Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
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Microstructures and mechanical properties with the different Sc content of AA2519 FSW joint

스칸듐(Sc) 함량이 다른 2519 알루미늄 합금 마찰교반접합부의 미세조직 및 기계적 특성

  • 이창용 (성균관대학교 신소재공학부) ;
  • 최돈현 (성균관대학교 신소재공학부) ;
  • 표성은 (성균관대학교 신소재공학부) ;
  • 연윤모 (수원과학대학 신소재응용과) ;
  • 정승부 (성균관대학교 신소재공학부)
  • Published : 2007.11.15
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Abstract

The microstructures and mechanical properties with the different Sc content of AA2519 FSW joint were investigated in this study. The sound FSW joints were obtained under applied all welding conditions such as the Sc content and the tool rotation speed. The grain size of the stir zone decreased slightly with increasing the Sc content. And the ultimate tensile strength increased and elongation decreased with increasing the Sc content. The intermetallic compound contained the Sc is considered to bring out the improvement of mechanical property in FSW joint.

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