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The solution heat treatment of rheo-high pressure die cast Al-Mg-Si-(Cu) 6xxx series alloys

Journal Article


Abstract


  • The 6xxx series alloys are well known for desirable combinations of high strength, weldability,corrosion resistance and formability. This paper investigates the influence of chemical composition on the solution heat treatment parameters of rheo-high pressure die cast (R-HPDC) 6xxx series aluminium alloys. The presence of copper in the 6xxx series aluminium alloys affects the solution heat treatment by promoting incipient melting. The incidence of incipient melting is investigated for the R-HPDC alloys using Differential Scanning Calorimetry (DSC) and optical microscopy. RHPDC

    is known to produce surface liquid segregation and centre-line liquid segregation when

    processing the alloys and these areas are the most susceptible to incipient melting. The applicability

    of single and multiple step solution heat treatments are investigated. The alloys used for this study

    include the Cu-free alloy 6082, as well as the Cu-containing alloys 6013 and 6111.

UOW Authors


  •   Daswa, Pfarelo (external author)
  •   Moller, Heinrich (external author)
  •   Du Toit, Madeleine
  •   Govender, Gonasagren (external author)

Publication Date


  • 2014

Citation


  • Daswa, P., Moller, H., Du Toit, M. & Govender, G. (2014). The solution heat treatment of rheo-high pressure die cast Al-Mg-Si-(Cu) 6xxx series alloys. Solid State Phenomena, 217 - 218 259-264.

Scopus Eid


  • 2-s2.0-84914132638

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3411

Number Of Pages


  • 5

Start Page


  • 259

End Page


  • 264

Volume


  • 217 - 218

Abstract


  • The 6xxx series alloys are well known for desirable combinations of high strength, weldability,corrosion resistance and formability. This paper investigates the influence of chemical composition on the solution heat treatment parameters of rheo-high pressure die cast (R-HPDC) 6xxx series aluminium alloys. The presence of copper in the 6xxx series aluminium alloys affects the solution heat treatment by promoting incipient melting. The incidence of incipient melting is investigated for the R-HPDC alloys using Differential Scanning Calorimetry (DSC) and optical microscopy. RHPDC

    is known to produce surface liquid segregation and centre-line liquid segregation when

    processing the alloys and these areas are the most susceptible to incipient melting. The applicability

    of single and multiple step solution heat treatments are investigated. The alloys used for this study

    include the Cu-free alloy 6082, as well as the Cu-containing alloys 6013 and 6111.

UOW Authors


  •   Daswa, Pfarelo (external author)
  •   Moller, Heinrich (external author)
  •   Du Toit, Madeleine
  •   Govender, Gonasagren (external author)

Publication Date


  • 2014

Citation


  • Daswa, P., Moller, H., Du Toit, M. & Govender, G. (2014). The solution heat treatment of rheo-high pressure die cast Al-Mg-Si-(Cu) 6xxx series alloys. Solid State Phenomena, 217 - 218 259-264.

Scopus Eid


  • 2-s2.0-84914132638

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3411

Number Of Pages


  • 5

Start Page


  • 259

End Page


  • 264

Volume


  • 217 - 218