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The boundary line between (alpha) and (alpha+beta) regions must be part of ______.

Q.  
The boundary line between (alpha) and (alpha+beta) regions must be part of ______.


Answer & Explanation

The boundary line between the alpha and alpha+beta regions must be part of the solvus curve. The solvus line indicates the limits of solid solubility between phases, such as alpha and beta, in an alloy system.

Thus correct option is: A.

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