Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)
- 2003.11a
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- Pages.256-258
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- 2003
The Evaluation of Weldability for Different Manufactured Mg Alloys in FSW
Mg 합금의 제조 방법에 의한 FSW 접합성 평가
Abstract
Hot-rolled and Extruded plates of AZ type magnesium alloys were successfully joined by friction stir welding(FSW). AZ31B-H24 and AZ61 plates with the thickness of 4mm were used, and the microstructural development in the stir zone were investigated using optical and scanning electron microscopes. The grain size of base metal and stir zone were investigated using the line-intersecter method. Hardness of the stir zone was remarkably increased due to very fine recrystallized grain structure both in AZ3l and AZ6l alloys. Tensile strengths of the FS welded Mg alloys AZ31 and AZ61 were strongly affected by formation of the intermetallic compounds,
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