Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Mechanical Characteristics of Mechanically Alloyed Al-Fe Alloys accroding to Annealing Process

기계적으로 합금화된 Al-Fe합금의 풀림처리에 따른 기계적 특성

  • Seo, H.S. (Dept. of Mechanical Design, Seoul National Polytechnic University) ;
  • Chung, S.C. (Dept. of Mechanical Design, Seoul National Polytechnic University) ;
  • Koo, B.K. (Dept. of Die and Mould Design, Seoul National Polytechnic University)
  • 서휘성 (서울산업대학교 산업대학원 기계설계학과) ;
  • 정석주 (서울산업대학교 기계설계학과) ;
  • 구본권 (서울산업대학교 금형설계과)
  • Published : 1995.09.30
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Abstract

Mechanical alloying behaviour was investigated after adding 6, 8, 12wt% Fe powder into A1 matrix, respectively, in order to develop Al alloy. And the mechanical characteristics of the alloy which was produced by the above method were studied. The hardness and ultimata tensile strength of the material with different compositions were found to be increased with annealing temperatures and holding times. Intermetallic compound of $Al_3Fe$ and carbide of $Al_4C_3$ phases, which were generated from the different compositions during annealing, were found. It was suggested that enhancement of mechanical properties of Al-Fe alloy system was due to the presence of these preapitates that constrained grain growth and blocked dislocation movement in the alloy system.

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