Environmental Engineering Reference
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(a)
1400
1R
1200
2R
3R
1000
800
600
Channel
400
200
0
(b)
1200
1R
1000
2R
3R
800
600
400
Channel
200
0
(c)
500
1R
400
2R
3R
300
200
100
0
0
5
10
15
Fluence (×10
23
n/m
2
)
4.14
Modelling predictions for solute release to the matrix as a function
of fl uence for Zircaloy-2 (SPP size: 1R = 0.026 ˩m; 2R = 0.042 ˩m;
3R = 0.056 ˩m and Zircaloy-4 channel= 0.6 ˩m) irradiated near 300
°
C:
(a) Fe, (b) Cr and (c) Ni (Mahmood
et al
., 1997). Copyright 1997 by the
American Nuclear Society, La Grange Park, Illinois.
are only approximate, and may vary because the heat treatments used may
not achieve equilibrium conditions. Figure 4.16 points out that there is a
region, not reported in Fig. 4.17, where only the Laves phase exists. This
tends to be for 1%Nb and 0.2-0.4 Fe; for example in the 'normal' E635 alloy
Zr-1.2Sn-1.0Nb-0.4Fe.
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