The room-temperature tensile strengths of pure copper and pure silver are 209 and 125 MPa, respectively.
(a) Make a schematic graph of the room-temperature tensile strength versus composition for all compositions between pure copper and pure silver. (Hint: You may want to consult Sections 9.10 and 9.11, as well as Equation 9.24 in Problem 9.79.)
(b) On this same graph schematically plot tensile strength versus composition at 600°C.
(c) Explain the shapes of these two curves, as well as any differences between them.