CARACTERIZA O MEC NICA E ELéTRICA DA LIGA 6101 MODIFICADA COM DIFERENTES TEORES DE MG

Power cables are manufactured by aluminum alloys due to the mechanical resistance obtained and reduced weight. This paper shows the Mg content influence in 6101 alloy series, the microstructural development obtained to produce power cable, as well as the mechanical and electrical properties analyses in material. These alloys were cast into a “U” mold shape, to obtain cylindrical specimens. The Si content was constant (0.6%) and Mg was added as following contents: 0.3; 0.5; 0.7; 0.9 and 1.1%. These specimens were machined to 10 mm diameter, cold rolled to 3.98 mm diameter and after drawn to 3.45 mm diameter, to obtain wires. The alloys were characterized by tension test to evaluate the mechanical properties of material (Tensile Strength, Elongation and Toughness), and by electrical resistivity test to evaluate electrical properties. The results show that when Mg content is increased, mechanical resistance can be elevated and electrical capacity decreased, on the researched alloys.