Abstract
For industrial and military applications, there is an increasing need for structural materials at elevated temperature beyond nickel-base superalloys. The Nb-Ti solid solution alloy possesses relatively high fracture toughness and good ductility. Some elements such as aluminum are added for better high temperature strength. After annealing, the strengthening phase precipitated in the grain boundary preferentially, and then grew into the grain. In order to control the size of the strengthening phase, the equations of dynamics of recrystallization and grain growth were obtained. After cold deformation, the uniform and tiny grain after annealing at 900–1020 °C can be obtained, the relation of volume fraction and annealing time can be described with Avrami equation. The recrystallization activation energy decreases as the increase of cold deformation, at the range of 249.2~208.9 kJ/mol. The influence of temperature and time on the grain growth of the alloy was also studied. Keywords: Nb-Ti-Al, dynamics of recrystallization, recrystallization activation energy, grain growth
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Dah-Liang Guan, Charlie R. Brooks, and Peter K. Liaw, “Microstructure and mechanical properties of as-cast and aged Nb-15 at.% Al-10 at.% Ti, -25 at.% Ti and-40 at.% Ti alloys,” Intermetallics, 10 (2002), 441–458.
Huisheng Jiao et al., “The microstructural evolution of NbAlV ternary alloys,” Intermetallics, 13 (2005), 1157–1165.
Y. Tan et al., “Effect of alloy composition on microstructure and high temperature properties of Nb-Zr-C ternary alloys,” Materials Science and Engineering A, 341 (2003), 282–288.
Rengen Ding, Ian P. Jones, and Huisheng Jiao, “Effect of carbon on the microstructures and mechanical properties of as cast Nb-base alloy,” Materials Science and Engineering A, 485 (2008), 92–98.
Huisheng Jiao, Ian P. Jones, and Mark Aindow, “Microstructures and mechanical properties of Nb-Ti-C alloys,” Materials Science and Engineering A, 485 (2008), 359–366.
Rengen Ding, Huisheng Jiao, and Ian P. Jones, “Effect of Mo on mechanical properties and microstructure of Nb-Ti-C alloys,” Materials Science and Engineering A, 483–484 (2008), 199–202.
T. Tabaru and S. Hanada, “High temperature strength of Nb3Al-base alloys,” Intermetallics, 6 (1998), 735–739.
Rengen Ding, Ian P. Jones, and Huisheng Jiao, “Effect of Mo and Hf on the mechanical properties and microstructure of Nb-Ti-C alloys,” Materials Science and Engineering A, 458 (2007), 126–135.
Won-Yong Kim, Hisao Tanaka, and Shuji Hanada, “;Microstructure and high temperature strength at 1773 K of Nbss/Nb5Si3 composites alloyed with molybdenum,” Intermetallics, 10 (2002), 625–634.
V.K. Sikka and E.A. Loria, “Characteristics of a multicomponent Nb-Ti-Al alloy via industrial-scale practice,” Materials Science and Engineering A, 239–240 (1997), 745–751.
S.M. Allameh et al., “Creep behavior in an extruded ß solid solution Nb-Ti base alloy,” Materials Science and Engineering A, 329–331(2002), 856–862.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 TMS (The Minerals, Metals & Materials Society)
About this paper
Cite this paper
Xiao, L., Yu, C. (2013). Dynamics of Recrystallization Behavior and Grain Growth Behavior of Nb-Ti-Al Superalloy. In: Marquis, F. (eds) Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48764-9_41
Download citation
DOI: https://doi.org/10.1007/978-3-319-48764-9_41
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48586-7
Online ISBN: 978-3-319-48764-9
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)