The first nucleus appears during the solidification of an alloy with 90 wt % Sb.(a) What are the temperatures at the beginning and at the end of the solidificationfor this alloy?
Question
The first nucleus appears during the solidification of an alloy with 90 wt % Sb.(a) What are the temperatures at the beginning and at the end of the solidificationfor this alloy?
Solution
To answer this question, we need to refer to the phase diagram of the alloy system in question. In this case, it's an alloy of Antimony (Sb).
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Identify the phase diagram for the Sb alloy system. This diagram will show the phase (solid, liquid, or a mix of both) of the alloy at different temperatures and compositions.
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Locate the 90 wt % Sb point on the horizontal axis of the phase diagram.
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Draw a vertical line from this point until it intersects with the liquidus and solidus lines. The liquidus line represents the temperature above which the alloy is completely liquid, and the solidus line represents the temperature below which the alloy is completely solid.
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The temperature at the beginning of the solidification is the temperature at the intersection with the liquidus line. This is because solidification begins when the temperature drops below the liquidus temperature.
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The temperature at the end of the solidification is the temperature at the intersection with the solidus line. This is because solidification ends when the temperature drops below the solidus temperature.
Without the specific phase diagram for the Sb alloy system, I can't provide the exact temperatures. However, you can follow these steps to find the temperatures once you have the phase diagram.
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