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b
800
a
600
c
e
400
a
b
c
d
e
As-received
Circumferential
R21AC
R32AC
R43AC
200
d
0
0
5
10
15
Strain (%)
20
25
30
4.34 Stress-strain response of hydrided Zircaloy-4 tubes stressed in
circumferential direction at room temperature. Specimen R32AC has
the most radial hydrides (Hong and Lee, 2005).
(a)
(b)
￿ ￿ ￿ ￿ ￿ ￿
100 μ m
100 μ m
(c)
(d)
100 μ m
100 μ m
4.35 Hydride distribution in the radial-circumferential plane of SRA
Zircaloy-4 (a) as received, (b) R21AC, (c) R32AC and (d) R43AC (Hong &
Lee, 2005).
 
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