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HW-05%20Solutions - #1 9.49 In this problem we are given...

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9.49 In this problem we are given values of W α and W Fe 3 C (0.86 and 0.14, respectively) for an iron- carbon alloy and then are asked to specify the proeutectoid phase. Employment of the lever rule for total α leads to W α = 0.86 = C Fe 3 C C 0 C Fe 3 C C α = 6.70 C 0 6.70 0.022 Now, solving for C 0 , the alloy composition, leads to C 0 = 0.96 wt% C. Therefore, the proeutectoid phase is Fe 3 C since C 0 is greater than 0.76 wt% C.
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