No.018 ”溶接2番”の問題 Q Type304

1 2000 4 15 - 9 - 2 Q Type304 CBB( ) 1) 2) 13) Cr 4) 2 1000J/mm 23 1 3mm 850 C Cr Cr Cr 850 C 3 Cr 5) 6)

2 Type304L, Type316L < 2) : , Q&A in 2000 4 15 - 10 - 1 17,472 1997 2) M. Akashi: CBB Test Method for Assesing the Stress Corrosion Cracking Susceptibility of Stainless Steels in High-Temperature, High-Purity Water Environments, in , Localized Corrosion-Current Japanese Materials Research 4. , , K. Komai, K. Yamakawa, Eds., Soc., jpn., Elsevier Applied Science, (1988).

3 3) : 31,467(1982) 4) : ibid.,30,559( 1981) 5) : ( 1) JWES-AE 6) : Heat Variability and Thermomechanical Effect of sensitization, in Predictive Methods for Assessing Corrosion Damage to BWR Pioing and PWR Steam Generators,,, , , Eds.,NACE, , (1982)