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

• 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.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik -- Korrosionsteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering -- Corrosion Engineering (hsv//eng)

Keyword

speed

microstructural evolution

mg

Atmospheric corrosion

mechanical-properties

welding

2a14-t6 aluminum-alloy

Welding

intermetallic phases

Alloy

induced atmospheric corrosion

pitting corrosion

Metallurgy & Metallurgical Engineering

Materials Science

Aluminium

crystal-structure

localized corrosion

Publication and Content Type

art (subject category)

ref (subject category)