Low Cycle and Thermo-Mechanical Fatigue of Friction Welded Dissimilar Superalloys Joint

• SAKAGUCHI Motoki

  Department of Mechanical Engineering, Nagaoka University of Technology

• SANO Atsushi

  Department of Mechanical Engineering, Nagaoka University of Technology

• TRAN Tra Hung

  Department of Mechanical Engineering, Nagaoka University of Technology

• OKAZAKI Masakazu

  Department of Mechanical Engineering, Nagaoka University of Technology

• SEKIHARA Masaru

  Hitachi Ltd., Material Research Laboratory

抄録

The high temperature strengths of the dissimilar friction welded superalloys joint between the cast polycrystalline Mar-M247 and the forged IN718 alloys have been investigated under low cycle and thermo-mechanical fatigue loadings, in comparison with those of the base metals. The experiments showed that the lives of the dissimilar joints were significantly influenced by the test conditions and loading modes. Not only the lives themselves but also the failure positions and mechanisms were sensitive to the loading mode. The fracture behaviors depending on the loading modes and test conditions were discussed, based on the macroscopic elastic follow-up mechanism and the microstructural inhomogeneity in the friction weld joint.

収録刊行物

• JSMME

  JSMME 2 (12), 1508-1516, 2008

  一般社団法人 日本機械学会

キーワード

• Dissimilar Metals Welding
• Friction Welding
• Low Cycle Fatigue
• Thermo-Mechanical Fatigue
• Elastic Follow-up
• Failure Mechanism
• Heat Affected Zone

詳細情報

• CRID: 1390001205265429760
• NII論文ID: 130000079148
• DOI: 10.1299/jmmp.2.1508
• ISSN: 18809871
• Web Site: http://www.jstage.jst.go.jp/article/jmmp/2/12/2_12_1508/_pdf
• 本文言語コード: en
• 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