Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Sn Effects on Microstructure and Mechanical Properties of Ultrafine Ti-Fe-Sn Alloys

Sn 첨가에 따른 극미세 Ti-Fe-Sn 합금의 미세조직 및 기계적 성질 변화

  • Han, Jun-Hee (Department of Advanced Mateials Engineering, Sejong University) ;
  • Song, Gi-An (Department of Advanced Mateials Engineering, Sejong University) ;
  • Pi, Dong-Hyouk (Department of Advanced Mateials Engineering, Sejong University) ;
  • Bang, Chang-Wook (Department of Advanced Mateials Engineering, Sejong University) ;
  • Kim, Ki-Buem (Department of Advanced Mateials Engineering, Sejong University)
  • 한준희 (세종대학교 신소재공학과) ;
  • 송기안 (세종대학교 신소재공학과) ;
  • 피동혁 (세종대학교 신소재공학과) ;
  • 방창욱 (세종대학교 신소재공학과) ;
  • 김기범 (세종대학교 신소재공학과)
  • Published : 2008.03.20
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Abstract

In the present study, microstructural evolution and mechanical properties of Ti-Fe-Sn ultrafine eutectic alloys have been investigated. Ultrafine eutectic microstructure consisting of a mixture of ${\beta}$-Ti solid solution and TiFe intermetallic compound homogeneously formed in $(Ti_{70.5}Fe_{29.5})_{100-x}Sn_x$ alloys with x = 0, 1 and 3. Addition of Sn is effective to modify the eutectic colony into the spherical shape with decreasing the lamellar spacing and colony size. This results in enhancing the macroscopic plasticity up to 3.1% of the Ti-Fe-Sn ultrafine eutectic alloys.

Keywords

References

  1. William F. Smith: McGrawHill, 'Structure and properties of engineering alloys' 2^ Edition, 1993
  2. O. S. Kwon: J Kor instmet & mater, 'Effect of anodizing process conditions on surface activation of Ti-6AI-1Nb alloy' 43 (2005) 117
  3. A. L. Greer: Science, 'Metallic glasses', 267 (1995) 1947-1953 https://doi.org/10.1126/science.267.5206.1947
  4. H. Jones, Aluminium alloys, 'Developments in aluminum alloys by solidification at higher cooling rates', 54 (1978) 274-281
  5. K. B. Kim, J. Das, X. D. Wang, X. Zhang, J. Eckert and S. Yi: Philos. Mag. Lett., 'Effect of Sn on microstructure and mechanical properties of (Ti-Cu)-based bulk metallic glasses', 86 (2006)479 https://doi.org/10.1080/09500830600871210
  6. G He, J. Eckert, W. Loser, and L. Schultz: Nature Mat, 'Novel Tibased nanostrueture-dendrite composite with enhanced plasticity' 2 (2003) 33-37 https://doi.org/10.1038/nmat792
  7. D. V. Louzguine, H. Kato, A. Inoue: Phil. Mag. Lett. 'Highstrength hypereutectic Ti-Fe-Co bulk alloy with good ductility' 84 (2004) 359-364 https://doi.org/10.1080/09500830410001728336
  8. J. Das, W. Loser, U. Kuhn, J. Eckert, S. K. Roy, L. Schultz : Appl. Phys. Lett. 'High-strength Ti-base ultrafine eutectic with enhanced ductility', 87 (2003) 161907 https://doi.org/10.1063/1.2105998
  9. J. Das, W. Loser, U. Kuhn, J. Eckert, S. K. Roy, L. Schultz: Appl. Phys. Lett. 'High-strength Zr-Nb-(Cu,Ni,Al) composites with enhanced plasticity' 82 (2003) 4690 https://doi.org/10.1063/1.1587254
  10. B. L. Shen, H. Men, A. Inoue: Appl. Phys. Lett, 'Fe-based bulk glassy alloy composite containing in situ formed -(Fe,Co) and $(Fe,Co)_{23}B_6$ microcrystalline grains' 89 (2006) 101915 https://doi.org/10.1063/1.2348737
  11. J. M. Park, K. B. Kim, W. T. Kim and D. H. Kim: Appl. Phys. Lett. 'Deformation-induced rotational eutectic colonies containing length-scale heterogeneity in an ultrafine eutectic $Fe_{83}Ti_7Zr_6B_4$ alloy', 91 (2007) 131907 https://doi.org/10.1063/1.2905283
  12. H. Ma, J. Xu, E. Ma : Appl. Phys. Lett. 'Mg-based bulk metallic glass composites with plasticity and high strength' 83 (2003) 2793 https://doi.org/10.1063/1.1616192
  13. K. B. Kim, J. Das, W. Xu, Z. F. Zhang, and J. Eckert : Acta.Mat. 'Microscopic deformation mechanism of a $Ti_{66.1}Nb_{13.9}Ni_{4.8}Cu_8Sn_{7.2}$ nanostructure-dendrite composite', 54 (2006) 3701 https://doi.org/10.1016/j.actamat.2006.04.006
  14. K. B. Kim, J. Das, F. Baier, and J. Eckert: Appl. Phys. Lett, 'Propagation of shear bands in $Ti_{66.1}Cu_8Ni_{4.8}Sn_{7.2}Nb_{13.9}$ nanostructure-dendrite composite during deformation', 86 (2005) 171909 https://doi.org/10.1063/1.1920424
  15. J. M. Park, S. W. Sohn, D. H. Kim, K. B. Kim, W. T. Kim ans J. Eckert: Appl. Phys. Lett. 'Propagation of shear bands and accommodation of shear strain in the $Fe_{56}Nb_4AI_{40} $ultrafine eutectic-dendrite composite' 92 (2008) 091910 https://doi.org/10.1063/1.2892038