Intro to Austenite 上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY In Fe-C system:austenite solid solution of C in fcc Fe Interstices in FCC structure. (a)Octahedral void. (b)Tetrahedral void. (a) (b) ●.Regular site atoms K.Chen 8K. Chen Intro to Austenite 8 In Fe-C system: austenite solid solution of C in fcc Fe Interstices in FCC structure. (a)Octahedral void. (b)Tetrahedral void. >