Blended 93W-5.6Ni-1.4Fe powders were sintered via the spark plasma sintering (SPS) technique using heating rates from 10 K min−1 to 380 K min−1 (10 °C min−1 to 380 °C min−1). The kinetics of densification and grain growth were analyzed to identify heating rate effects during the SPS of 93W-5.6Ni-1.4Fe powders. The activation energies for densification were calculated and compared with the experimental values for diffusion and other mass transport phenomena. The results show that for the slowly heated specimens [heating rate <100 K min−1 (100 °C min−1)], densification occurs mainly through dissolution–precipitation of W through the matrix phase and W grain boundary diffusion. The concurrent grain growth is dominated by surface diffusion at a low sintering temperature and by solution–reprecipitation and Ni-enhanced W grain boundary diffusion at a higher temperature. For the specimens sintered with heating rates higher than 100 K min−1 (100 °C min−1), the apparent activation energy value for the mechanism controlling densification is a strong function of the relative density, and fast densification controlled by multiple diffusion mechanisms and intensive viscous flow dominates over the grain growth. High SPS heating rate is favorable to obtain high density and fine-grained tungsten heavy alloys.
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References
M. Omori: Mater. Sci. Eng. A, 2000, vol. 287, pp. 183-188.
R. Orrù, R. Licheri, A.M. Locci, A. Cincotti, and G. Cao: Mater. Sci. Eng. R, 2009, vol. 63, pp. 127-287.
Z.A. Munir, U. Anselmi-Tamburini, and M. Ohyanagi: J. Mater. Sci., 2006, vol. 41, pp. 763-777.
Z.A. Munir, D.V. Quach, and M. Ohyanagi: J. Am. Ceram. Soc., 2011, vol. 94, pp. 1-192.
J.E. Garay: Annu. Rev. Mater. Res., 2010, vol. 40, pp. 445-468.
Y. Aman, V. Garnier, and E. Djurado: J. Am. Ceram. Soc., 2011, vol. 94, pp. 2825-2833.
K.R. Anderson, J.R. Groza, M. Fendorf, and C.J. Echer: Mater. Sci. Eng. A, 1999, vol. 270, pp. 278-282.
J.R. Groza and A. Zavaliangos: Mater. Sci. Eng. A, 2000, vol. 287, pp. 171-177.
N. Toyofuku, T. Kuramoto, T. Imai, M. Ohyanagi, and Z.A. Munir: J. Mater. Sci., 2012, vol. 47, pp. 2201-2205.
R.M. German: Sintering Theory and Practice, Wiley, New York, NY, 1996, p. 482.
L.A. Stanciu, V.Y. Kodash, and J.R. Groza: Metall. Mater. Trans. A, 2001, vol. 32A, pp. 2633-2638.
Y. Zhou, K. Hirao, Y. Yamauchi, and S. Kanzaki: J. Eur. Ceram. Soc., 2004, vol. 24, pp. 3465-3470.
Z. Shen, M. Johnsson, Z. Zhao, and M. Nygren: J. Am. Ceram. Soc., 2002, vol. 85, pp. 1921-1927.
B. Kim, K. Hiraga, K. Morita, and H. Yoshida: J. Eur. Ceram. Soc., 2009, vol. 29, pp. 323-327.
Z. Zhang, F. Wang, L. Wang, and S. Li: : Mater. Sci. Eng. A, 2008, vol. 476, pp. 201-205.
R. Ohser-Wiedemann, U. Martin, H.J. Seifert, and A. Müller: Int. J. Refract. Met. Hard Mater., 2010, vol. 28, pp. 550-557.
V.Y. Kodash, J.R. Groza, K.C. Cho, B.R. Klotz, and R.J. Dowding: : Mater. Sci. Eng. A, 2004, vol. 385, pp. 367-371.
E.A. Olevsky, S. Kandukuri, and L. Froyen: J. Appl. Phys., 2007, vol. 102, pp 114913-114924.
