A Cu-Zn alloy has an initial grain diameter of 0.01 mm. The alloy is then heated to
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A Cu-Zn alloy has an initial grain diameter of 0.01 mm. The alloy is then heated to various temperatures, permitting grain growth to occur. The times required for the grains to grow to a diameter of 0.30 mm are shown below.
Determine the activation energy for grain growth. Does this correlate with the diffusion of zinc in copper?
Transcribed Image Text:
Temperature (°C) 500 600 700 800 850 Time (minutes) 80,000 3,000 120 10 3
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ANSWER The activation energy for grain growth is approximately 137 kJmol This does correlate with th...View the full answer
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Related Book For
The Science And Engineering Of Materials
ISBN: 9781305076761
7th Edition
Authors: Donald R. Askeland, Wendelin J. Wright
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