
Interpretation:
The value of constants n and c for the given equation needs to be calculated.
Concept Introduction:
At constant temperature, the determination of solid phase transformation is done by using the Avarmi equation. Generally, it is used to describe the rate of kinetic crystallization.
This equation is also known as the JMAK equation as it was founded by Johnson-Mehl-Avrami-Kolmology. This equation was first found in the year

Answer to Problem 12.6P
The constants value of
Explanation of Solution
Given Information:
Eqauation:
Elapsed time −
Assuming, elapsed time −
Temperature constants -
From the given sigmoidal curve, we can obtain values that are found out in Table 1
To calculate the value of c and n by using the below formula,
Taking natural logarithm on both the sides,
From the above sigmoidal curve, we can find time taken for solidification,
Table
Equation of the straight line −
Then to find value of
Then to find the value of
Thus, the value of are
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Chapter 12 Solutions
Essentials of Materials Science and Engineering, SI Edition
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