Calculate the total % β and the % eutectic microconstituent at room temperature for the following lead-tin alloys: 10% Sn, 20% Sn, 50% Sn, 60% Sn, 80% Sn, and 95% Sn. Using Figure 11-18, plot the strength of the alloys versus the % _ and the % eutectic and explain your graphs.
Figure 11-18 The effect of the composition and strengthening mechanism on the tensile strength of lead-tin alloys.