( ) 75 1
1 : SCC 2 ( 16) NISA 3 PWR ( 17616NISA ) 4 BWR 5 BWR 6 7 ( 16) 8 2
(1) Stress Corrosion Cracking (IGSCC: Intergranular Stress Corrosion Cracking) Transgranular Stress Corrosion Cracking) Irradiation Assisted Stress Corrosion Cracking 3
4 S C C 2(4) PWR 3(5) PWR < 154, 17 > 15 1611 < 181 > 3(4) < 1510 >
1.(3) H15.10 H14.11 H15.3 H16.10 2000 2002 H15.4 NISA PLR H15.12 NISAH16.9 NISAH18.3 NISA H14.12 H15.6 H15.9 H16.9 H18.2 WG PLR H15.5 WG 5
6
7 15 1610 NISA 154 (1) (2) (3) (4)
8 SUS316 1985 1985 19921995 1995 19982001 1994 1994 2000 20017
9
10
11 ( 20mm 600mm 500mm 400mm 300mm 10mm ) ( ) ( ) ( ) ( )
12 (4)-
13 (4)- (CRC: Corrosion Resistant Cladding) HSW: Heat Sink Welding) (IHSI: Induction Heating Stress Improvement)
14 3.PWR (1)SCC (2) (3) (4) (5) (6) NISA 1512 NISA SCC SCC PWR
15 3 H16.11 J Ni PWSCC SCC Ni H16.5 Ni PWSCC SCC Ni H15.9 mm 1mm H16 PWSCC
NRC V.C.Summer H12.10) Oconee H13.1) CRDM) J Davis-Besse (H14.3) CRDM PWSCC NRC PWR EDY) (H13.2H14.2 South Texas Project H15.4) Alloy 600)J Alloy 82/182) Alloy 600 PWSCC Alloy 600 Alloy 52 SCC Alloy 690 16
17 (3)2003 () 18 NRC EDY PWSCC 600Ni Ni Ni (H16.5)
18 H15 100mm 100mm Ni H15 Ni H17
19 PWR PWSCC PWR PWSCC PWR PWSCC Ni SCC Ni Program for Inspection of Nickel Alloy Components
20 (1) BWR BWR (2) (3) (4) (5) (6)
21 6 1 4 6 7 1 1 2 4 2 3 4 1 2 3 5 1 2 3 4 2 5 (4 ) 3( 14.1) 5( 17.1) 1( 17.12) 2 (18.3) (6 ) 1( 13 ) 2( 11 ) 3( 10 ) 5( 13 ) 1( 12 ) 1( 13 )
22 17.12 17.11.04 17.08 17.07.13 17.10 17.05.24 17.06 17.05.27 17.04 17.04.13 17.04 17.04.13 17.02 17.01.06 17.02 16.12.21
23 H1 H2 H4 H6b H7 H3 H6a H1 H2 H3 H4 H6a H6b H7a H7b H1 H2 H4 H6b H7 H3 H6a H1 H2 H4 H6b H7 H3 H6a H1 H2 H3 H4 H6a H6b H7a H7b H1 H2 H3 H4 H6a H6b H7a H7b H1 H2 H3 H4 H6a H6b H7a H7b
6.1E+24 n/m 2 1.3E+25 ( ) (6.1E+24 2.35.2E+24 24
6 25
26
27
28
29 ABWR, (2) (3) SUS304 ( )
30 5(1) BWR ( )
31 5(2) 18.04 18.04.19 18.04 17.08.18 18.04.19 17.08 17.07.20 1 17.03 17.02.09
,KK1 KK4,H3, 1 32
2F4,H1,H3, KK1 2F3 33
34 5(4) 3 JEAG4207-2004
35 5(5)
36 6(1)PWR H18.1.6 H17 H17.3.1 PWR PWSCC 12 WJP 1 [WJP] [WJP] [LP] BMI 34 34 12 3 12 34 2 23 12 12 12 124 690 Ni Ni PWSCC 3 J (H16.5
37 6(2) PWSCC 600 690 (b) 1 600Ni 450MPa 600Ni 300MPa 690Ni PWSCC
38 7(1) 17 JNES WG PD PD UT SUS PD PD PD JNES UT ECT H4 ECT JAEA SUS L JNES PLR H18 PLR H19 K
7 H16.6 (2) SCC PLR TGSCC 2 TGSCC 3 39
7(2) SCC *1) 0.4mm 0.2mm : *2) JNES *1) M. Itow et al., SCC Growth Rates and Reference Curves for Low Carbon stainless Steels in BWR Environment, in: PVP-Vol. 479, Residual Stress, Fracture, and Stress Corrosion Cracking, Ed. Y.-Y. Wang, ASME, New York, NY (2004) p.167. µ 40
7(2) SCC SUS316L 20 30 40 60 1.2510-4 /s 288 41
7(2) SCC JNES SCC SCC SCC JSME SUS304 ECP150mV SHE ) JSME ECP150mV SHE ) HAZ) SCC 42
43 8 (1) (1) 8 12 1.39mm/
44 (2)
45 ( ) JNES BWR -100 mv SHE SCC BWR K 182 PWR IGSCC) SUS IASCC) JMTR BWR
46 ( )
47 (5) (JSME S NA1-2002)(CC-002) (JSME S NA1-2004 (2) ( 3 1) ( 1)
48 (6)
49 1510 183 169 4.4mm PD 1712
50 = 1.53
7 8 m ~ SUS304SUS316LC 4~5m 51
52 SUS316LC
53 2000 2002
54
200210 2000 ASME 20005 ASME ASME NRC (1) (2) (3) (4) (6) (7) (1) (2) (3) (4) (5) 55
YES No YES = 4/5 = 30 No 56
57 156 159 15425 523 1586 93 1412 156 WG4 4 156 159 WG2 3
58 (3) NISA N 2002 (1) (2) 30mm/ API579 (3) 15 NISA (1) (2) (3) H15 4 )
59 (1)
60 (2) 2 UT 7080 (7080) (3035)
61 (3) UT (UTS
(4) L d c dc mm 1.0L5.7 SCC da/dt (m/s) 1.0E-08 1.0E-09 1.0E-10 1.0E-11 316NG HAZ (CT ) 316NG (CT ) 316NG (WOL ) SUS304 JSME S NA1-2002 [5] JSME S NA1-2002 [5] L SCC NUREG-0313 Rev.2[10] 1.0E-12 1 10 100 K (MPam) 62
63 (5) PD PD PD 18 PD PD PD PD 17 PD 17 PD PD 4.4mm PD 169 PD NISA PD NISA
(6)PD PD PD PD PD PD PD PD PD 64