Published August 1980
| Version v1
Journal article
Transformation-induced reduction in the oxidation rate of ordered Zr3Al
Description
Oxidation experiments in air from 775 to 11450K have established that at temperatures of 9750K and above, the peritectoid Ll2 phase, Zr3Al, under the influence of oxygen and nitrogen, undergoes the reverse peritectoid transformation Zr3Al → Zr2Al + Zr. This decomposition results in the formation of a lamellar Zr2Al/Zr product beneath the exposed surface. Correspondingly, the shortterm oxidation rate decreases and the oxide film becomes more adherent. The change in character is caused, at least in part, by the preferential oxidation of the αZr phase within the lamellar product, which leads to oxide platelets being held between the unoxidized Zr2Al lamellae
Additional details
Publishing Information
- Journal Title
- Metall. Trans., A
- Journal Volume
- 11
- Journal Issue
- 8
- Series
- Metall. Trans., A.
- Journal Page Range
- 1459-1464
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12577313
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- ALUMINIUM ALLOYS; OXIDATION; REACTOR MATERIALS; ZIRCALOY 2
- Descriptors DEC
- ALLOYS; CHEMICAL REACTIONS; CHROMIUM ADDITIONS; IRON ADDITIONS; TIN ALLOYS; TRANSITION ELEMENT ALLOYS; ZIRCALOY; ZIRCONIUM ALLOYS; ZIRCONIUM BASE ALLOYS