Forming of Zr/sub 3/Al-base alloys
Journal Article
·
· Metall. Trans., B; (United States)
Tubes have been formed from the intermediate phase Zr/sub 3/Al (L1/sub 2/ type) which is of potential use as a structural element in thermal nuclear power reactors. The procedure is to extrude Zr/Zr/sub 2/Al two-phase ingots at temperatures above 1270 K in the ..beta.. Zr + Zr/sub 2/Al two-phase field and then transform the extruded product at lower temperatures to Zr/sub 3/Al via the peritectoid transformation Zr + Zr/sub 2/Al ..-->.. Zr/sub 3/Al. For small tubes (approximately less than 3.2 cm OD) the extrusion constants at 1375 and 1425 K, respectively, are approx. =400 and approx. =300 MN/m/sup 2/ for the conditions chosen. The experimental extrusions indicate no fundamental barriers to forming pressure tubes from Zr-Al alloys containing 7.6 to 9.0 wt pct Al.
- Research Organization:
- Chalk River Nuclear Labs., Ontario
- OSTI ID:
- 7326663
- Journal Information:
- Metall. Trans., B; (United States), Journal Name: Metall. Trans., B; (United States) Vol. 7:3; ISSN MTTBC
- Country of Publication:
- United States
- Language:
- English
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