Effect of Zinc on the Tensile Properties, Microstructure and characteristics in Aluminum Alloys | ||
| Egyptian Journal of Solids | ||
| Article 2, Volume 43, Issue 1, 2021, Pages 16-36 PDF (2.13 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejs.2021.66610.1003 | ||
| Author | ||
| Mahmoud Salem* | ||
| Physics Department faculty of science New valley university | ||
| Abstract | ||
| The existing work characterizes the consequence of Zinc increase of the precise structure, thermal and mechanical characteristic of Aluminum by supplement 60% Zinc and 10 % Zinc to fine Aluminum alloy to gained Zinc-40Aluminium and Zinc-90Aluminium. The study presented that the superplasticity of Zinc-90Aluminium is reduced compared with Zinc-40Aluminium. The strain rate (SR; .) and temperature (T) are having extremely influence on tensile figure. Too (SR; .) and (T) donate excellent Young's modulus (Y), ultimate tensile stress (UTS), yield stress (σy), and fracture strength (breaking strength) σf associated with the exponent rule σ =Cε•m; where C is a fixed number and m is the strain average sensitivity index; while strain rate and temperature decrease fracture strain (εf ). The tensile figures are (T) and (SR; .) dependence. Stress-strain characteristics of Zinc-40Aluminium and Zinc-90Aluminium alloys were investigated at various strain rates (SR, ε•) from 5.0×10-4 to 6.4×10-3 s-1 and deformation temperatures from 298 to 393 K. In case of Zinc-90Aluminium; it has higher ultimate tensile stress (UTS) i.e. Zinc-40Aluminium is more in elongation (ductility) than Zinc-90Aluminium. A common decrease of strain εT with (SR; .) is characterized by the equation εT =Aexp(-λε•m); A and λ are constant. The results depend on variation precise structure. The Zinc supplement from 10% to40% refines the precise structure, enhancing the mechanical properties, and form increase the ductility. | ||
| Keywords | ||
| Aluminium; Activation energies; Strain; Stress; Zinc | ||
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