Production of hard Zr base alloys containing Ru and their mechanical properties (in Japanese)
Zirconium and zirconium-base alloys containing 0.1 to 2% ruthenium with strong age hardness are produced. The process for manufacturing such alloys comprises the steps of treating the alloys within the range of beta phase to form a solid solution, quenching the alloys, and thereafter aging the alloys at a temperature of 300 to 500 deg C. The alloys improve their hardness without damaging workability, small cross section for neutrons, and corrosion resistance equal to Zircaloy-2, and are suitable for compact construction. In an example, 3% of Zr--11% Ru mother alloy and 2.5% of Nb are added to Zr, melted in an arc furnace and then with electron beams, and thereafter hot-rolled at 850 deg C, then cooled to form a plate 0.8 mm thick of Zr-2.5%Nb-0.3%Ru with Vickers hardness 190. These alloys are annealed at 500, 450, and 400 deg C for 10,000 minutes. (JA)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-29-027284
- OSTI ID:
- 4336834
- Report Number(s):
- JP 7327173
- Country of Publication:
- Japan
- Language:
- Japanese
Similar Records
AGEING AND HOT HARDNESS CHARACTERISTICS OF CERTAIN THORIUM ALLOYS
PROPERTIES OF TITANIUM-VANADIUM-ZIRCONIUM ALLOYS