The higher yield strength of cold rolled aluminium alloy (220 MPa) compared to an annealed aluminium (30 MPa) is the result of: Options de la question 6 : a) Strain hardening b) Solid solution strengthening c) Precipitation hardening d) Ageing
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It is a measure of the material's ability to withstand deformation. Show more…
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A tension test was performed on an aluminum 2014-T6 alloy specimen. The resulting stress/strain diagram is shown in the figure. Estimate (a) the proportional limit, (b) the modulus of elasticity, (c) the yield strength based on a 0.2% offset method, and (d) the ultimate stress.
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