Effect of the Sc/Zr ratio on the corrosion resistance of Al-Mg cast alloys
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866907782212485120 |
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| author | Kozlova, N. A. Chuvil'deev, V. N. Nokhrin, A. V. Shadrina, Y. S. Bobrov, A. A. Chegurov, M. K. |
| author_facet | Kozlova, N. A. Chuvil'deev, V. N. Nokhrin, A. V. Shadrina, Y. S. Bobrov, A. A. Chegurov, M. K. |
| contents | The results of investigations of the corrosion resistance of Al-Mg-Sc-Zr alloys with varying Mg content and different Sc/Zr ratios are presented. The objects of investigations were the Al-Mg-Sc-Zr alloys with total Sc + Zr content of 0.32 wt%. The concentration of Sc and Zr in the alloys varied with the increments of 0.02 wt%. The alloys were produced by induction casting. The effect of annealing temperature on the microhardness and electrical resistivity of the Al-Mg-Sc-Zr alloys was investigated. Corrosion tests were carried out in a medium simulating intergranular corrosion in aluminum alloys. Electrochemical studies and mass loss tests were performed. An increase in the Sc concentration and a decrease in the Zr one were shown to result in an increase in the corrosion rate. The primary Al3(ScxZr1-x) particles were found to have the main effect on the corrosion resistance of Al-Mg-Sc-Zr alloys. The dependence of the corrosion current on the annealing temperature of the Al-Mg-Sc-Zr alloy was found to have a non-monotonous character (with a maximum). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_17429 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Effect of the Sc/Zr ratio on the corrosion resistance of Al-Mg cast alloys Kozlova, N. A. Chuvil'deev, V. N. Nokhrin, A. V. Shadrina, Y. S. Bobrov, A. A. Chegurov, M. K. Materials Science The results of investigations of the corrosion resistance of Al-Mg-Sc-Zr alloys with varying Mg content and different Sc/Zr ratios are presented. The objects of investigations were the Al-Mg-Sc-Zr alloys with total Sc + Zr content of 0.32 wt%. The concentration of Sc and Zr in the alloys varied with the increments of 0.02 wt%. The alloys were produced by induction casting. The effect of annealing temperature on the microhardness and electrical resistivity of the Al-Mg-Sc-Zr alloys was investigated. Corrosion tests were carried out in a medium simulating intergranular corrosion in aluminum alloys. Electrochemical studies and mass loss tests were performed. An increase in the Sc concentration and a decrease in the Zr one were shown to result in an increase in the corrosion rate. The primary Al3(ScxZr1-x) particles were found to have the main effect on the corrosion resistance of Al-Mg-Sc-Zr alloys. The dependence of the corrosion current on the annealing temperature of the Al-Mg-Sc-Zr alloy was found to have a non-monotonous character (with a maximum). |
| title | Effect of the Sc/Zr ratio on the corrosion resistance of Al-Mg cast alloys |
| topic | Materials Science |
| url | https://arxiv.org/abs/2401.17429 |