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Corrosion behaviour of friction stir-welded AA6005-T6 using a bobbin tool

Mohsen Esmaily (Institutionen för kemi och kemiteknik, Oorganisk miljökemi) ; Seyedeh Nooshin Mortazavi (Institutionen för fysik, Materialens mikrostruktur (Chalmers)) ; W. Osikowicz ; H. Hindsefelt ; Jan-Erik Svensson (Institutionen för kemi och kemiteknik, Oorganisk miljökemi) ; Mats Halvarsson (Institutionen för fysik, Materialens mikrostruktur (Chalmers)) ; G. E. Thompson ; Lars-Gunnar Johansson (Institutionen för kemi och kemiteknik, Oorganisk miljökemi)
Corrosion Science (0010-938X). Vol. 111 (2016), p. 98-109.
[Artikel, refereegranskad vetenskaplig]

The atmospheric corrosion of extruded AA6005-T6 weldments produced with bobbin friction stir welding (BFSW) using fast and slow process parameters has been analyzed. The weldments of the same material fabricated using conventional FSW were also exposed as reference. Copper-rich phase particles were detected at the grain boundaries in the stir zone of both specimens. It was evident that the BFSW specimens exhibit better corrosion behaviour than the specimens produced using the slow process parameters. An effort was made to carefully attribute the improved corrosion resistance of the fast BFSW specimens to the difference in the microstructure of the weldments. (C) 2016 Elsevier Ltd. All rights reserved.

Nyckelord: Aluminium, Alloy, Atmospheric corrosion, Welding, induced atmospheric corrosion, 2a14-t6 aluminum-alloy, mechanical-properties, crystal-structure, microstructural evolution, intermetallic phases, localized corrosion, pitting corrosion, welding, speed, mg, Materials Science, Metallurgy & Metallurgical Engineering



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Denna post skapades 2016-10-14.
CPL Pubid: 243390

 

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