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This question belongs to Metallurgical Engineering Physics Of Metals In Metallurgy

Physics of Metals in Metallurgy

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Which one of the following reactions is fcc/bcc crystals with lattice parameter 'a' is energetically favourable?

A) $$\frac{a}{2}\left[ {\overline 1 10} \right] + \frac{a}{2}\left[ {0\overline 1 \overline 1 } \right]$$ B) $$\frac{a}{2}\left[ {111} \right] + \frac{a}{2}\left[ {11\overline 1 } \right]$$ C) $$\frac{a}{2}\left[ {115} \right] + \frac{a}{2}\left[ {11\overline 1 } \right]$$ D) $$\frac{a}{2}\left[ {111} \right] + \frac{a}{2}\left[ {111} \right]$$

Answer & Solution

Correct Answer: Option A

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