| Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment | |
| Ding, Yanfang1,3; Jia, Ruiling1; Zhang, Wei2; Zhang, Huixia3; Hou, Jian3 | |
| Corresponding Author | Jia, Ruiling() |
| 2019 | |
| Source Publication | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
 |
| ISSN | 1533-4880 |
| Volume | 19Issue:1Pages:188-193 |
| Abstract | AZ91 alloy with 1.0 wt.% (La, Ce) mischmetal (MM) addition was solution treated at 593 K for 4 h, 653 K for 2 h and 693 K for 8 h (T4), which was subsequently aged at 493 K for 5 h, 8 h and 11 h, respectively. Solid solution and aging treatment mainly led to the change of number of beta-Mg17Al12 phases and the size of mischmetal (MM) intermetallics. The relative potential difference is an index for local corrosion of alloys because the corrosion is driven by micro-galvanic coupling of the microstructure. In the present work, the relative Volta potential difference between the dominated intermetallic phase and Mg-matrix phase in the AZ91 alloy with (La, Ce) MM addition after heat treatment was measured by scanning Kelvin probe force microscopy (SKPFM). Then correlative changes of relative Volta potentials of intermetallic phases with solid-solution-treatment and subsequently aging treatment (T6) were inferred. The relative Volta potential difference of mischmetal intermetallic phases increased with the solid solution treatment. With the increase of aging time, the relative Volta potential difference of mischmetal intermetallic phases decreased. The relative Volta potential difference of intermetallic phases containing rare earth was ranked as: T6-11 h < T6-8 h < T6-5 h < as-received < T4. |
| Keyword | Relative Volta Potential Difference Scanning Probe Microscopy Nanometer Phase Heat Treatment |
| Funding Organization | Natural Science Foundation of Inner Mongolia ; Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute |
| DOI | 10.1166/jnn.2019.16456 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Inner Mongolia[2016MS0538] ; Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute[KF160408] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000447641700025 |
| Publisher | AMER SCIENTIFIC PUBLISHERS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/129639 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Jia, Ruiling |
| Affiliation | 1.Inner Mongolia Univ Technol, Sch Mat Sci & Engn, Hohhot 010051, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China 3.LSMRI, State Key Lab Marine Corros & Protect, Qingdao 266101, Peoples R China |
| Recommended Citation GB/T 7714 | Ding, Yanfang,Jia, Ruiling,Zhang, Wei,et al. Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2019,19(1):188-193. |
| APA | Ding, Yanfang,Jia, Ruiling,Zhang, Wei,Zhang, Huixia,&Hou, Jian.(2019).Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,19(1),188-193. |
| MLA | Ding, Yanfang,et al."Relative Volta Potentials of Intermetallics in AZ91-RE Mg Alloy After Solution and Aging Treatment".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 19.1(2019):188-193. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment