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Enhanced densification of Ti-6Al-4V/TiC powder blends by transformation mismatch plasticity

Published online by Cambridge University Press:  10 May 2013

Bing Ye
Affiliation:
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
Marc R. Matsen
Affiliation:
Boeing Research and Technology, The Boeing Company, Seattle, Washington 98124
David C. Dunand*
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Ti-6Al-4V alloy with attractive properties such as corrosion resistance and high specific strength has a broad impact on daily life in the field of aerospace and medicine. The addition of TiC to Ti-6Al-4V is to further improve abrasion resistance and hardness. To have a low processing cost and precise control of the TiC volume fraction and distribution, the composite is densified with a blend of Ti-6Al-4V and TiC powders through a powder metallurgy route. The densification kinetics of the blend is studied for uniaxial die pressing (i) under isothermal conditions at 1020 °C, where β-Ti-6Al-4V deforms by creep and (ii) upon thermal cycling from 860 to 1020 °C, where the α-β transformation leads to transformation superplasticity. Densification curves for both isothermal and thermal cycling for various applied stresses and TiC fractions are in general agreement with predictions from continuum models and finite element simulation models performed at the powder level.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

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References

REFERENCES

Boyer, R.R.: An overview on the use of titanium in the aerospace industry. Mater. Sci. Eng., A 213(1–2), 103 (1996).CrossRefGoogle Scholar
Geetha, M., Singh, A.K., Asokamani, R., and Gogia, A.K.: Ti based biomaterials, the ultimate choice for orthopaedic implants - a review. Prog. Mater. Sci. 54(3), 397 (2009).CrossRefGoogle Scholar
Abkowitz, S.: Titanium: From jets to biomedical devices. Adv. Mater. Process. 163(7), 53 (2005).Google Scholar
Abkowitz, S., Abkowitz, S., Fisher, H., and Schwartz, P.: CermeTi® discontinuously reinforced Ti-matrix composites: Manufacturing, properties, and applications. JOM. 56(5), 37 (2004).CrossRefGoogle Scholar
Choe, H., Abkowitz, S., and Abkowitz, S.M.: Influence of processing on the mechanical properties of Ti-6Al-4V-based composites reinforced with 7.5 mass% TiC and 7.5 mass% W. Mater. Trans. 49(9), 2153 (2008).CrossRefGoogle Scholar
Lu, J., Qin, J., Chen, Y., Zhang, Z., Lu, W., and Zhang, D.: Superplasticity of coarse-grained (TiB+TiC)/Ti-6Al-4V composite. J. Alloys Compd. 490(1–2), 118 (2010).CrossRefGoogle Scholar
Taylor, N., Dunand, D.C., and Mortensen, A.: Initial stage hot pressing of monosized Ti and 90% Ti-10% TiC powders. Acta Mater. 41(3), 955 (1993).CrossRefGoogle Scholar
Yolton, C.: The pre-alloyed powder metallurgy of titanium with boron and carbon additions. JOM 56(5), 56 (2004).CrossRefGoogle Scholar
Ranganath, S.: A review on particulate-reinforced titanium matrix composites. J. Mater. Sci. 32(1), 1 (1997).Google Scholar
Wilkinson, D.S. and Ashby, M.F.: Pressure sintering by power law creep. Acta Metall. Mater. 23(11), 1277 (1975).CrossRefGoogle Scholar
Arzt, E., Ashby, M., and Easterling, K.: Practical applications of hotisostatic pressing diagrams: Four case studies. Metall. Mater. Trans. A. 14(1), 211 (1983).CrossRefGoogle Scholar
Helle, A.S., Easterling, K.E., and Ashby, M.F.: Hot-isostatic pressing diagrams: New developments. Acta Metall. Mater. 33(12), 2163 (1985).CrossRefGoogle Scholar
Schuh, C., Noel, P., and Dunand, D.C.: Enhanced densification of metal powders by transformation-mismatch plasticity. Acta Mater. 48(8), 1639 (2000).CrossRefGoogle Scholar
Schuh, C. and Dunand, D.C.: Non-isothermal transformation-mismatch plasticity: Modeling and experiments on Ti-6Al-4V. Acta Mater. 49(2), 199 (2001).CrossRefGoogle Scholar
Ye, B., Matsen, M.R., and Dunand, D.C.: Enhanced densification of Ti-6Al-4V powders by transformation-mismatch plasticity. Acta Mater. 58(11), 3851 (2010).CrossRefGoogle Scholar
Greenwood, G.W. and Johnson, R.H.: The deformation of metals under small stresses during phase transformations. Philos. Trans. R. Soc. London, Ser. A 283(1394), 403 (1965).Google Scholar
Zwigl, P. and Dunand, D.: Transformation superplasticity of zirconium. Metall. Mater. Trans. A. 29(10), 2571 (1998).CrossRefGoogle Scholar
Dunand, D.C., Schuh, C., and Goldsby, D.L.: Pressure-induced transformation plasticity of H2O ice. Phys. Rev. Lett. 86(4), 668 (2001).CrossRefGoogle Scholar
Schuh, C.A. and Dunand, D.C.: Enhanced densification of zinc powders through thermal cycling. Acta Mater. 50(6), 1349 (2002).CrossRefGoogle Scholar
Ottino, J.M. and Lueptow, R.M.: Material science: On mixing and demixing. Science 319(5865), 912 (2008).CrossRefGoogle ScholarPubMed
Shi, D., Abatan, A.A., Vargas, W.L., and McCarthy, J.J.: Eliminating segregation in free-surface flows of particles. Phys. Rev. Lett. 99(14), 148001 (2007).CrossRefGoogle ScholarPubMed
Li, Q., Chen, E., Bice, D. and Dunand, D.: Transformation superplasticity of cast titanium and Ti-6Al-4V. Metall. Mater. Trans. A 38(1), 44 (2007).CrossRefGoogle Scholar
Frost, H.J. and Ashby, M.F.: Deformation-Mechanism Maps: The Plasticity and Creep of Metals and Ceramics, 1st ed. (Pergamon Press, Oxford, UK, 1982).Google Scholar
Schuh, C. and Dunand, D.C.: An overview of power-law creep in polycrystalline β-titanium. Scr. Mater. 45(12), 1415 (2001).CrossRefGoogle Scholar
Zhu, J., Liaw, P., Corum, J., and McCoy, H.: High-temperature mechanical behavior of Ti-6Al-4V alloy and TiC p/Ti-6Al-4V composite. Metall. Mater. Trans. A. 30(6), 1569 (1999).CrossRefGoogle Scholar
Daymond, M., Lund, C., Bourke, M. and Dunand, D.: Elastic phase-strain distribution in a particulate-reinforced metal-matrix composite deforming by slip or creep. Metall. Mater. Trans. A. 30(11), 2989 (1999).CrossRefGoogle Scholar
Dunand, D.C. and Myojin, S.: Biaxial deformation of Ti-6Al-4V and Ti-6Al-4V/TiC composites by transformation-mismatch superplasticity. Mater. Sci. Eng., A 230(1–2), 25 (1997).CrossRefGoogle Scholar
Zwigl, P. and Dunand, D.: Transformation superplasticity of iron and Fe/TiC metal matrix composites. Metall. Mater. Trans. A. 29(2), 565 (1998).CrossRefGoogle Scholar
Schuh, C. and Dunand, D.C.: Whisker alignment of Ti-6Al-4V/TiB composites during deformation by transformation superplasticity. Int. J. Plast. 17(3), 317 (2001).CrossRefGoogle Scholar
Schuh, C. and Dunand, D.C.: Load transfer during transformation superplasticity of Ti-6Al-4V/TiB whisker-reinforced composites. Scr. Mater. 45(6), 631 (2001).CrossRefGoogle Scholar
Frary, M., Schuh, C., and Dunand, D.C.: Kinetics of biaxial dome formation by transformation superplasticity of titanium alloys and composites. Metall. Mater. Trans. A. 33(6), 1669 (2002).CrossRefGoogle Scholar
Besson, J. and Evans, A.G.: The effect of reinforcements on the densification of a metal powder. Acta Metall. Mater. 40(9), 2247 (1992).CrossRefGoogle Scholar
Martin, C.L. and Bouvard, D.: Study of the cold compaction of composite powders by the discrete element method. Acta Mater. 51(2), 373 (2003).CrossRefGoogle Scholar
Olmos, L., Martin, C.L., and Bouvard, D.: Sintering of mixtures of powders: Experiments and modelling. Powder Technol. 190(1–2), 134 (2009).CrossRefGoogle Scholar
Shackelford, J.F. and Alexander, W.: CRC Materials Science and Engineering Handbook, 3rd ed. (CRC Press, Boca Raton, FL, 2000).CrossRefGoogle Scholar
Dura, O.J., Bauer, E., Vazquez, L., and Lopez de la Torre, M.A.: Depressed thermal conductivity of mechanically alloyed nanocrystalline 10 mol% yttria-stabilized zirconia. J. Phys. D. 43(10), 105407 (2010).CrossRefGoogle Scholar
Ye, B., Matsen, M., and Dunand, D.: Finite-element modeling of titanium powder densification. Metall. Mater. Trans. A. 43(1), 381 (2012).CrossRefGoogle Scholar
Chang, R. and Graham, L.J.: Low-temperature elastic properties of ZrC and TiC. J. Appl. Phys. 37(10), 3778 (1966).CrossRefGoogle Scholar