Corrosion Properties of Friction Stir Welded 2024 Aluminum Alloys

Abstract:

The corrosion properties of friction stir welded 2024 aluminum alloys are studied in this paper. The results show that after 50 hours corrosion in 3.5% NaCl solution, the strength limit, Yield strength and elongations decreased compared to non-corrosion specimen, but not much. All fracture initiated at surface or sub-surface flaws at advancing side. Larger propagation zone is seen in corrosion specimen compared to non-corrosion.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 573-576
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.573
• Online since: October 2014
• Authors: Zhen Zhong Chen, Mao Min Wu, Yao Xiao
• Keywords: Aluminium Alloy, Corrosion, Friction Stir Welding, Mechanical Property

References

[1] Thomas W M，Nicholas E D，Needham J C．Friction stir welding: UK, PCT / GB92/ 02203 [P]. 1991-10-06.

[2] Magdy M. El-Rayes, Ehab A. El-Danaf. The influence of multipass friction stir processing on the microstructural and mechanical properties of Aluminum Alloy 6082. [J]. Journal of Materials Processing Technology, 2012(212): 1157-1168.

DOI: 10.1016/j.jmatprotec.2011.12.017

[3] Wang yan, Liu huijie, Feng jicai. Research Status about Friction Stir Welding of Aluminum Alloy [J]. Aeronautical Manufacturing Technology, 2009(20): 62-65.

[4] Mustafa Kemal Bilici, Ahmet Irfan Yukler. Influence of tool geometry and process parameters on macrostructure and static strength in friction stir spot welded polyethylene sheets. [J]. Materials and Design, 2012(33): 145-152.

DOI: 10.1016/j.matdes.2011.06.059

[5] ZHAO Yadong, WANG Zhigang, SHEN Changbin. Comparision of corrosion properties for 5083 aluminum alloy friction stir welding and metal inert-gas welding weld[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011(9): 77-80.

[6] SHEN Changbin, WANG Zhongzhi, QUAN Gaofeng. Microstructures and Electrochemical Performance of Welds of 6082 Aluminum Alloy Prepared by Friction-Stir Welding[J]. Corrosion Science and Protection Technolog，2010(9): 400-402.

[7] He Miao, Zhang jian, Li guang. Friction Stir Welding Joint Corrosion of 2024 Aluminum Alloy Under Different Conditions[J]. Aeronautical Manufacturing Technology, 2009(19): 69-71.

[8] Dong Chunlin, Wang Lidong, Meng Qiang. Influence of Typical Welding Parameters Process on Fatigue Properties of Al-Li Alloy FSW Butt Joint[J]. Aeronautical Manufacturing Technology, 2012(13): 125-128.

[9] He Miao, Zhang jian, Li guang. Microstructure and Corrosion of 7075 Aluminum Alloy FSW Welded Joints with Different Thickness. [J]. Corrosion Science and Protection Technology, 2009(18)69-71.

[10] Kang Ju, Liang Suying, Luan Guohong. Effect of Processing Parameters on Microstructure and Corrosion Behavior of Friction Stir Welded 2024 Aluminum Alloy. [J]. Corrosion Science and Protection Technology，2012(1): 51-56.

[11] Geng Xuewen, Zhu Lijuan, He Chunlin. Research Development of Weld Corrosion Behavior Friction Stir Welding. [J]. Materials Review, 2007(11): 252 - 254.

[12] Jariyaboon M, Davenport A J, Ambat R, et al. The effect of welding parameters on the corrosion behavior of friction stir welded AA2024-T351[J]. Corros. Sci, 2007, 49(2): 877-909.

DOI: 10.1016/j.corsci.2006.05.038