Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Effect of Subzero Treatment on the Damping Capacity of Austempered Ductile Cast Iron

오스템퍼드 구상흑연주철의 감쇠능에 미치는 서브제로 처리의 영향

  • Kang, Chang-Yong (Dept. of Advanced Materials Engineering, Pukyung University) ;
  • Jo, Duck-Ho (Dept. of Advanced Materials Engineering, Pukyung University) ;
  • Kim, Yun-Kyu (Dept. of Advanced Materials Engineering, Pukyung University) ;
  • Han, Hyun-Sung (Dept. of Industrial Fabrication Korea polytechnics) ;
  • Lee, Hae-Woo (Dept. of Advanced Materials Engineering, Donga University) ;
  • Sung, Jang-Hyun (Dept. of Advanced Materials Engineering, Donga University)
  • 강창룡 (부경대학교 신소재공학부) ;
  • 조덕호 (부경대학교 신소재공학부) ;
  • 김윤규 (부경대학교 신소재공학부) ;
  • 한현성 (한국폴리택대학) ;
  • 이해우 (동아대학교 신소재공학과) ;
  • 성장현 (동아대학교 신소재공학과)
  • Received : 2008.09.24
  • Published : 2009.03.25
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Abstract

The effect of sub zero treatment on the damping capacity in austempered ductile cast iron investigated. Austenite transformed in to martensite by subzero treatment, and with the decrease of subzero treatment temperature, volume fraction of martensite increased. Damping capacity of austempered ductile cast iron was highly increased by subzero treatment, with the decrease of subzero treatment temperature, damping capacity was slowly increased. With the decrease of subzero treatment time, damping capacity was rapidly increased to 30 min. and then slowly increased. With the increase of volume fraction of martensite, damping capacity rapidly increasing to 5% and then slowly increased.

Keywords

References

  1. B. Kovacs, Proc. 2nd International Conference on ADI, Ann Arbor 342 (1986)
  2. K. Vennemann, K. Hornung, and G. Fischer, Proc. 2nd International Conference on ADI, Ann Arbor 478 (1986)
  3. C. Y. Kang, J. Kor. Inst. Met. & Mater. 41, 8 (2003)
  4. C. Y. Kang, W. J. Moon, and J. H. Sung, J. Kor. Inst. Met. & Mater. 35, 297 (1997)
  5. P. Shanmugam, P. P. Rao, K. R. Udupa, and N. Venkataraman, J. Mater. Sci. 29, 68 (1994) https://doi.org/10.1007/BF00356546
  6. I. G. Ritchie and Z-L. Pan, Matall. Trans. A 22, 607 (1991) https://doi.org/10.1007/BF02670281
  7. K. Sugimoto, Mean, Inst., Sci., Ind., Res., Osaka Univ., 35, 31 (1978)