Author:
Abbas Waseem S,Alali Muhaed,Salim J A
Abstract
Abstract
In this study, the corrosion behaviour of friction stir welding (FSW) of AA6061-T3 alloy was investigated. The FSW was performed under two different rotation speed (850 and 950 rpm) and constant travelling speed (22 mm/min). Two tool pin profiles (straight cylindrical and conical types) were utilised to study their impact on corrosion resistance. The corrosion behaviour of the base metal (BM) and weld zone were studied by Tafel polarisation cell using 3.5wt.% NaCl and 3.5wt.% KCl solutions at ambient temperature. The results showed that the welded alloy exhibits lower corrosion resistance than the BM. Lower rotational speed (850 rpm) produced weld with higher corrosion resistance in both NaCl and KCl media. Conical tool pin profile produced weld with corrosion resistance higher than the straight cylinder pin in both NaCl and KCl media. NaCl recorded higher corrosion rate with almost twice of the KCl for all welding conditions.
Cited by
2 articles.
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1. The effect of pin shape on the corrosion behaviour of friction stir welded 1080 aluminium alloy;Advances in Materials and Processing Technologies;2022-06-28
2. Mechanical and Corrosion Behavior of Friction Stir Welded AA 6063 Alloy;Handbook of Research on Advancements in the Processing, Characterization, and Application of Lightweight Materials;2022