STRESS-CORROSION CRACKING AND INTERGRANULAR CORROSION OF NEUTRON-IRRADIATED AUSTENITIC STAINLESS-STEELS

被引：10

作者：

FUKUYA, K

SHIMA, S

KAYANO, H

NARUI, M

机构：

[1] TOSHIBA CO LTD,DIV NUCL ENERGY,ISOGO KU,YOKOHAMA 235,JAPAN

[2] TOHOKU UNIV,IRON STEEL & OTHER MET RES INST,OARAI BRANCH,IBARAKI 31113,JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 191卷 / pt B期

关键词：

D O I：

10.1016/0022-3115(92)90626-V

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of irradiation on stress corrosion cracking (SCC) and intergranular corrosion (IGC) susceptibility were investigated in solution-treated Fe-19Cr-9Ni-Mn alloys and JPCA irradiated to 5.3 X 10(24) n/m 2 (E > 1 MeV) at 573 K. In Fe-19Cr-9Ni-Mn alloys, the irradiation enhanced IGC in boiling HNO3 + Cr6+ solution when the alloys contained phosphorus and silicon and induced SCC in all the alloys with strain rate tensile tests in 571 K water containing 32 ppm oxygen. With increasing phosphorus and silicon contents, IGC was promoted but IGSCC was suppressed after irradiation. The results indicated that these elements are not the main contributors to irradiation-assisted SCC, although they affect SCC behavior. The Japanese Prime Candidate Alloy (JPCA) had better SCC resistance than Fe-19Cr-9Ni-Mn alloys under the present irradiation condition.

引用

页码：1007 / 1011

页数：5

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