改良9Cr-1Mo鋼のクリープ特性に及ぼす試験片寸法および酸素分圧の影響

• 金山 英幸

  国立研究開発法人日本原子力研究開発機構

• 旭吉 雅健

  福井大学 学術研究院　工学系部門工学領域

• 伊藤 隆基

  立命館大学 理工学部 機械工学科

• 小川 文男

  立命館大学 理工学部 機械工学科

• 若井 隆純

  国立研究開発法人日本原子力研究開発機構

書誌事項

タイトル別名

• Effect of Specimen Size and Oxygen Partial Pressure on Creep Characteristics for Mod. 9Cr-1Mo Steel
• カイリョウ 9Cr-1Moコウ ノ クリープ トクセイ ニ オヨボス シケンヘン スンポウ オヨビ サンソ ブンアツ ノ エイキョウ

抄録

This study presents creep characteristics of Mod. 9Cr-1Mo steel with various sized specimens and environment. Tensile creep tests were performed using three different sizes of specimen and three different types of testing environment. Creep specimens are a bulk specimen which has φ 6mm and 30mm in gage length, a miniature specimen which has φ 2mm and 10mm in gage length and a thin plate specimen which has 0.76mm in thickness, 1.5mm in width and 7.62mm in gage length. Three different types of testing environment are air, 99.99% Ar gas and vacuum. In the same environmental condition, there was no effect of specimen size on time to rupture. Time to rupture of Mod. 9Cr-1Mo steel in Ar gas was shorter than that in air and vacuum. Oxide thickness is not dominant factor in time to rupture. Fracture mode at specimen surface in Ar gas might be dominant factor in shorter time to rupture. Effect of specimen size and environment on creep strength of Mod. 9Cr-1Mo steel was evaluated on the basis of thinning effect.

収録刊行物

• 材料

  材料 66 (2), 86-92, 2017

  公益社団法人 日本材料学会

キーワード

• Creep
• Mod. 9Cr-1Mo steel
• Miniature specimen
• Effect of specimen size
• Effect of oxygen
• partial pressure

詳細情報

• CRID: 1390001205446188928
• NII論文ID: 130005240493
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.66.86
• ISSN: 18807488
• ISSN: 05145163
• NDL書誌ID: 027994356
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027994356
• Web Site: https://www.jstage.jst.go.jp/article/jsms/66/2/66_86/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可