Anisotropic pitting of single-phase β-Zr alloy and isotropic pitting of α + β double-phase Zr alloy
| Autor: | Bing Zhang, Xinyu Zhang, C.Q. Xia, Mingzhen Ma, Riping Liu, Bo Pan, Z.H. Feng, Shuguang Liu, Zhang Xing |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science General Chemical Engineering Isotropy Metallurgy Kinetics Alloy 02 engineering and technology General Chemistry engineering.material 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Corrosion Crystallography 0103 physical sciences engineering Pitting corrosion General Materials Science 0210 nano-technology Anisotropy Dissolution |
| Zdroj: | Corrosion Science. 127:39-44 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2017.08.006 |
| Popis: | Pitting corrosion behaviour of Zr-40Ti-5Al–4 V alloys with different phase composition was investigated. Pitting of the single-phase β-Zr alloy is crystallographic and the corrosion pits exhibit different orientation, which is mainly attributed to the favored dissolution kinetics of the {001} plane in body-centered cubic β grains. In contrast, isotropic and circular shaped pitting, due to the evenly distributed α and β phases, was observed in Zr alloy containing α + β double-phase. In addition, weight loss and electrochemical experiments reveal that the double-phase alloy is more sensitive to pitting than the single-phase alloy. |
| Databáze: | OpenAIRE |
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