Microstructure and mechanical properties of friction stir lap welded dissimilar Al/Ti alloys by ultrasonic assistance

• Autorzy: Dong Zhibo , Zhang Ziao , Hu Wei , Gong Peng , Lv Zan

Identyfikatory

DOI

10.24425/amm.2022.137476

• Języki publikacji: EN

Abstrakty

EN

Dissimilar Al/Ti alloy sheets were lap welded with ultrasonic assistance in this work. The influence of ultrasonic vibration on formation, intermetallic compounds (IMCs) and tensile failure load of the obtained joints was discussed. The results showed that voids formed at the lap interface without ultrasonic assistance. No voids can be observed on the joint welded with ultrasonic because the vibration during welding improved the material flow. No obvious IMC formed at the Al/Ti bonding interface of the joint welded without ultrasonic assistance. An IMC layer formed at the bonding interface of Al/Ti with ultrasonic assistance and its thickness increased with decreasing the welding speed. The failure load of the joint welded with ultrasonic assistance was higher than the joint without ultrasonic because the void was eliminated and the thin IMC layer formed at the bonding interface was beneficial to joint strength. All joints presented shear failure mode during the tensile shear tests.

Słowa kluczowe

EN

friction stir lap welding; ultrasonic; intermetallic compounds; failure load; fracture

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2022
• Tom: Vol. 67, iss. 1
• Strony: 91--96
• Opis fizyczny: Bibliogr. 32 poz., fot., rys., tab.

Twórcy

autor

Dong Zhibo

• Harbin Institute of Technology, State Key Laboratory of Advanced Welding and Joining, Harbin 150001, China

autor

Zhang Ziao

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang 110136, China

autor

Hu Wei

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang 110136, China

autor

Gong Peng

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang 110136, China

autor

Lv Zan

• Shenyang Aerospace University, School of Aerospace Engineering, Shenyang 110136, China

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Uwagi

1. This project was supported by the National Science Foundation of China (No. 51705339)

2. Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).