Secondary ion mass spectrometry methods were used to study the diffusion of Al in single crystals at 914 to 1212K. The results could be described by:
D (cm2/s) = 1.0 x 100 exp[-260(kJ/mol)/RT]
W.Gust, M.B.Hintz, A.Lodding, H.Odelius, B.Predel: Physica Status Solidi A, 1981, 64[1], 187-94
Table 80
Bulk Diffusion of B in Ni3Al Single Crystals
Temperature (K) | D(m2/s) |
773 | 5.40 x 10-20 |
813 | 3.57 x 10-19 |
871 | 3.64 x 10-18 |
918 | 2.07 x 10-17 |
996 | 1.76 x 10-16 |
1077 | 1.49 x 10-15 |
1169 | 9.85 x 10-15 |
1241 | 5.12 x 10-14 |
1345 | 1.67 x 10-13 |