Eutectic phase equilibrium of Al-Si-Zn system and its applicability for lower temperature brazing.

Abstract

In order to develop a lower melting temperature filler alloy for brazing of aluminum alloy with high strength and low melting temperature, the eutectic compositions and temperatures of Al-Si-Zn system were determined by the thermal analysis. A typical eutectic composition was Al-4.2mass%Si-40mass%Zn, and the eutectic temperature was 808K.