Abstract
The effect of nine transition elements on the morphology, distribution and composition of MC carbides (MCs) in a nickel-base superalloy, IN-100, was investigated by differential thermal analysis (DTA), microstructural observation and X-ray microanalysis. The doping with tantalum, tungsten and molybdenum caused a significant change in the morphology and distribution of MCs as well as the profile of DTA curve of IN-100. The compositions of the MC in IN-100 were TiC and (Ti0.80Mo0.17V0.03) C, and the doping with niobium, tantalum and tungsten changed significantly the composition of MC. On the other hand, the doping with chromium, vanadium, hafnium and zirconium scarcely changed the composition. In addition to TiC and (Ti, Mo, V) C, zirconium- and hafnium-rich MCs were found in the zirconium- and hafnium-doped alloys, respectively. The effect of the dopants on the composition of MCs could be explained by a relationship between the metallic radius and the free energy of formation for the MC.
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References
P. S. Kotval, J. D. Venables andR. W. Calder,Met. Trans. 3 (1972) 453.
C. Lund andJ. F. Radavich, Proceedings of the 4th International Symposium on Superalloys (American Society for Metals, Metals Park, Ohio, 1980) p. 85.
G. R. Leverant andM. Gell,Trans. Met. Soc. AIME 245 (1969) 1167.
B. J. Piearcey andR. W. Smashey,Trans. AIME 239 (1976) 451.
W. J. Boesh andH. B. Canada,J. Met. 20 (1968) 46.
H. E. Collins andR. J. Quigg,Trans. ASM 61 (1968) 139.
H. E. Collins,ibid. 62 (1969) 82.
M. Raghavant, R. P. Mueller, C. K. Klein andG. A. Vaughan,Scripta Metall. 17 (1983) 1189.
R. F. Decker, Proceedings of Steel Strengthening Mechanism Symposium, Zurich, Switzerland, 5–6 May (Climax Molybdenum Co., 1969) pp. 1–24.
N. Yukawa, Y. Murata andT. Noda, Proceedings of the 5th International Symposium on Superalloys (Metallurgical Society of AIME, 1984) p. 83.
T. B. Reed andE. R. Pollard,J. Crystal Growth 2 (1968) 243.
P. Viatour, D. Coutsouradis, L. Habraken andJ. M. Drapier, in “High Temperature Alloys for Gas Turbine”, edited by D. Coutsouradis, P. Felix, H. Fishmeister, L. Habraken, Y. Lindblom and M. O. Speidel (Applied Science, London, 1978) p. 875.
Y. Murata andN. Yukawa,Scripta Metall. 20 (5) (1986) in press.
S. C. Fegan, T. Z. Kattamis andJ. E. Morral,J. Mater. Sci. 10 (1975) 1266.
A. K. Bhambri, T. Z. Kattamis andJ. E. Morral,Met. Trans. 6B (1975) 523.
W. V. Youdelis andO. Kwon,Met. Sci. 17 (1983) 385.
S. T. Wlodek,Trans. ASM 57 (1964) 110.
E. T. Teatum, K. A. Gshneider Jr andJ. T. Waber, LA-2345, US Department of Commerce, Washington, DC (1968) p. 11.
R. Hultgren, P. D. Desai, D. T. Hawkins, M. Gleiser andK. K. Kelley, “Selected Values of the Thermodynamic Properties of Binary Alloys” (American Society for Metals, Metals Park, Ohio, 1973).
L. C. Browning andP. H. Emmett,J. Amer. Chem. Soc. 74 (1952) 4773.
C. P. Kempter,ibid. 78 (1956) 6209.
E. K. Storms, “The Refractory Carbides” (Academic Press, New York, 1967) p. 6.
M. Morinaga, N. Yukawa andH. Adachi,J. Phys. Soc. Jpn. 53 (1984) 643.
M. Hansen, “Constitution of Binary Alloy”, 2nd Edn (McGraw-Hill, New York, 1958) pp. 1019, 1222.
M. Hansen, E. L. Kamen, H. D. Kessher andD. J. McPherson,AIME 191 (1951) 881.
E. Rudy, Technical Report AFML-TR-69-117, Part I (Air Force Materials Laboratory, Wright-Patterson Air Force Base, Ohio, 1970).
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Murata, Y., Suga, K. & Yukawa, N. Effect of transition elements on the properties of MC carbides in IN-100 nickel-based superalloy. J Mater Sci 21, 3653–3660 (1986). https://doi.org/10.1007/BF00553814
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DOI: https://doi.org/10.1007/BF00553814