CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Technical note: A major loss in tensile strength of friction stir welded aluminum alloy joints resulting from atmospheric corrosion

Mohsen Esmaily (Institutionen för kemi och kemiteknik, Oorganisk miljökemi) ; Jan-Erik Svensson (Institutionen för kemi och kemiteknik, Oorganisk miljökemi) ; Lars-Gunnar Johansson (Institutionen för kemi och kemiteknik, Oorganisk miljökemi)
Corrosion (0010-9312). Vol. 72 (2016), 12, p. 1587-1596.
[Artikel, refereegranskad vetenskaplig]

The effect of corrosion on the mechanical properties of aluminum alloy (AA6005-T6) joints produced by friction stir welding is investigated. The tensile strength of the weldments was analyzed after 100 h exposure to 95% relative humidity air at 22°C in the presence of NaCl and CO2. The corrosion exposure caused a significant decrease in the ultimate tensile strength and ductility of the welds. Microstructural studies revealed that the loss of mechanical properties is associated with corrosion in the vicinity of the joint line remnants (JLRs), which are commonly found in friction stir welds. The reasons behind the preferential corrosion of the JLRs and the effect of corrosion on the mechanical properties of the welds are discussed.

Nyckelord: Aluminum alloy; Corrosion; Friction stir welding; Joint line remnants; Mechanical properties



Denna post skapades 2016-12-19. Senast ändrad 2017-10-03.
CPL Pubid: 246299

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för kemi och kemiteknik, Oorganisk miljökemi

Ämnesområden

Korrosionsteknik

Chalmers infrastruktur