2024-T3 アルミ合金板FSW突合わせ継ぎ手部の構成式の決定 : 面内引張り試験と板厚方向圧縮試験

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  • 横山 隆
    岡山理科大学工学部機械システム工学科

書誌事項

タイトル別名
  • Constitutive Modeling of Mechanical Behavior of Friction Stir Welded AA2024-T3 Butt Joints under In-plane Tension and Through-thickness Compression
  • 2024-T3 アルミ ゴウキンバン FSW ツキアワセ ツギテブ ノ コウセイシキ ノ ケッテイ : メン ナイ ヒッパリ シケン ト イタアツ ホウコウ アッシュク シケン

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抄録

In-plane tensile and through-thickness compressive stress-strain characteristics of Al alloy 2024-T3 and its butt welds produced by the friction stir welding (FSW) proocess are studied. FS welded AA2024-T3 butt joints are produced under a fixed set of appropriate welding conditions. Micro-hardness tests are performed to examine the microstructural change occurring during the FSW process. In-plane tensile and through-thickness compressive tests on the base material and the FS weld are carried out with an Instron testing machine. Flat tension specimens are machined perpendicular to the weld line of the FS weld. Cylindrecal compression specimens are machined along the thickness direction of the base material, heat-affected zones and nugget regions in the FS weld. Constitutive modeling of the in-plane tensile and through-thickness compressive stress-strain behavior is conducted using a rare-independent Ramberg-Osgood equation. It is shown that their tensile and compressive stress-strain behavior can be well described by the Ramberg-Osgood constitutive equation.

収録刊行物

  • 軽金属溶接

    軽金属溶接 50 (10), 395-402, 2012

    一般社団法人 軽金属溶接協会

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