Creep Characterization of 12Cr Steel and 2.25Cr Steel by Using Miniature Specimen

Specimens with a gage section diameter of 1 mm and 6 mm were prepared from 12 Cr steel used over a long period in a power plant, and were compared for the difference of creep rupture strength depending on the gage-section diameter. Specimens of 2.25 Cr steel with a gage section diameter of 1 mm and...

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Veröffentlicht in:	Nihon Kikai Gakkai rombunshuu. B hen 2015-03, Vol.79 (799), p.253-257
Hauptverfasser:	Kanaya, Akihiro, Tsurui, Takafumi, Kusumoto, Junichi, Watanabe, Hajime, Murata, Kinzo
Format:	Artikel
Sprache:	jpn
Schlagworte:	Chromium Creep rupture strength Gages Iron and steel industry Mechanical engineers Miniature Steel making Steels
Online-Zugang:	Volltext
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Zusammenfassung:	Specimens with a gage section diameter of 1 mm and 6 mm were prepared from 12 Cr steel used over a long period in a power plant, and were compared for the difference of creep rupture strength depending on the gage-section diameter. Specimens of 2.25 Cr steel with a gage section diameter of 1 mm and 6 mm were also compared for the difference of creep rupture strength. As a result, 12 Cr and 2.25 Cr steels were found to have different size dependence of creep rupture strength, and the difference was studied on the effect of specimen diameter and thickness of oxidation film.
ISSN:	1884-8346