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Materials Science and Manufacturing Engineering Miscellaneous
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Materials Science and Manufacturing Engineering Miscellaneous
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Materials Science and Manufacturing Engineering
Materials Science and Manufacturing Engineering Miscellaneous
With a solidification factor of 0.97 × 106 s/m
2
, the solidification time (in seconds) for a spherical casting of 200 mm diameter is
539
1078
4311
3233
Correct Option:
B
t = k
V
2
A
D = 200 mm
t = 0.97 × 10
6
(4 / 3)π(0.1)
3
2
4π(0.1)
2
t = 0.97 × 10
6
0.1
2
3
t = 1077.8 sec
t ≈ 1078 sec
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