| Corrosion behavior of an Al-6Mg-Sc-Zr alloy | |
| Alternative Title | Corrosion behavior of an Al-6Mg-Sc-Zr alloy |
| Xu GX1; Tao BW1; Liu JH1; Li SM1 | |
| 2005 | |
| Source Publication | RARE METALS
 |
| ISSN | 1001-0521 |
| Volume | 24Issue:3Pages:246-251 |
| Abstract | The corrosion behavior of an Al-6Mg-Sc-Zr alloy was studied and compared with that of an Al-6Mg-Zr alloy. The addition of scandium into the Al-6Mg-Zr alloy reduced the susceptibility to exfoliation corrosion. By using the constant load tensile method in a 3.5 wt.% NaCl solution, the resistance to SCC of the Al-6Mg-Se-Zr alloy was higher than that of the Al-6Mg-Zr alloy. When the specimens were not applied with an anodic current, the Al-6Mg-Sc-Zr alloy was resistance to SCC and no brittle cracking was found on the fracture surface. When an anodic current was applied, the Al-6Mg-Sc-Zr alloy specimens failed as a result of accelerated corrosion rather than SCC. It was believed that the addition of scandium resulted in (Al3SC, Zr) particles that greatly refined grains and promoted the formation of homogeneous discontinuous distribution of beta-phase in the alloy base, which much contributed to good corrosion resistance of the Al-6Mg-Sc-Zr alloy. |
| Other Abstract | The corrosion behavior of an Al-6Mg-Sc-Zr alloy was studied and compared with that of an Al-6Mg-Zr alloy.The addition of scandium into the Al-6Mg-Zr alloy reduced the susceptibility to exfoliation corrosion. By using the constant load tensile method in a 3.5 wt.% NaCl solution, the resistance to SCC of the Al-6Mg-Sc-Zr alloy was higher than that of the Al-6Mg-Zr alloy. When the specimens were not applied with an anodic current, the Al-6Mg-Sc-Zr alloy was resistance to SCC and no brittle cracking was found on the fracture surface. When an anodic current was applied, the Al-6Mg-Sc-Zr alloy specimens failed as a result of accelerated corrosion rather than SCC. It was believed that the addition of scandium resulted in (Al3Sc, Zr) particles that greatly refmed grains and promoted the formation of homogeneous discontinuous distribution of β-phase in the alloy base, which much contributed to good corrosion resistance of the Al-6Mg-Sc-Zr alloy. |
| Keyword | SC RECRYSTALLIZATION corrosion Al-Mg-Sc-Zr alloy SCC test exfoliation corrosion scandium |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:2021057 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/143591 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.Beijing University Aeronaut & Astronaut 2.中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Xu GX,Tao BW,Liu JH,et al. Corrosion behavior of an Al-6Mg-Sc-Zr alloy[J]. RARE METALS,2005,24(3):246-251. |
| APA | Xu GX,Tao BW,Liu JH,&Li SM.(2005).Corrosion behavior of an Al-6Mg-Sc-Zr alloy.RARE METALS,24(3),246-251. |
| MLA | Xu GX,et al."Corrosion behavior of an Al-6Mg-Sc-Zr alloy".RARE METALS 24.3(2005):246-251. |
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