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Oxidation Processes and Phase Changes in Metastable Al-Ti Mechanical Alloys

Published online by Cambridge University Press:  01 February 2011

Xiaoying Zhu
Affiliation:
New Jersey Institute of Technology, Newark, NJ 07102
Mirko Schoenitz
Affiliation:
New Jersey Institute of Technology, Newark, NJ 07102
Edward L. Dreizin
Affiliation:
New Jersey Institute of Technology, Newark, NJ 07102
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Abstract

Oxidation of Al-Ti mechanical alloys with Ti concentrations from 5 to 25 at% was studied and compared to the oxidation of Al powders using thermal analysis in the temperature range of 300–1500 °C in oxygen. Differential scanning calorimetry (DSC) and differential thermal analysis (DTA) with simultaneous thermo-gravimetric analysis (TGA) were used to monitor phase changes and oxidation reactions. Intermediate reaction products were recovered at different temperatures and analyzed using x-ray diffraction (XRD) and scanning electron microscopy (SEM). Oxidation of all samples occurred stepwise. The temperature of the first oxidation step for Al-Ti mechanical alloys correlates with the exothermic formation of the Al3Ti intermetallic at T>700 °C and has a higher rate and greater degree of oxidation than the first oxidation step observed for pure aluminum. The second and third oxidation steps in mechanical alloys and aluminum occur at higher temperatures and both appear to be controlled by changes in the permeability of the Al2O3 films. The effect of the Al2O3 film becomes less noticeable at increased Ti concentrations.

Type
Research Article
Copyright
Copyright © Materials Research Society 2004

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References

1. Chan, M.L., Reed, R., and Ciaramitaro, D.A., in Progress in Astronautics and Aeronautics, v.185: 185206 (2000)Google Scholar
2. Dreizin, E.L., Progress in Energy and Combustion Science, 26 (1): 57–78 (2000)CrossRefGoogle Scholar
3. Shoshin, Y.L., Mudryy, R., S., , and Dreizin, E.L., Combust. Flame 128: 259269 (2002)CrossRefGoogle Scholar
4. Dreizin, E.L., and Shoshin, Y.L. AIAA paper AIAA-2003–1019, presented at the 41st Aerospace Sciences Meeting and Exhibit, Reno, NV (2003)Google Scholar
5. Schoenitz, M., Dreizin, E.L., and Shtessel, E., J. of Prop. and Power 19(3): 405412 (2003)CrossRefGoogle Scholar
6. Schoenitz, M., Zhu, X., and Dreizin, E., Proceedings of the 10th ISMANAM symposium, Aug. 24–28, Foz do Iguacu, Brazil (in press)Google Scholar
7. Massalski, TB, Okamoto, H, Subramanian, PR, Kacprzak, L., Editors. Binary Alloy Phase Diagrams. Materials Park, OH, ASM, 1990.Google Scholar
8. Zhang, F., Lu, L., and Lai, M.O., J. of Alloys and Compounds 297: 211218 (2000)CrossRefGoogle Scholar
9. Jiang, Q., Liang, L.H., and Li, J.C., Vacuum 72:249255 (2004)CrossRefGoogle Scholar
10. Jeurgens, L.P., Sloof, W.G., Tichelaar, F.D., and Mittemeijer, E.J., J. of Applied Physics. 92(3): 16491656 (2002)CrossRefGoogle Scholar
11. Shevchenko, V.G., Kononenko, V.I., Chupova, I.A., Latosh, I.N., and Lukin, N.V., Combustion, Explosion, and Shock Waves 37(4): 413417 (2001)CrossRefGoogle Scholar
12. Jeurgens, L.P., Sloof, W.G., Tichelaar, F.D., and Mittemeijer, E.J., Physical Review B. 62(7): 47074719 (2000)CrossRefGoogle Scholar

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