Effect of Al on Zn-Al Filler Metal Wettability on Pure Aluminum Surface

Abstract:

Zn-Al filler metal wettability tests were performed on pure aluminum surface. The test results show the spreading area of Zn-Al filler metal gets large on pure aluminum surface gradually with the increase of Al content in Zn-Al filler metal under the match of CsF-AlF₃ flux. When Al content in the Zn-Al filler metal is 15 wt.%, the spreading area of 85Zn-15Al filler metal is biggest on pure aluminum surface. Accordingly, the dendritic eutectoid structure size is smaller near the interface between the Zn-Al filler metal and the pure aluminum base metal by metallographic analysis. When Al content in the Zn-Al filler metal exceeds 15wt.%, the spreading area of filler metal begins to become small. At the same time, the eutectoid structure presents circle shape near the interface between the Zn-Al filler metal and the pure aluminum base metal.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 619-623
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.619
• Online since: August 2013
• Authors: Man Zhang, Yue Bin Lin, Hai Lin Jiang
• Keywords: Pure Aluminum, Wettability, Zn-Al Filler Metal

References

[1] K. Bobzin, L. D. Zhao, T. Schlaefer, et al: Frontiers of Mechanical Engineering in China. Vol. 5(2010), p.47.

[2] W.H. Hoke, C Amenheuser: Welding Journal. Vol. 72(1993), p.65.

[3] B Mcgurran, M G Nicholas: Journal of Materials Science. Vol. 19(1984), pp.2713-2718.