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So how does this data on n and Q apply to a ‘real’ problem? T variation with time (position) Hot drawing of wire Modify the JMA equation so that we add up the amount of recrystallization occurring at each place (at each temperature)on the wire.
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Conservation of energy at steady state gives Need to know how T varies with x, where x=Vo * t
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Make homogeneous nonhomogeneous [2] Solve for C 2
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Find the heat transfer coefficient
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Other parameters Check Bi, just to be sure No gradients across the wire
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T f =300 K Temperature variation along wire Recrystallized volume fraction as a function of position along wire
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