The radiotracer technique was used to study the diffusion of 63Ni in the boundary zone of a Fe-Ni bicrystal (table 140).

Y.L.Zarapin, S.V.Zemskii, N.I.Sheftel, V.G.Golovchenko, T.V.Lizunova: Novye Metody Obrab. Metal. Davleniem, 1972, 107-12

 

Table 143

Grain Boundary Diffusion Parameters for 22P in Fe-Ni

 

P (at%)

Ni (at%)

Temperature (K)

Do (m2/s)

E (kJ/mol)

-

-

1018-1153

3.03 x 10-9

218

0.16

-

974-1155

4.30 x 10-12

153

0.18

-

974-1153

3.36 x 10-11

168

0.38

-

932-1153

2.31 x 10-10

192

0.14

1.03

1014-1077

1.83 x 10-13

125

0.14

1.03

932-1018

3.79 x 10-8

229