A Study on Fatigue Life Improvement of Welded Joints using Elongated Bead Welding with Low Transformation Temperature Welding Material

• MATSUZAKI Takuya

  Sanwa Dock Co., Ltd

• MURAKAWA Hidekazu

  Joining and Welding Research Institute, Osaka University

• MA Ninshu

  Joining and Welding Research Institute, Osaka University

• TSUTSUMI Seiichiro

  Joining and Welding Research Institute, Osaka University

• HIRAOKA Kazuo

  Joining and Welding Research Institute, Osaka University

• OSAWA Naoki

  Graduate School of Engineering, Osaka University

• OKADA Koichi

  Graduate School of Engineering, Nagasaki Institute of Applied Science

• TANINO Tadakazu

  National Institute of Technology, Kurume College

• SHIGA Chiaki

  SHIGA Strength&Weld Research Institute

• YAJIMA Hiroshi

  Yajima Material Integrity Laboratory

Bibliographic Information

Other Title

• 低変態温度溶接材料を用いた伸長ビード溶接による疲労寿命延伸効果に関する一考察
• 低変態温度溶接材料を用いた伸長ビート溶接による疲労寿命延伸効果に関する一考察
• テイヘンタイ オンド ヨウセツ ザイリョウ オ モチイタ シンチョウ ビート ヨウセツ ニ ヨル ヒロウ ジュミョウ エンシン コウカ ニ カンスル イチ コウサツ

Abstract

In our previous study, it was shown that the fatigue life of the boxing fillet welded joint was enhanced by about 10 times by applying the elongated bead welding with 40 mm bead length to the welded joint by using low transformation temperature (L. T. T. ) welding material. <br>In this study, to investigate practical use of the elongated bead welding with L. T. T. welding material, the followings were discussed, (1) The estimation of the residual stress distribution of boxing fillet welded joint to which the elongated bead welding with L. T. T. welding material was applied, (2) The work load and time of elongated bead welding on site welding, (3) The fatigue life enhancing effect of two elongated bead welding joints using different L. T. T. welding materials, L. T. T. 10Cr-10Ni filler metal (LTT1) and L. T. T. 6. 5Mn filler metal (LTT2) , (4) The fatigue life enhancing effect by using LTT2 with and without elongated bead applied to repair welding of boxing fillet welded joint with fatigue crack, (5) The fracture toughness of weld metal with LTT1 welding material, and so on.

Journal

• Journal of High Pressure Institute of Japan

  Journal of High Pressure Institute of Japan 58 (1), 22-38, 2020

  HIGH PRESSURE INSTITUTE OF JAPN(HPI)

Keywords

• low transformation temperature welding material
• boxing fillet welded joint
• elongated bead
• elongated bead length
• fatigue strength improvement
• weld metal fracture toughness
• high strength ship hull steel plate

Details

• CRID: 1390002184878454912
• NII Article ID: 130007803700
• NII Book ID: AN00011762
• DOI: 10.11181/hpi.58.22
• ISSN: 13479598
• ISSN: 03870154
• NDL BIB ID: 030263663
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030263663
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed