A METALLOGRAPHIC STUDY OF THE BEHAVIOUR OF HELIUM IN ALUMINUM
Technical Report
·
OSTI ID:4167208
Helium was introduced into several types of aluminum and aluminum-rich alloys by irradiation in an alphaparticle beam. The effect of helium (0.5 cm/sup 3/cm/sup 3/) on the structure of the metal was studied by metallographic techniques. It was shown that helium acts as a grain-growth inhibitor, collects vacancies at certain points of nucleation, and under sufficiently severe annealing conditions forms gross bubbles. The results can, in general, be explained by accepted ideas on the behavior of inert gases in metals and have shown the importance of second-phase particles in producing enhanced bubble formation. (auth)
- Research Organization:
- Atomic Energy of Canada Ltd., Chalk River, Ont.
- NSA Number:
- NSA-14-008741
- OSTI ID:
- 4167208
- Report Number(s):
- CRMet-863; AECL-918
- Country of Publication:
- Canada
- Language:
- English
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