Measurements were made of the chemical diffusivity of Sb in α-phase monocrystals, with 0.5 to 4at%Sb, at 971 to 1176K. It was found that the diffusion coefficients increased with increasing Sb concentration (table 188), while the diffusion anomaly due to magnetic ordering decreased.

A.Schröder, M.Feller-Kniepmeier: Physica Status Solidi A, 1988, 110[1], 107-21

 

Table 187

Diffusivity of Fe in S-Containing Iron

 

S (wt%)

Diffusion

Do

E (kJ/mol)

0.00105

bulk

1.0 x 10-1cm2/s

255

0.00105

boundary*

7.6 x 10-9cm3/s

148

0.00105

boundary**

3.0 x 10-8cm3/s

155

0.00355

bulk

3.0 x 10-2cm2/s

247

0.00355

boundary*

1.24 x 10-6cm3/s

214

0.00355

boundary**

2.1 x 10-6cm3/s

211

* Fisher method, ** Suzuoka method

 

Table 188

Diffusivity of Sb in Fe

 

Sb (at%)

Temperature (K)

D (m2/s)

0

1175.8

3.05 x 10-14

0

1121.1

8.26 x 10-15

0

1074.0

2.40 x 10-15

0

1026.6

3.66 x 10-16

0

971.1

3.16 x 10-17

0.5

1175.8

3.48 x 10-14

0.5

1121.1

9.39 x 10-15

0.5

1074.0

2.78 x 10-15

0.5

1026.6

4.34 x 10-16

0.5

971.1

3.93 x 10-17

1.0

1175.8

3.91 x 10-14

1.0

1121.1

1.06 x 10-14

1.0

1074.0

3.18 x 10-15

1.0

1026.6

5.02 x 10-16

1.0

971.1

4.70 x 10-17

1.5

1175.8

4.32 x 10-14

1.5

1121.1

1.17 x 10-14

1.5

1074.0

3.55 x 10-15

1.5

1026.6

5.65 x 10-16

1.5

971.1

5.42 x 10-17

2.0

1175.8

4.63 x 10-14

2.0

1121.1

1.27 x 10-14

2.0

1074.0

3.85 x 10-15

2.0

1026.6

6.19 x 10-16

2.0

971.1

6.09 x 10-17

2.5

1175.8

4.86 x 10-14

2.5

1121.1

1.36 x 10-14

2.5

1074.0

4.09 x 10-15

2.5

1026.6

6.67 x 10-16

2.5

971.1

6.81 x 10-17

3.0

1175.8

5.03 x 10-14

continued

 

Table 188 (continued)

Diffusivity of Sb in Fe

 

Sb (at%)

Temperature (K)

D (m2/s)

3.0

1121.1

1.44 x 10-14

3.0

1074.0

4.30 x 10-15

3.0

1026.6

7.14 x 10-16

3.0

971.1

7.73 x 10-17

3.5

1175.8

5.14 x 10-14

3.5

1121.1

1.51 x 10-14

3.5

1074.0

4.47 x 10-15

4.0

1175.8

5.21 x 10-14