Akademik Veri Yönetim Sistemi
3rd Aegean Applied Science Congress, İzmir, Türkiye, 16 - 17 Ekim 2021, cilt.1, sa.1, ss.1-5
This paper reports the result of investigations carried out on Nordic gold, a copper alloy containing 5 wt. % Zn, 5 wt. % Al and 1 wt. % Sn. Many European countries prefer Nordic gold alloy for their coin blanks since Nordic gold alloy has a golden-like appearance and high conductivity values. Even though the Nordic gold alloy has supreme electrical conductivity values, the coining process has a severe effect on electrical conductivity. In this study, the electrical conductivity values with different annealing temperatures of the Nordic gold alloy were investigated. Initially, the Nordic gold alloy was cast as ingot with the vertical semi-continuous casting technique. The samples were taken from the ingot as as-cast and pressed as the shape of the dog-bone tensile bar. Three of the samples were determined as reference samples (as-cast (AC)) and, the remaining samples were annealed four by four at different temperatures in equal heat treatment duration. The electrical conductivity measurements of the annealed samples were performed according to ASTM E1004 and were reported in conductivity rate compared to International Annealed Copper Standard (IACS) as well.