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1. The maximum weight percentage of carbon atoms (which are very small atoms) that can be...

1. The maximum weight percentage of carbon atoms (which are very small atoms) that can be contained in spaces between the iron atoms in a crystal of face-centered cubic iron at 1333 deg F (723 degC) is 0.8%C.

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since austenite has fcc strucure it contains two types of interstitial sites octahedral and tetrahedral,in fcc octahedral is slightly larger than tetrahedral.The atomic size of carbon atom is more than that of these interstitial site also if more the distortion energy solubility will be less

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