Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Spray forming the wear resistant hypereutectic Al-25Si-X alloy and property evaluation

과공정 Al-25Si-X 내마모 합금의 분무 성형 및 특성 평가

  • Lee Jae Chul (Division of Materials Science and Engineering, Korea Institute of Science and Technology) ;
  • Seok Hyun Kwang (Division of Materials Science and Engineering, Korea Institute of Science and Technology) ;
  • Shin Don Soo (R&D Center, Dooray Air Metal Ltd.) ;
  • Lee Ho In (Division of Materials Science and Engineering, Korea Institute of Science and Technology)
  • 이재철 (한국과학기술연구원 재료연구부) ;
  • 석현광 (한국과학기술연구원 재료연구부) ;
  • 신돈수 (두레에어메탈(주) 기술연구소) ;
  • 이호인 (한국과학기술연구원 재료연구부)
  • Published : 1999.05.01
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Abstract

A comprehensive methodology to consolidate the hypereutectic Al-27Si-X alloy via spray forming was investigated in an attempt to judge the feasiblilty of this alloy in applying wear resistant components. Billets having desired shape and microstructures were fabricated using forming parameters obtained from numerical calculations. Prior to tube extrusion of the spray formed billets, effects of various extrusion conditions, such as extrusion ratio, die temperature, and die configuration, on microstructures of the billet were studied. Based on results obtained from the preliminary extrusion tests, the formed billets were then hot extruded into a tubular shape. Various material properties of the extruded billet were measured and compared with the other candidate materials for anti-wear applications.

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