Compare the diffussion coeficients of carbon in BCC and FCC iron at the allotropic transformation temperature of 912C and explain the difference 5-15 Compare the diffusion coefficients of car-bon in BCC and FCC iron at the allotropictransformation temperature of 912°C andexplain the difference. Temperature (°C)2000 1500 1200 1000 900 800 700 60050010-3H in BCC iron10-4H in FCC iron10-5C in FCC iron10-610-7C in BCC iron10-810-9Fe in FeO10-1010-1110-1210-1310-1410-1546 7 8 9 10 11104T (K)512 13Figure 5-12 The diffusion coefficient Das a function of reciprocal temperature for somemetals and ceramics. In this Arrhenius plot, D represents the rate of the diffusion process.A steep slope denotes a high activation energy.Fe in BCC ironFe in FCC ironMg in MgOCa in CaoC in graphiteDiffusion coefficient D (cm²/s)

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Compare the diffusion coefficients of car- bon in BCC and FCC iron at the allotropic transformation temperature of 912°C and explain the difference.