Influence of AlB2 compound on elimination of incoherent precipitation in artificial aging of wires drawn from redraw rod extruded from billets cast of alloy AA-6101 by vertical direct chill casting

Karabay S.

MATERIALS & DESIGN, vol.29, no.7, pp.1364-1375, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 7
  • Publication Date: 2008
  • Doi Number: 10.1016/j.matdes.2007.06.004
  • Journal Name: MATERIALS & DESIGN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1364-1375
  • Keywords: log casting, AA-6101, AlB2, incoherent precipitation, high and extra-high conductivity, precipitation hardening, HEAT-TREATMENT, CONDUCTIVITY, ALUMINUM
  • Kocaeli University Affiliated: Yes


In this article, a processing method of high conductive (HC) and extra-high conductive (EHC) electrical wires from AA-6101 alloy to manufacture aerial non-composite, composite, and various types of OPGW conductors has been presented. In HV-transmission lines, the most important problem is optimisation between tensile strength of conductor material and electrical conductivity. Alloys AA-6101 and AA-6201 are the best 6xxx series of aluminium used in transmission lines. But their conductivities are not as good as EC-grade 99.7% aluminium. Low conductivity conductors, which are preferred because of requirement of high tensile strength related to geographical conditions, cause loss of the produced electrical energy thus they need long time in pay back of the transmission line investment. However, using processing method applied to Al-Mg-Si alloys described here these problems can be considerably eliminated.