Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet
The microstructure and corrosion anisotropy of the Mg-5Li extruded sheet were investigated in this work. Three distinct samples cut from the normal plane (A), longitudinal plane (B), and cross-sectional plane (C) of the as-extruded sheet were prepared. The microstructure was analyzed using optical m...
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MDPI AG
2023-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/19/6435 |
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| author | Jiexi Liang Binbin Deng Chuanqiang Li Yong Dong Naiguang Wang Zhengrong Zhang Shidong Wang |
| author_facet | Jiexi Liang Binbin Deng Chuanqiang Li Yong Dong Naiguang Wang Zhengrong Zhang Shidong Wang |
| author_sort | Jiexi Liang |
| collection | DOAJ |
| description | The microstructure and corrosion anisotropy of the Mg-5Li extruded sheet were investigated in this work. Three distinct samples cut from the normal plane (A), longitudinal plane (B), and cross-sectional plane (C) of the as-extruded sheet were prepared. The microstructure was analyzed using optical microscopy (OM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The corrosion resistance and behaviors of the three samples in a 0.1 mol/L NaCl solution were evaluated by employing hydrogen evolution, mass loss testing, electrochemical assessments, and corrosion morphology analyses. The results revealed that sample A displayed a distinctive bimodal (0002) basal texture, along with clearly distinguishably larger grain sizes than the other samples. The effect of grain size and crystallographic orientation on the corrosion resistance was highlighted, indicating the pioneering corrosion resistance of sample A and the lowest corrosion resistance of sample C. Furthermore, all three samples exhibited the characteristic filiform corrosion during the initial stages of corrosion, progressing into the formation of corrosion pits, with sample C displaying pronounced susceptibility. |
| first_indexed | 2024-03-10T21:41:17Z |
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| id | doaj.art-fb8d9dccb4ea4890aa23c9db5cdd55ce |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T21:41:17Z |
| publishDate | 2023-09-01 |
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| spelling | doaj.art-fb8d9dccb4ea4890aa23c9db5cdd55ce2023-11-19T14:39:50ZengMDPI AGMaterials1996-19442023-09-011619643510.3390/ma16196435Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded SheetJiexi Liang0Binbin Deng1Chuanqiang Li2Yong Dong3Naiguang Wang4Zhengrong Zhang5Shidong Wang6School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaKey Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaThe microstructure and corrosion anisotropy of the Mg-5Li extruded sheet were investigated in this work. Three distinct samples cut from the normal plane (A), longitudinal plane (B), and cross-sectional plane (C) of the as-extruded sheet were prepared. The microstructure was analyzed using optical microscopy (OM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The corrosion resistance and behaviors of the three samples in a 0.1 mol/L NaCl solution were evaluated by employing hydrogen evolution, mass loss testing, electrochemical assessments, and corrosion morphology analyses. The results revealed that sample A displayed a distinctive bimodal (0002) basal texture, along with clearly distinguishably larger grain sizes than the other samples. The effect of grain size and crystallographic orientation on the corrosion resistance was highlighted, indicating the pioneering corrosion resistance of sample A and the lowest corrosion resistance of sample C. Furthermore, all three samples exhibited the characteristic filiform corrosion during the initial stages of corrosion, progressing into the formation of corrosion pits, with sample C displaying pronounced susceptibility.https://www.mdpi.com/1996-1944/16/19/6435magnesium alloycrystallographic orientationcorrosion anisotropycorrosion resistancelocalized corrosion |
| spellingShingle | Jiexi Liang Binbin Deng Chuanqiang Li Yong Dong Naiguang Wang Zhengrong Zhang Shidong Wang Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet Materials magnesium alloy crystallographic orientation corrosion anisotropy corrosion resistance localized corrosion |
| title | Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet |
| title_full | Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet |
| title_fullStr | Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet |
| title_full_unstemmed | Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet |
| title_short | Pioneering Enhanced Corrosion Resistance along the Normal Plane of an Ultra-Light Mg-Li Extruded Sheet |
| title_sort | pioneering enhanced corrosion resistance along the normal plane of an ultra light mg li extruded sheet |
| topic | magnesium alloy crystallographic orientation corrosion anisotropy corrosion resistance localized corrosion |
| url | https://www.mdpi.com/1996-1944/16/19/6435 |
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