The role of crack tip strain rate in the stress corrosion cracking of high strength steels in water

Autor:	I.O. Smith, Andrej Atrens, R. M. Rieck
Rok vydání:	1989
Předmět:	Crack closure Materials science Fracture toughness Environmental stress cracking Mechanics of Materials Metallurgy Metals and Alloys Slow strain rate testing Stress corrosion cracking Condensed Matter Physics Environmental stress fracture Corrosion Stress concentration
Zdroj:	Metallurgical Transactions A. 20:889-895
ISSN:	2379-0180 0360-2133
DOI:	10.1007/bf02651655
Popis:	Creep tests have been performed on fracture mechanics specimens of as-quenched 4340 and 3.5NiCrMoV rotor steel to confirm the importance of crack tip strain rate in causing stress corrosion cracking. By allowing creep in a noncracking environment, dry air for the high strength steels tested, cracking did not occur when water, the corrosive solution, was later added to the system. Thus, it is possible to inhibit stress corrosion in spite of conditions otherwise conducive to crack growth. Conditions necessary to restart cracking were also tested. The importance of this result in terms of the mechanism of stress corrosion and difficulties in measuring KISCC is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8fe9c569c772c579f1cdbc20b03e69a0 https://doi.org/10.1007/bf02651655 Zobrazit plný text záznamu