Effect of Cold Work and Addition of Solutes Ti and Ni about Ultimate Tensile Strength and Elongation of the Al-0.05wt%Cu-[0.24 to 028]wt%Fe- 0.7wt%Si Alloy

Paper #:
  • 2016-36-0533

Published:
  • 2016-10-25
DOI:
  • 10.4271/2016-36-0533
Citation:
Fernandes, E., Lobato, M., Rocha, W., Beserra, A. et al., "Effect of Cold Work and Addition of Solutes Ti and Ni about Ultimate Tensile Strength and Elongation of the Al-0.05wt%Cu-[0.24 to 028]wt%Fe- 0.7wt%Si Alloy," SAE Technical Paper 2016-36-0533, 2016, https://doi.org/10.4271/2016-36-0533.
Pages:
6
Abstract:
The search for new materials to automotive industry has been intensified in the last decade. Among these materials is the aluminum which is widely used in the construction of automotive parts, sheet and in the manufacture of cables used in line transmission and distribution of electricity. Aluminum and its alloys have high deformation rate which can be hardened by plastic deformation, and low specific weight and high coefficient of thermal conductivity. This work was carried out in order to study the effect of titanium elements (content of 0.050 wt%) and Nickel (content of 0.030 wt.%) in the alloy Al-0.05wt% Cu [0.24 to 0.28]wt% Fe-0.7wt% Si. The alloys in study have concentrations within the chemical composition limits of alloys series 1XXX with minimum purity of 99.0%. The solidification processes were carried out via the steel mold (format of "U"). The ingots passed by machining and cold rolling processes for obtaining specimens with two diameters (3.0 and 4.0) mm to evaluate the influence of the cold work, ultimate tensile strength and elongation of the alloys. All alloys were characterized by macrostructural analysis of the gross structures melting, mechanically through the tensile test. The results showed that the greatest accumulation of deformation contributed to the higher ultimate tensile strength and that the alloy with addition of titanium showed better performance. The alloy with the addition of titanium, even with the increasing degree of deformation showed almost identical values of elongation, unlike other alloys had significant decreases in elongation with increasing cold working.
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