ＡＺ９１Ｄマグネシウム合金チクソモールド薄板の摩擦撹はん溶接性

DOI Web Site 被引用文献18件 参考文献25件

書誌事項

タイトル別名
  • Weldability of friction stir welding of AZ91D magnesium alloy thixomolded sheet.
  • AZ91Dマグネシウム合金チクソモールド薄板の摩擦撹拌溶接性
  • AZ91D マグネシウム ゴウキン チクソモールド ウスイタ ノ マサツ カクハン ヨウセツセイ

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抄録

Weldability of Friction Stir Welding (FSW) of AZ91D magnesium alloy thixomolded sheet with 2 mm in thickness was evaluated by changing joining parameters of tool rotating speed and specimen travel speed. Square butt joint with good quality was obtained at the optimum FSW conditions of 50 mm/min of travel speed with 1240 to 1750 rpm of tool rotating speed by using a tool with 12 mm of shoulder diameter, 3 mm of pin diameter and 2 mm of pin length. Higher travel speed or lower rotating speed made a lack of bonding in the joint. Stir zone in a central part of the joint consisted of very fine recrystallized structure with 2∼5 μm in mean grain size. Hardness of stir zone increased slightly with decreasing mean grain size. Transverse tensile test of FSW joint resulted in the fracture at base metal. The tensile strength of stir zone showed 330∼360 MPa, much higher than that of base metal, about 250 MPa.

収録刊行物

  • 軽金属

    軽金属 51 (10), 528-533, 2001

    一般社団法人 軽金属学会

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