Effect of Heat Treatment on the Mechanical Properties of 21-4N Valve Steel

Autor:	Takuro Saga, Kunio Sueyoshi, Tamihiko Aihara, Omi Miyakawa
Rok vydání:	1965
Předmět:	Toughness Materials science Mechanics of Materials Precipitation (chemistry) Mechanical Engineering fungi Metallurgy technology industry and agriculture General Materials Science Lamellar structure Composite material Condensed Matter Physics
Zdroj:	Journal of the Society of Materials Science, Japan. 14:549-556
ISSN:	1880-7488 0514-5163
Popis:	The room and elevated temperature mechanical properties as well as the aging characteristics after various heat-treatment have been investigated on commercial 21-4N valve steel. The results obtained are as follows:(1) Solution temperature of 1200°C is suitable for this steel.(2) In aging the sufficiently solution treated steel at 900∼1000°C, both general and lamellar precipitation occur, but in the steel aged at temperatures below 800°C only general precipitates appear. In the insufficiently solution treated steel at the temperatures below 1150°C, however, only general precipitation takes place regardless of the aging temperature.(3) This steel shows high strength and toughness even in solution treated state. The aging causes only slight improvement of strength, but the toughness at room temperature decreases remarkably by aging, particularly by high temperature aging in which the lamellar precipitation occurs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9e5d4aa1fdb21351cf415b9644330d6a https://doi.org/10.2472/jsms.14.549 Zobrazit plný text záznamu