Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys
It is meaningful to study the effect of long-period stacking ordered(LPSO)phases content on the corrosion behavior of Mg-Gd-Y-Zn-Zr alloys for designing novel high-strong anti-corrosive Mg alloys.In this work, the electrochemical and corrosion behaviors of Mg-Gd-Y-Zn-Zr alloy in 5% NaCl aqueous solu...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Materials Protection
2021-01-01
|
| Series: | Cailiao Baohu |
| Subjects: | |
| Online Access: | http://www.mat-pro.com/fileup/1001-1560/PDF/202100105.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850117309450944512 |
|---|---|
| author | XIA Xiang-sheng, ZHANG Kui, MA Ming-long, LIU Lei, MA Yanlong |
| author_facet | XIA Xiang-sheng, ZHANG Kui, MA Ming-long, LIU Lei, MA Yanlong |
| author_sort | XIA Xiang-sheng, ZHANG Kui, MA Ming-long, LIU Lei, MA Yanlong |
| collection | DOAJ |
| description | It is meaningful to study the effect of long-period stacking ordered(LPSO)phases content on the corrosion behavior of Mg-Gd-Y-Zn-Zr alloys for designing novel high-strong anti-corrosive Mg alloys.In this work, the electrochemical and corrosion behaviors of Mg-Gd-Y-Zn-Zr alloy in 5% NaCl aqueous solution were analyzed by metallographic observation, SEM, EDS, electrochemical test and immersion experiment, further confirming the effect of LPSO content on the corrosion resistance.Results showed that the Zn element played a dominant role in the formation and distribution of the LPSO phase in the Mg-Gd-Y-Zn-Zr alloys, there was no LPSO phase formed in the alloy when no Zn element was added.The volume fraction of the LPSO phase increased and the morphology changed from lamellar to bulk with the increase of Zn concentration.Moreover, during the corrosion process, an uniform and continuous corrosion product layer was formed on the surface of the alloy substrate.when the addition of Zn increased, the thickness of the corrosion product layer decreased, and the corrosion morphology of the alloys changed from general corrosion to local corrosion.Besides, the LPSO phase acted as the cathode of corrosion micro-cell during local corrosion process, accelerating the corrosion and dissolution of the alloy substrate. |
| format | Article |
| id | doaj-art-23008df2bb25455d9e716326f5649a3d |
| institution | OA Journals |
| issn | 1001-1560 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Department of Materials Protection |
| record_format | Article |
| series | Cailiao Baohu |
| spelling | doaj-art-23008df2bb25455d9e716326f5649a3d2025-08-20T02:36:07ZzhoEditorial Department of Materials ProtectionCailiao Baohu1001-15602021-01-01541283510.16577/j.cnki.42-1215/tb.2021.01.005Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr AlloysXIA Xiang-sheng, ZHANG Kui, MA Ming-long, LIU Lei, MA Yanlong0(1.State Key Laboratory of Nonferrous Metals and Processes, GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China；2.Research Institute of Engineering Technology Co., Ltd., Beijing 101407, China; 3.Beijing General Research Institute of Nonferrous Metals,Beijing 101407, China; 4.Southwest Technology and Engineering Research Institute, Chongqing 400039, China；5.School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China)It is meaningful to study the effect of long-period stacking ordered(LPSO)phases content on the corrosion behavior of Mg-Gd-Y-Zn-Zr alloys for designing novel high-strong anti-corrosive Mg alloys.In this work, the electrochemical and corrosion behaviors of Mg-Gd-Y-Zn-Zr alloy in 5% NaCl aqueous solution were analyzed by metallographic observation, SEM, EDS, electrochemical test and immersion experiment, further confirming the effect of LPSO content on the corrosion resistance.Results showed that the Zn element played a dominant role in the formation and distribution of the LPSO phase in the Mg-Gd-Y-Zn-Zr alloys, there was no LPSO phase formed in the alloy when no Zn element was added.The volume fraction of the LPSO phase increased and the morphology changed from lamellar to bulk with the increase of Zn concentration.Moreover, during the corrosion process, an uniform and continuous corrosion product layer was formed on the surface of the alloy substrate.when the addition of Zn increased, the thickness of the corrosion product layer decreased, and the corrosion morphology of the alloys changed from general corrosion to local corrosion.Besides, the LPSO phase acted as the cathode of corrosion micro-cell during local corrosion process, accelerating the corrosion and dissolution of the alloy substrate.http://www.mat-pro.com/fileup/1001-1560/PDF/202100105.pdfmg-gd-y-zn-zr alloy; lpso phase; corrosion behavior; electrochemical behavior; corrosion resistance |
| spellingShingle | XIA Xiang-sheng, ZHANG Kui, MA Ming-long, LIU Lei, MA Yanlong Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys Cailiao Baohu mg-gd-y-zn-zr alloy; lpso phase; corrosion behavior; electrochemical behavior; corrosion resistance |
| title | Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys |
| title_full | Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys |
| title_fullStr | Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys |
| title_full_unstemmed | Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys |
| title_short | Effect of Long-Period Stacking Ordered(LPSO)Phases on the Corrosion Behavior of Mg-Gd-Y-Zn-Zr Alloys |
| title_sort | effect of long period stacking ordered lpso phases on the corrosion behavior of mg gd y zn zr alloys |
| topic | mg-gd-y-zn-zr alloy; lpso phase; corrosion behavior; electrochemical behavior; corrosion resistance |
| url | http://www.mat-pro.com/fileup/1001-1560/PDF/202100105.pdf |
| work_keys_str_mv | AT xiaxiangshengzhangkuimaminglongliuleimayanlong effectoflongperiodstackingorderedlpsophasesonthecorrosionbehaviorofmggdyznzralloys |