Copper-rich copper-beryllium alloys are precipitation hardenable. After consulting the portion of the phase diagram (Figure 11.30), do

Question:

Copper-rich copper-beryllium alloys are precipitation hardenable. After consulting the portion of the phase diagram (Figure 11.30), do the following:
(a) Specify the range of compositions over which these alloys may be precipitation hardened.
(b) Briefly describe the heat-treatment procedures (in terms of temperatures) that would be used to precipitation harden an alloy having a composition of your choosing, yet lying within the range given for part (a).