The nature of the γ-phase in zirconium-hydrogen alloys
Journal Article
·
· Journal of the Less-Common Metals
Thc microstructure of ZrH1.27 which was slowly cooled after hydriding at 800 deg C and annealing at 500 deg C, consists of alpha -Zr and twinned of f.c. tetragonal gamma phase (ZrH) in a matrix of fcc delta phnse (ZrH1.60). Aging at room temperature resulted in increased gamma phase at the alpha -- delta interface, while the amount of gamma phase in the matrix remained constant. Thus, the gamma phase is a stable phase forraed by a peritectoid reaction between alpha and delta . At the other end of the Zr--H phase diagram, the embrittling, needle-shaped phase at low H is the gamma phase.
- Research Organization:
- Siemens AG, Munich
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-29-021333
- OSTI ID:
- 4325273
- Journal Information:
- Journal of the Less-Common Metals, Journal Name: Journal of the Less-Common Metals Journal Issue: 1 Vol. 35; ISSN 0022-5088
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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