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This information applies to problems 9-11. You have three re…

This information applies to problems 9-11. You have three rectangular plates of aluminum alloy 6061. Plate 1 is undeformed, Plates 2 and 3, starting in the undeformed state, have been strain hardened at room temperature to the equivalent of a true strain of: 0.05 for Plate 2 and 0.20 for Plate 3. Using the information in the Table, calculate the true stress of Plate 2 required to reach a true strain of 0.05 and show your work on the Final Exam Template.  Data for Undeformed Aluminum 6061 Yield Stress 55 MPa Ultimate Tensile Strength 124 MPa Strain Hardening Constant , K 224 MPa Strain Hardening Exponent , n 0.21

A copper plate is subjected to 30% cold work in a rolling mi…

A copper plate is subjected to 30% cold work in a rolling mill and subsequently heated in a furnace. The figure on the Final Exam Template shows a qualitatively correct plot of tensile strength versus temperature for the plate as it recrystallizes during heating. Add a qualitatively correct recrystallization curve to this plot representing copper that is subjected to 50% cold work in a rolling mill. Assume that heating begins well before the material begins to recrystallize and that the temperature increases until the material is fully recrystallized.