Page 113 - The Effect of Hydrogen and Hydrides - ebook first test

Table 4-6: Test matrix for BWR cladding:

(a) Irradiated BWR-50GWd/t-type Ziraloy-2 (with liner); (b) irradiated BWR-55GWd/t-type Zircaloy-2 (with liner); (c)
irradiated BWR-55GWd/t-type Zircaloy-2 (with liner); (d) irradiated BWR-40GWd/t-type Zircaloy-2 (no liner).
(e) Unirradiated BWR-50GWd/t-type Zircaloy-2 (with liner).

A: Hydride reorientation test (constant hoop stress); A': hydride reorientation test (gas was closed packed in the tube and
hoop stress decreased with temp.); B: ring compression test; C: longitudinal tensile test (low strain rate);
and D: ring tensile test, longitudinal tensile test (each test including high strain rate)

Temperature Cooling Hoop stress (MPa)
rate

(a) (C) (K) (C/h) 0 (heat treatment 16 28 40 70 85 100 As-irradiated (no heat
without stress) treatment)
400 673 A+B A+B A+B A+B A+B . . . . . . B
300 573 30 A+B+C A+B A+B A+B A+B+C A+B A+B
250 523 A+B . . . A+B A . . . . . . A+B
300 573 3 A+B . . . . . . . . . A+B . . . . . .
0.6 A+B . . . . . . . . . A+B . . . . . .
(b) Temperature Cooling Hoop stress (MPa)
rate
(C) (K) (C/h) 0 (heat treatment 40 70 85 100 As-irradiated (no heat
without stress) treatment)
340 613 30 A A A . . . A A
300 573 A . . . A A A
275 548 A . . . A . . . A
(c) Temperature Cooling Hoop stress (MPa)
rate
(C) (K) (C/h) 0 (heat treatment 100 As-irradiated (no heat
without stress) treatment)
300 573 3 Aˊ D

(d) Temperature Cooling Hoop stress (MPa)
rate
(C) (K) (C/h) 0 (heat treatment 70 As-irradiated (no heat
without stress) treatment)
300 573 3 A+B B
(e) Temperature Cooling Hoop stress (MPa)
rate
(C) (K) (C/h) 0 (heat treatment 70 100 As-irradiated (no heat
without stress) treatment)
400 673 30 A A+B A B
300 573 A A A
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