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Titolo:
HELIUM EMBRITTLEMENT OF TI AND P ADDED AUSTENITIC ALLOYS CREPT AT 923K
Autore:
YAMAMOTO N; NAGAKAWA J; MURASE Y; SHIRAISHI H;
Indirizzi:
NATL RES INST MET,1-2-1 SENGEN IBARAKI OSAKA 3050047 JAPAN
Titolo Testata:
Fusion engineering and design
, volume: 41, anno: 1998,
pagine: 111 - 117
SICI:
0920-3796(1998)41:<111:HEOTAP>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPERATURE MECHANICAL-PROPERTIES; STAINLESS-STEEL; IRRADIATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
N. Yamamoto et al., "HELIUM EMBRITTLEMENT OF TI AND P ADDED AUSTENITIC ALLOYS CREPT AT 923K", Fusion engineering and design, 41, 1998, pp. 111-117

Abstract

The helium embrittlement response of Ti and P modified and thermomechanically treated Fe-25% Ni-15% Cr type austenitic alloys was studied through post helium implantation creep testing. Helium was introduced into the specimen at 923 K with a concentration of about 60 appm by helium-3 ion irradiation with a cyclotron. Subsequent creep tests were carried out at the same temperature. In terms of creep rupture time, no significant degradation by helium was appreciated in the Ti added alloy, although the P modified one suffered from about a 40% reduction. Onthe other hand, a helium-related decrease in the rupture elongation was perceived in both alloys to a considerable extent. The beneficial result obtained from the Ti modified alloy suggests that the mechanicalproperty deterioration induced by helium could be suppressed by proper Ti addition and/or microstructure controlling even in alloys with intermediate nickel contents (20-25%), like in Type 316 stainless steelsof less nickel content. (C) 1998 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 22:05:23