Abstract
High-temperature compressive properties of two TiC-added Mo-Si-B alloys with nominal compositions of Mo-5Si-10B-7.5TiC (70Mo alloy) and Mo-6.7Si-13.3B-7.5TiC (65Mo alloy) (at.%) were investigated. The alloys were composed of four constituent phases: Mo solid solution (Moss), Mo5SiB2, (Mo,Ti)C, and (Mo,Ti)2C. The primary phases of the 70Mo and 65Mo alloys were Moss and T2, respectively. The compressive deformability of the 65Mo alloy was significantly limited even at 1600°C because of the elongated, coarse primary T2 phase, whereas the 70Mo alloy had good compressive deformability and a high strength in the test-temperature range of 1000–1600°C; the peak stresses were 1800 MPa at 1000°C, 1230 MPa at 1200°C, and 350 MPa at 1600°C. At and above 1200°C, the peak stress values were more than double those of Mo-6.7Si-7.9B, Ti-Zr-Mo, and Mo-Hf-C alloys. The plastic strain in the 70Mo alloy at temperatures lower than the ductile–brittle transition temperature of T2 was generated by plastic deformation of not only Moss but also of (Mo,Ti)C and (Mo,Ti)2C. This work indicates that (Mo,Ti)C and (Mo,Ti)2C play an important role in determining the high-temperature strength and deformation properties of TiC-added Mo-Si-B alloys.
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References
D.M. Dimiduk and J.H. Perepezko, MRS Bull. 28, 639 (2003).
R. Mitra, Int. Mater. Rev. 51, 13 (2006).
P. Jain and K.S. Kumar, Acta Mater. 58, 2124 (2010).
K. Ito, K. Ihara, K. Tanaka, M. Fujikura, and M. Yamaguchi, Intermetallics 9, 591 (2001).
K. Yoshimi, S. Nakatani, N. Nomura, and S. Hanada, Intermetallics 11, 787 (2003).
D.A. Helmick, G.H. Meier, and F.S. Pettit, Metall. Mater. Trans. A 36A, 3371 (2005).
J.A. Lemberg and R.O. Ritchie, Adv. Mater. 24, 3445 (2012).
J.J. Kruzic, J.H. Schneibel, and R.O. Ritchie, Metall. Mater. Trans. A 36A, 2393 (2005).
R. Sakidja and J.H. Perepezko, Metall. Mater. Trans. A 36A, 507 (2005).
R. Sakidja, J.H. Perepezko, S. Kim, and N. Sekido, Acta Mater. 56, 5223 (2008).
J.H. Perepezko and R. Sakidja, JOM 65, 307 (2013).
Y. Yang, Y.A. Chang, L. Tan, and W. Cao, Acta Mater. 53, 1711 (2005).
Y. Yang, H. Bei, J. Tiley, and E.P. George, J. Alloys Compd. 556, 32 (2013).
M. Krüger, D. Schliephake, P. Jain, K.S. Kumar, G. Schumacher, and M. Heilmaier, JOM 65, 301 (2013).
S. Majumdar, D. Schliephake, B. Gorr, H.-J. Christ, and M. Heilmaier, Metall. Mater. Trans. A 44A, 2243 (2013).
D. Schliephake, M. Azim, K.V. Klinski-Wetzel, B. Gorr, H.-J. Christ, H. Bei, E.P. George, and M. Heilmaier, Metall. Mater. Trans. A 45A, 1102 (2014).
S. Miyamoto, K. Yoshimi, S.-H. Ha, T. Kaneko, J. Nakamura, T. Sato, K. Maruyama, R. Tu, and T. Goto, Metall. Mater. Trans. A 45A, 1112 (2014).
A.P. Alur, N. Chollacoop, and K.S. Kumar, Acta Mater. 52, 5571 (2004).
P. Villars and L.D. Calvert, eds., Pearson’s Handbook of Crystallographic Data for Intermetallic Phases, 2nd ed., Vol. 2 (Materials Park, OH: ASM International, 1991), pp. 1950–1952.
S. Tsurekawa, H. Kurishita, and H. Yoshinaga, J. Nucl. Mater. 169, 291 (1989).
H. Kurishita, R. Matsubara, J. Shiraishi, and H. Yoshinaga, J. Jpn. Inst. Met. 49, 1064 (1985).
S. Tsurekawa, M. Nakashima, and H. Yoshinaga, J. Jpn. Inst. Met. 58, 994 (1994).
Acknowledgements
This work was supported by the funding program for Next Generation World-Leading Researchers (NEXT Program) (No. GR017) and the Advanced Low Carbon Technology Research and Development Program (ALCA) of the Japan Science and Technology Agency (JST).
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Yoshimi, K., Nakamura, J., Kanekon, D. et al. High-Temperature Compressive Properties of TiC-Added Mo-Si-B Alloys. JOM 66, 1930–1938 (2014). https://doi.org/10.1007/s11837-014-1097-6
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DOI: https://doi.org/10.1007/s11837-014-1097-6