K. Hu, X. Li, S. Qu, and Y. Li: Metall. Mater. Trans. A, 2013, vol. 44A, pp. 923-933.
K. Hu, X. Li, C. Yang, and Y. Li: Trans. nonferrous Met. Soc. China, 2011, vol. 21, pp. 493-501.
J. Räthel, M. Herrmann, and W. Beckert: J. Eur. Ceram. Soc., 2009, vol. 29, pp. 1419-1425.
A. Zavaliangos, J. Zhang, M. Krammer, and J.R. Groza: Mater. Sci. Eng. A, 2004, vol. 379, pp. 218-228.
S.J. Park, J.M. Martin, J.F. Guo, J.L. Johnson, and R.M. German: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 3337-3346.
ASTM: Standard Test Methods for Determining Average Grain Size, ASTM Designation E112-96, ASTM, Philadelphia, PA, 1996, p. 16.
U. Anselmi-Tamburini, J.E. Garay, and Z.A. Munir: Mater. Sci. Eng. A, 2005, vol. 407, pp. 24-30.
M.Y. Chu, M.N. Rahaman, and L.C. DeJonghe: J. Am. Ceram. Soc., 1991, vol. 74, pp. 1217-1225.
J. Zhang: Ph.D. Thesis, Drexel University, Philadelphia, 2004.
K. Vanmeensel, A. Laptev, J. Hennicke, J. Vleugels, and O. Van der Biest: Acta Mater., 2005, vol. 53, pp. 4379–88.
X. Wang, S.R. Casolco, G. Xu, and J.E. Garay: Acta Mater., 2007, vol. 55, pp. 3611-3622.
U. Anselmi-Tamburini, S. Gennari, J.E. Garay, and Z.A. Munir: Mater. Sci. Eng. A, 2005, vol. 394, pp. 139-148.
X. Song, X. Liu, and J. Zhang: J. Am. Ceram. Soc., 2006, vol. 89, pp. 494-500.
P. Villars, A. Prince, and H. Okamoto: Handbook of Ternary Alloy Phase Diagrams, vol. 8, ASM International, Materials Park, OH, 1997, p. 10670.
M.N. Rahaman: Ceramics Processing and Sintering, 2nd ed., Marcel Dekker, New York, NY, 2003.
J. Langer, M.J. Hoffmann, and O. Guillon: Acta Mater., 2009, vol. 57, pp. 5454-5465.
J. Langer, M.J. Hoffmann, and O. Guillon: J. Am. Ceram. Soc., 2011, vol. 94, pp. 24-31.
J. Langer, M.J. Hoffmann, and O. Guillon: J. Am. Ceram. Soc., 2011, vol. 94, pp. 2344-2353.
S.J. Park, J.M. Martin, J.F. Guo, J.L. Johnson, and R.M. German: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 2837-2848.
J.T. Smith: J. Appl. Phys., 1965, vol. 36, pp. 595-598.
J.S. Lee and I.H. Moon: Scr. Metall., 1987, vol. 21, pp. 1175-1178.
D. F. Heaney, R. M. German, and I. S. Ahn: Adv. Powder Metall. Part. Mater., 1993, vol. 2, pp. 169-180.
J.L. Johnson and R.M. German: Metall. Mater. Trans. B, 1996, vol. 27B, pp. 901-909.
T. Vasilos and J.T. Smith: J. Appl. Phys., 1964, vol. 35, pp. 215-217.
R.L. Coble: J. Appl. Phys., 1961, vol. 32, pp. 787-792.
Z. Gao, G. Viola, B. Milsom, I. Whitaker, H. Yan, and M.J. Reece: Metall. Mater. Trans. B, 2012, vol. 43B, pp. 1608-1614.
I.H. Moon, K.Y. Kim, S.T. Oh, and M.J. Suk: J. Alloys Compd., 1993, vol. 201, pp. 129-137.
Acknowledgments
This work was supported by the National Basic Research Program of China (No. 2010CB635104), the National Nature Science Foundation (No. 51174095), the Fundamental Research Funds for the Central Universities (No. 2012ZG0006), and the Program for New Century Excellent Talents in University (No. NCET-10-0364).
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Hu, K., Li, X., Qu, S. et al. Effect of Heating Rate on Densification and Grain Growth During Spark Plasma Sintering of 93W-5.6Ni-1.4Fe Heavy Alloys. Metall Mater Trans A 44, 4323–4336 (2013). https://doi.org/10.1007/s11661-013-1789-5
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DOI: https://doi.org/10.1007/s11661-013-1789-5