Abstract
This paper considers the deformation behavior during hot forging in as-cast and forged specimens of Ti-8Ta-3Nb. The experimental specimens are as-cast and forged specimens of Ti-8Ta-3Nb. The deformation behavior of Ti-8Ta-3Nb alloy has been characterized on the basis of its flow stress variation obtained by true strain rate compression testing in the temperature range 650-900°C and strain rate range 0.001–10s−1 P. The present study aims at assessing the hot workability of as-cast and forged Ti-8Ta-3Nb using the approach of processing maps and comparing specimens of Ti-8Ta-3Nb. The maps are an explicit representation of the various processes that occur in the different temperature and strain rate conditions. The construction of the maps is based on the experimentally determined changes of strain rate sensitivity coefficient. Processing maps were obtained at strains of 0.2, 0.3, 0.4 and 0.5 in both as-cast and forged specimens.
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References
R. S. Sundar and D. H. Sastry, Y. V. R. K. Prasad, Hot workability of as-cast Re3Al-2.5%Cr intermetallic alloy, Materials Science and Engineering A347 (2003) 86–92.
Y. V. R. K. Prasad and T. Seshacharyulu, Modeling of hot deformation for microstructural control, Int. Mater. Rev. 43 (1998) 243.
H. L. Gegel, J. C. Malas, S. M. Doraivelu and V. A. Schende, Metals Handbook, ninth ed., ASM, Metals Park, OH, (1987) 417.
Y. V. R. K. Prasad, S. Sasidhara (Eds.), Hot Working Guide: A Compendium of Processing Maps, ASM International, Materials Park, OH, (1997).
Y. V. R. K. Prasad, Recent advances in the science of mechanical processing, Indian J. Technol. 28 (1990) 435.
Y. V. R. K. Prasad, T. Seshacharyulu, Processing maps for hot working of titanium alloys, Materials Science and Engineering A243 (1998) 82–88.
H. Ziegler, in: I. N. Sneddon, R. Hill (Eds.), Progress in Solid Mechanics, vol. 4, North Holland, Amsterdam, (1963) 93–193.
A. K. S. Kalyand Kumar, Criteria for predicting metallurgical instabilities in processing, MSc (Eng) Thesis, Indian Institute of Science, Bangalore, India, (1987).
Y. V. R. K. Prasad, Ind. J. Technol. 28 (1990) 435.
Kyung Won Lee, Jae Sam Ban, Yeong Seon Yu and Kyu Zong Cho, A Study on the Mechanical Properties of Ti-8Ta-3Nb Alloy for Biomaterials, KSME International Journal, Vol. 18, No. 12 (2004) 2204–2208.
N. K. Park, J. T. Yeom and Y. S. Na, Characterization of deformation stability in hot forging of conventional Ti-6Al-4V using processing maps, Journal of Materials Processing Technology 130–131 (2002) 540–545.
Y. V. R. K. Prasad and K. P. Rao, Processing maps and rate controlling mechanisms of hot deformation of electrolytic tough pitch copper in the temperature range 300-950°C, Materials Science and Engineering A, Vol. 391 (2005) 141–150.
Y. V. R. K. Prasad, S. Sasidhara and V. K. Sikka, Characterization of mechanisms of hot deformation of as-cast nickel aluminide alloy, Intermetallics 8 (2000) 987–995.
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Lee, K.W., Ban, J.S., Lee, M.G. et al. Processing map for the hot working of Ti-8Ta-3Nb. J Mech Sci Technol 22, 931–936 (2008). https://doi.org/10.1007/s12206-008-0106-5
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DOI: https://doi.org/10.1007/s12206-008-0106-5