Journal of Welding and Joining

  • 제26권4호
  • /
  • Pages.73-78
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  • 2008
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
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가스텅스텐아크 용접한 클래드(A4045/A3003) 알루미늄 합금의 기계적성질 및 미세조직

Microstructure and Mechanical Properties of Clad(A4045/A3003) Al Alloy by Gas Tungsten Arc Welding

  • 김기빈 (순천대학교 재료.금속공학과) ;
  • 국진선 (한려대학교 신소재공학과) ;
  • 윤동주 (순천대학교 산학협력단) ;
  • 김병일 (순천대학교 산학협력단) ;
  • 이일천 (알메탈㈜ 기술연구소)
  • Kim, Ki-Bin (Department of Materials and Metallurgical Engineering, Sunchon University) ;
  • Gook, Jin-Seon (Dept. of Advanced Materials Engineering, Hanlyo University) ;
  • Yoon, Dong-Ju (Corps of Industrial-Academic Cooperation, Sunchon University) ;
  • Kim, Byung-Il (Corps of Industrial-Academic Cooperation, Sunchon University) ;
  • Lee, Il-Cheon (Research Center, ALMETAL Industrial Co., Ltd.)
  • 발행 : 2008.08.31
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초록

In this paper, research was the variation of microstructure and mechanical properties of clad(A4045/A3003) Al alloy sheet by gas tungsten arc welding. Tensile properties of the gas tungsten arc welding joint decreased because of the softened heat affected zone(HAZ). The hardness of HAZ was lower than that of base metal, because relieved the work hardening effect of the welding heat. Hardness distribution of the weld zone with the base metal appears similarly, but the hardness of HAZ decreased remarkably. The microstructure in the weld zone of A4045 clad layer was formed a coarse columner grains of Si-rich. In the case of large weld heat input, the Si of the A4045 were diffused and until A3003 weld zone they decreased the strength.

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참고문헌

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