Microstructure and Mechanical Characteristics of Friction Welded Joint between Alumina and Aluminum Casting Alloy

Abstract:

In this study, the Al₂O₃ round bar and Al-Si12CuNi (AC8A) round bar were joined by friction welding. AC8A is a typical piston material treated by the heat treatment T6. The parameters of the joining condition are friction time and upset pressure. SEM observed the microstructure at the interface region of joined materials. 1) Judging from these photographs, the damages to the microstructures at the interface region of joined materials by upset pressure are more significant than those caused by friction time. 2) The relationship between the joint conditions and mechanical characteristics from three points of bending test results for the joint material specimens. 3) The residual stresses around the interface were measured by the Raman spectroscopy method. There is a possibility that the friction welding conditions are correlated to the residual stresses.

• Periodical: Materials Science Forum (Volume 1122)
• Pages: 27-33
• DOI: https://doi.org/10.4028/p-9esRhC
• Online since: May 2024
• Authors: Tsuyoshi Takahashi*, Son Thanh Nguyen, Masaaki Kimura
• Keywords: Alumina, Aluminium Alloy, Friction Welding

References

[1] F. Szmytka, Mehdi Salem, Farhad Rezai-Aria, A. Oudin. Thermal fatigue analysis of automotive Diesel piston: Experimental procedure and numerical protocol. International Journal of Fatigue, Elsevier, (2015), 73, pp.48-57. 10.1016/j.ijfatigue.2014.11.011. hal-01609209

DOI: 10.1016/j.ijfatigue.2014.11.011

[2] Sang-Woo Cha, Eung-Ji Ha, Kyung-WooLee and Hoon Chang：Development of Fatigue Durability Analysis Techniques for Engine Piston using CAE, SAE International Journal of Manufacturing, 2-1(2009), 403-408．

DOI: 10.4271/2009-01-0820

[3] Thomas O. Mbuya, Ian Sinclair, Andrew J. Moffat, Philippa A. S. Reed: Analysis of fatigue crack initiation and S-N response of model cast aluminium piston alloys, Material Science and Engineering A, 528(2011), 7331-734

DOI: 10.1016/j.msea.2011.06.007

[4] M.N. Ahmad Fauzi, M.B. Uday, H. Zuhailawati, A.B. Ismail: Microstructure and mechanical properties of alumina-6061 aluminum alloy joined by friction welding, Materials and Design 31 (2010) 670–676

DOI: 10.1016/j.matdes.2009.08.019

[5] Ozdemir N.: Investigation of the mechanical properties of friction-welded joints between AISI 304L and AISI 4340 steel as a function rotational speed. Material Letters(2005);59:2504–2509.

DOI: 10.1016/j.matlet.2005.03.034

[6] Kimura M, Suzuki K, Kusaka M, Kaizu K, Fuji A.: Effect of friction welding con-dition on joining phenomena, tensile strength, and bend ductility of frictionwelded joint between pure aluminium and AISI 304 stainless steel. J ManufProcess (2017); 25:116–25.

DOI: 10.1016/j.jmapro.2016.12.001