Unformatted text preview: rate = 1 t 0.5 = 1 226.3 min = 4.42 x 103 (min)1 10.5 For this problem, we are given, for the austenitetopearlite transformation, two values of y and two values of the corresponding times, and are asked to determine the time required for 95% of the austenite to transform to pearlite. The first thing necessary is to set up two expressions of the form of Equation (10.1), and then to solve simultaneously for the values of n and k . Rearrangement of Equation (10.1) and taking natural logarithms twice, leads to ln ln [ ] 1 1  y = ln k + n ln t...
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 Natural logarithm

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