Skip to main content Accessibility help
×
Home

Effect of Ternary Additions on the Microstructural Stability and Oxidation Characteristics of Ti-48 Al

  • S. A. Kekare (a1), D. K. Shelton (a1) and P. B. Aswath (a1)

Abstract

Oxidation behavior of binary Ti-48 Al and ternary alloys with 1.5 at.% Cr, 1.4 at.%Mn, 0.2 at.% W, 2.2 at% V, 20 vol.% TiNb particles were examined in an air atmosphere at 704°C, 815°C and 982°C. Results indicate that the addition of Cr is detrimental at all temperatures. The Cr and V containing alloys exhibited a linear oxidation behavior at 815°C while the Mn containing alloy showed a linear behavior at 982°C. At 982 °C the alloys with W and V exhibit the best oxidation behavior. The mechanism of oxidation has been explained with the help of a simple vacancy model for oxygen diffusion.

Copyright

References

Hide All
1 Wagner, K., Atom Movements, American Soc. for Materials, 153173, (1951).
2 Kofstad, P., Anderson, P.B. and Krudtaa., O.J., J. Less-Common Met., 3 (2), 8997, (1961).
3 Sankaran, S.N., Clark, R.L., Unnam, J., and Wiedemann., K.E. NASA Technical Paper 3012, (1990).
4 Umakoshi, Y., Yamagushi, M., Sakagami, T. and Yamani, T., J. Mater. Sci., 24, 1599, (1989).
5 Lee, E.U. and Waldman., J., Scripta Metall., 22, 1389, (1988).
6 Perkins, R.A., Chiang, K.T. and Meir, G.H., Scripta Metall., 21, 1505, (1987).
7 Hauffe, K., Oxidation of Metals., (Plenum Press 1965), pp. 217225.
8 Kofstad, P., Nonstoichiometry. Diffusion and Electrical Conductivity in Binary Metal Oxides, (John Wiley and Sons Inc. 1972.), pp. 1546.

Related content

Powered by UNSILO

Effect of Ternary Additions on the Microstructural Stability and Oxidation Characteristics of Ti-48 Al

  • S. A. Kekare (a1), D. K. Shelton (a1) and P. B. Aswath (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.