Research ArticleOpen AccessGoogle Scholar indexed
The Influence of Different Contents of Bi Addition on the Corrosion Behavior of Various Zirconium-Based Alloys
Laboratory for Microstructures, Shanghai University, Shanghai, China
Institute of Materials, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
Laboratory for Microstructures, Shanghai University, Shanghai, China
- 1 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 2 Institute of Materials, Shanghai University, Shanghai, China
- 3 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 4 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 5 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 6 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 7 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 8 Laboratory for Microstructures, Shanghai University, Shanghai, China
- 9 Laboratory for Microstructures, Shanghai University, Shanghai, China
Journal of Environmental Protection·Volume 07 (2016)·Pages 495–501·Published 8 March 2016·DOI10.4236/jep.2016.74044
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Abstract
Zr-4(Zr-1.5Sn-0.2Fe-0.1Cr,wt%), S5(Zr-0.8Sn-0.34Nb-0.39Fe-0.1Cr), T5(Zr-0.7Sn-1.07Nb-0.32Fe-0.08Cr) and Zr-1Nb were adopted to prepare Bi-containing zirconium alloys for systematically investigating the effect of Bi addition on the corrosion resistance of zirconium alloys. The specimens were corroded in superheated steam at 400 ℃ /10.3 MPa, and in lithiated water with 0.01 M LiOH or in deionized water at 360 ℃ /18.6 MPa by autoclave testing. Results show that the corrosion resistance increases with the increasing of Bi content dissolved in α-Zr. But the presence of Bi-con- taining second phase particles (SPPs) is unfavorable for the enhancement of corrosion resistance. This indicates that the Bi dissolved in α-Zr matrix plays an important role in improving the corrosion resistance, while the precipitation of the Bi-containing SPPs does harm to the corrosion resistance.
KeywordsBiZirconium AlloyCorrosion ResistanceSPPs
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