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Publications (5/5 displayed)
- 2013New zinc–rare earth alloys: Influence of intermetallic compounds on the corrosion resistancecitations
- 2013New zinc-rare earth alloys: Influence of intermetallic compounds on the corrosion resistancecitations
- 2011Corrosion behaviour of zinc-cerium alloys: role of intermetallic phasescitations
- 2010Selective extraction and determination of Au(III) by first-derivative Spectrophotometrycitations
- 2005Nickel Ion-Selective PVC Membrane Electrode Based on new tert-octyl Calix[6]arene Derivativecitations
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article
New zinc–rare earth alloys: Influence of intermetallic compounds on the corrosion resistance
Abstract
New ZnRE 1–2 wt.% alloys (RE = Ce, La and Mischmetal) were synthesized. Microstructural analyses reveal that rare-earth metals are exclusively present in intermetallic phases contained within the zinc matrix: CeZn11 or LaZn13 in binary alloys; Ce1−xLaxZn11 and CeyLa1−yZn13 in Zn–Mischmetal alloys. This phase equilibrium is confirmed by a thermodynamic description of the Zn-rich corner of Zn–Ce–La system. Both intermetallic phases CeZn11 and LaZn13 induce a cathodic inhibition of the corrosion of the Zn–RE alloys in comparison with pure zinc. In the specific case of cerium addition, a significant anodic inhibition is also observed.