Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effects of Zr, B and P Additions the Grain Refinement of CuZn36 Alloys.

CuZn36 합금의 입자 미세화에 미치는 Zr, B, P 첨가의 영향

  • Kim, Chung-Keun (Dept. of Mechanical Engineering for Industry, Korea Institute of Technology and Education) ;
  • Lee, Dong-Woo (Metallkunde Institut, TU Berlin, Germany)
  • 김정근 (한국기술교육대학 산업기계공학과) ;
  • 이동우 (독일 베를린공대 금속재료연구소)
  • Published : 1993.04.20
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Abstract

It has been known that the grain refinement of Cu base alloys greatly improved mechanical properties, castability, workability and hot shortness resistance etc. In this study CuZr50, CuP7, CuFe7, CuMg10 binary alloys were added as grain refiners in CuZn36 alloy. The alloys melted in vacuum and controlled in mixed gas conditions and casted at $1050^{\circ}C$. Zr-P-X compound has significantly grain refined but oxygen has been found detrimental to grain refinement. In the case of Zr /B ratio below 4, B acted as grain growth element in this alloy.

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