Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Mechanical Properties of High Strength Ductile Cast Iron for Brake Caliper

브레이크 캘리퍼용 고강도 구상흑연주철의 기계적 특성

  • Bae, Cha-Hurn (Dept. of Materials Sci. and Eng.,Pukyong National University) ;
  • Lee, Woo-Chul (Taejoo Industrial Co.,LTD.) ;
  • Park, Heung-Il (Dept. of Materials Sci. and Eng.,Pukyong National University) ;
  • Jeong, Hae-Yong (Dept. of Materials Sci. and Eng.,Pukyong National University)
  • 배차헌 (부경대학교 공과대학 신소재공학부) ;
  • 이우철 (태주실업(주)) ;
  • 박흥일 (부경대학교 공과대학 신소재공학부) ;
  • 정해용 (부경대학교 공과대학 신소재공학부)
  • Published : 2008.07.20
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Abstract

Mechanical properties of high strength ductile cast iron for the brake caliper of truck were investigated. Meanwhile the nodularity and nodule count decreased respectively from 92 and 95 to 80% and $60/mm^2$ with increased thickness, the volume fractions of graphite, pearlite and ferrite didn't change much and were in the ranges of 12.0-13.5, 52.6-55.0 and 33.0-35.2, respectively. Hardness, tensile strength and elongation in the mechanical properties of the castings of brake caliper were BHN 241, 710 MPa and 9.5%, respectively.

Keywords

References

  1. C.Labrecque & M.Gagn, Canadian Metallurgical Quarterly, "Review Ductile Iron: Fifty Years of Continuous Development", 37(5), 1998, 343-378 https://doi.org/10.1016/S0008-4433(98)00031-7
  2. A.Trudel & M.Gagn, Canadian Metallurgical Quarterly, "Effect of Composition and Heat Treatment Parameters on the Characteristics of Austempered Ductile Iron", 36(5), 1997, 289-298 https://doi.org/10.1016/S0008-4433(97)00028-1
  3. R.D.Forrest and H.Wolfensberger, AFS Transactions, "Improved Ladle Treatment of Ductile Iron by Means of the Tundish Cover", .84, 1980, 421-426
  4. Y.S.Lerner and G.V.Panteleev, Foundry Management and Technology, "Mg Treatments in Ductile Iron Production, Part 1", 2002, 25-31
  5. Y.S.Lerner and G.V.Panteleev, Foundry Management and Technology, "Mg Treatments in Ductile Iron Production, Part 2", 2002, 24-29
  6. Y.S.Lerner and D.Craig, Foundry Trade Journal, "In-Mould Treatment Processes in Iron Foundry Practice", 2002, 24-27
  7. M.Jonuleit and B.Ebert, Foundry Trade Journal, "Ductile Iron Production with Cored Wire", 2001, 16-24
  8. Heung-Il Park, Dissertation, "The effects of Alloying Elements on the Microstructure and Mechanical Properties of Compacted Vermicular Graphite Cast Iron", Ulsan University, (1989)
  9. Martin Gagn, The Sorelmetal Book of Ductile Iron (Published by RIO TINTO IRON & TITANIUM INC.), Canada, 2003, 131-142