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Radiation Effects on the Plasticity and Microstructure of Ti-Al-V Alloys Containing β Phase

Published online by Cambridge University Press:  21 March 2011

Tomotsugu Sawai ,
Masayuki Tabuchi ,
Eiichi Wakai  and
Akimichi Hishinuma
Tomotsugu Sawai
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-1195, Japan
Masayuki Tabuchi
Affiliation:
Hakodate National College of Technology, Hakodate-shi, Hokkaido, 042-8501, Japan
Eiichi Wakai
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-1195, Japan
Akimichi Hishinuma
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken, 319-1195, Japan
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Abstract

Tensile properties of Ti-35Al-15V and Ti-30Al-10V alloys were examined. These alloys contain β phase with ordered bcc structure. The total elongation of Ti-35Al-15V alloy abruptly changes from 10% to 60% around 620 ºC. Many transformation bands were observed in β grains that were highly deformed above this temperature. The hexagonal α2-phase grains in bands and the β–phase grains in bands and matrix were in Burgers type of orientation relationship. The ductility of Ti-30Al-10V alloy was highly affected by neutron irradiation. The specimens irradiated and tested at 400 °C showed almost no ductility. The total elongation of specimens irradiated and tested at 600 °C was about 10 %, while that of unirradiated ones was larger than 60 %. Specimens irradiated at 400 °C were also tested at 600 °C and the elongation was only 6 %, showing little recovery in ductility. This embrittlement suggests phase decomposition during irradiation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 650: Symposium R – Microstructural Processes in Irradiated Materials-2000 , 2000 , R3.9
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Nobuki, M., Vanderschueren, D. and Nakamura, M., Acta metall. mater. 42, 2623(1994).Google Scholar
2. Hishinuma, A., Tabuchi, M., Sawai, T. and Nakata, K., phys. stat. sol (a). 167, 521(1998).Google Scholar
3. Hishinuma, A., Tabuchi, M. and Sawai, T., Intermetallics 7, 875(1998).Google Scholar
4. Tokizane, M. and Kumagata, R., Int. Conf. on PM Aerospace Materials 1991, Lousanne, Switzerland, paper 26.Google Scholar
5. Petzow, G., Effenberg, G., Ternary alloys. A comprehensive comnpedium of evaluated constitutional data and phase diagrams, vol. 8, Al-Ni-Tb to Al-Zn-Zr, (VCH Verlagsgesellschaft, Weinheim, 1993) pp.426–445.Google Scholar
6. Shao, G., Miodownik, A. P. and Tsakiropoulos, P., Phil. Mag. 71, 1389 (1995).Google Scholar