Effect of ultrasonic impact treatment on the microstructure and mechanical properties of diffusion-bonded TC11 alloy joints

• Autorzy: Yang Zhenwen , Liu Qi , Wang Jiahui , Ma Zongqing , Wang Ying , Wang Dongpo

Identyfikatory

DOI

10.1016/j.acme.2019.09.006

• Języki publikacji: EN

Abstrakty

EN

To derive the higher mechanical properties of diffusion-bonded joints at a low bonding temperature, ultrasonic impact treatment (UIT) was used to increase the dislocations and refine the microstructure of faying surfaces prior to diffusion bonding. The results show that a deformation layer with a thickness of 30 mm formed near the impacted TC11 alloy surface, with many dislocation tangles, substructures, and dislocation cells in this layer. Diffusion bonding experiments were performed for both original samples and UIT samples. For the original TC11 alloy, the average shear strength of the diffusion-bonded joints increased with an increase in the bonding temperature, and the joint strength was 550 MPa for joints bonded at 820 8C for 30 min under a pressure of 10 MPa. However, the average shear strength of the TC11 alloy joints with UIT reached 560 MPa for the joint that was diffusion-bonded at 780 8C, whereas it was only 370 MPa for the joint without UIT. Therefore, UIT of the alloy surface resulted in a joint with a high strength at a relatively low bonding temperature, which may be beneficial to inhibit the grain growth caused by the high temperature bonding process.

Słowa kluczowe

EN

UIT; diffusion bonding; grain refinement; mechanical properties

PL

klejenie dyfuzyjne; uszlachetnianie ziarna; właściwości mechaniczne

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 4
• Strony: 1431--1441
• Opis fizyczny: Bibliogr. 30 poz., rys., wykr.

Twórcy

autor

Yang Zhenwen

• Tianjin Key Lab of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

autor

Liu Qi

• Tianjin Key Lab of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

autor

Wang Jiahui

• Tianjin Key Lab of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

autor

Ma Zongqing

• Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

autor

Wang Ying

• Tianjin Key Lab of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

autor

Wang Dongpo

• Tianjin Key Lab of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)