The tracer diffusion of C in austenitic Fe-0.8wt%C alloy at 800 to 1200C (table 46) could be described by:
D (cm2/s) = 1.36 x 10-2 exp[-26.2(kcal/mol)/RT]
D.F.Kalinovich, I.I.Kovensky, M.D.Smolin: Izvestiya Akademii Nauk SSSR (Metally), 1974, 4, 105-7
Table 46
Diffusion of 14C in Fe-C Alloys
C (wt%C) | Temperature (C) | D (cm2/s) |
1.3 | 1000 | 4.29 x 10-7 |
1.3 | 1025 | 5.42 x 10-7 |
1.3 | 1050 | 6.19 x 10-7 |
1.3 | 1075 | 6.87 x 10-7 |
1.3 | 1100 | 9.70 x 10-7 |
1.3 | 1125 | 1.02 x 10-6 |
1.3 | 1150 | 1.11 x 10-6 |
1.3 | 1175 | 1.39 x 10-6 |
1.3 | 1200 | 1.61 x 10-6 |
1.45 | 1050 | 6.64 x 10-7 |
1.45 | 1070 | 7.35 x 10-7 |
1.45 | 1090 | 8.39 x 10-7 |
1.45 | 1110 | 8.80 x 10-7 |
1.45 | 1130 | 1.08 x 10-6 |
1.45 | 1150 | 1.22 x 10-6 |