OS2101 軸受鋼の回転曲げ疲労における内部起点型破壊モードの疲労限度に関する破壊力学的考察

• 小熊 規泰

  富山大学大学院理工学研究部

• 關杉 直矢

  富山大学大学院理工学教育部

• 小竹 康浩

  (株)不二越軸受事業部

書誌事項

タイトル別名

• OS2101 Fracture Mechanics Study on Fatigue Limit in Interior Induced Fracture Mode for Bearing Steel in Rotating Bending

抄録

In order to examine the fatigue limit in interior induced fracture mode for bearing steel, rotating bending fatigue tests were carried out at the stress amplitude 1100MPa below the fatigue limit in surface induced fracture mode. The tests were interrupted at arbitrary number of cycles to charge hydrogen. And then the fatigue tests were continuously carried out. Based on SEM observations of the fracture surfaces, FGA was not formed in all specimens. Fracture mechanics study was performed for FGA formed fracture surfaces. As a result, the relation between the stress intensity factor range of FGA, AKFGA, and number of cycles before hydrogen-charging did not show good correlation. However, AKFGA tended to increase with an increase in the ratio of prediction FGA size to real FGA size. From this relation, AKFGA in which FGA is not formed in very high cycle fatigue regime was estimated.

収録刊行物

• M&M材料力学カンファレンス

  M&M材料力学カンファレンス 2014 (0), _OS2101-1_-_OS2101-3_, 2014

  一般社団法人 日本機械学会

キーワード

• Bearing Steel
• Rotating Bending
• Very High Cycle Fatigue
• Fine Granular Area

詳細情報

• CRID: 1390001205875025920
• NII論文ID: 110009939730
• DOI: 10.1299/jsmemm.2014._os2101-1_
• ISSN: 24242845
• Web Site: https://www.jstage.jst.go.jp/article/jsmemm/2014/0/2014__OS2101-1_/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可