvatelé: Astarita, Antonello, Coppola, Mario, Esposito, Sergio, Liberini, Mariacira, Maio, Leandro, Papa, Ilaria, Scherillo, Fabio, Squillace, Antonino
Rok vydání: 2016
Předmět:
Zdroj: Advances in Manufacturing. 4:305-313
ISSN: 2195-3597
2095-3127
Popis: Linear friction welding (LFW) is an innovative solid-state welding technique that allows to manufacture joints with high mechanical properties. This technology has various applications in the aerospace field; in particular it is used to weld massive structural components made of Ti6Al4V. This paper deals with the experimental study of Ti6Al4V T-joints welded through LFW, with particular focus on the effectiveness of ultrasonic control in detecting and distinguishing welding defects within the joints. Aiming to this scope, joints with different properties were manufactured and tested: some were free from defects but with different metallurgy, and some had different types of defects. The results obtained proved that the ultrasonic control was an effective method to detect and identify defects in linear friction welded titanium joints, moreover it was possible to get information regarding the microstructure and in particular the extension of the different metallurgical zones induced by the welding process. © 2016, Shanghai University and Springer-Verlag Berlin Heidelberg.
Databáze: OpenAIRE