In a precipitation hardening alloy, coring usually results in the precipitation of an eutectic between the dendrite arms. With regard to aluminum?copper alloys, Singh and Flemmings have assumed that this eutectic is divoriced (consists only of the ? phase), and have derived an equation to describe the kinetics of homogenization that is similar to that discussed in the text for homogenization of a cored solid solution alloy. This equation which applies to a solution treatment close to the solvus is:
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Canadian airspace is served by VFR Navigation Charts (VNC) with a scale of:
A. 1:500,000
B. 1:250,000
C. 1:1,000,000
D. 1:100,000
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Young trees with thin bark are susceptible to ____________________ injury until their bark thickens
Fill in the blank(s) with correct word
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In the accompanying figure, what is the slope of the cast iron pipe for every foot of run?
A. 1/16" B. 1/4" C. 1" D. 4"
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In ____________________ timers, the contacts stay in their original position until a solenoid plunger has moved through its entire travel distance.
Fill in the blank(s) with the appropriate word(s).
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