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

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概要

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• 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.

著者

• 楠元 淳一

  九州電力（株）苓北発電所

• 金谷 章宏

  九州電力（株）

• 村田 欣三

  （株）神戸工業試験場

• 鶴井 孝文

  （株）神戸工業試験場

• 渡邉 肇

  九電産業（株）

• 楠元 淳一

  九州電力（株）

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

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