炭素鋼同種摩擦圧接継手の腐食疲労強度特性の接合方式依存性について

• 大植 義夫

  大阪産業大学

• 中山 英明

  大阪産業大学

• 向井 喜彦

  大阪大学

• 小川 恒一

  大阪府立大学

書誌事項

タイトル別名

• Dependence of Corrosion Fatigue Behavior of Friction Welded Butt Joint on Friction Welding Procedure

抄録

Though friction welded butt joints have come into wider use machine elements and structural members, valid evaluation method of the joint performance, especially under service load conditions, has not been established yet. The reliability of this type of joint has been supported only by empirical knowledge accumulated up to the present. In order to clarify the fatigue behaviors of the joint, we have carried out a series of fatigue tests on several sorts of friction-welded butt joints in ordinaly atmospheric environment, and have revealed that the fatigue strength of the joint is higher than that of the base metal, but the lives show the large scatter. Evaluation of corrosion fatigue behavior of friction-welded joints is also an urgent issue, because some of the joints are practically used in corrosive environments. The main aim of this study is to reveal the relationship between the fiber flow conditions near the weld interface of the joint and their corrosion fatigue resistance. For this purpose, a series of experiments was carried out on four friction-welded butt joint specimens composed of a similar structural carbon steel fabricated by different friction welding conditions. This study covers following four phases : (1) Dependence of fiber flow conditions on friction welding procedure, (2) corrosion responce of the four joints fabricated by different friction welding procedures, (3) fatigue strength behavior of joints with corrosion pits in ordinaly atmospheric environment, and (4) corrosion fatigue resistance of respective joint. The results of this study revealed that the corrosion fatigue resistance of the joint was well correlated with the fiber flow conditions of the joint ; many and deep corrosion pits were generated on the surface area intersecting the fiber flow and the notch effect of the corrosion pits resulted in the reduction of fatigue strength. In other words, joint specimen wishout the surface area intersecting the fiber flow shows excellent corrosion fatigue performance.

収録刊行物

• 溶接学会論文集 : quarterly journal of the Japan Welding Society

  溶接学会論文集 : quarterly journal of the Japan Welding Society 13 (3), 456-462, 1995-08-05

  社団法人溶接学会

キーワード

• Friction welded butt joint
• Fiber flow
• Brake-type method
• Fly-wheel method
• Corrosion pits
• Fatigue strength
• Artificial seawater

詳細情報

• CRID: 1572824502230299904
• NII論文ID: 110003423429
• NII書誌ID: AN1005067X
• ISSN: 02884771
• 本文言語コード: ja
• データソース種別:
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