Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy
This study investigated the corrosion behavior in the core and at the edge of the cross-section of an extruded GW103K (Mg–10Gd–3Y–0.4Zr) alloy. Equivalent stress and strain were modeled using finite element simulations. The stress and strain in the core were lower than those at the edge. The microst...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0125304 |
| _version_ | 1797771885778305024 |
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| author | Xiaolian Liu Ruiling Jia Jianna Li Wenhua Cheng Huixia Zhang |
| author_facet | Xiaolian Liu Ruiling Jia Jianna Li Wenhua Cheng Huixia Zhang |
| author_sort | Xiaolian Liu |
| collection | DOAJ |
| description | This study investigated the corrosion behavior in the core and at the edge of the cross-section of an extruded GW103K (Mg–10Gd–3Y–0.4Zr) alloy. Equivalent stress and strain were modeled using finite element simulations. The stress and strain in the core were lower than those at the edge. The microstructure, corrosion morphology, and grain orientation of the alloy were examined using optical microscopy, scanning electron microscopy, and electron backscatter diffraction, respectively. The results showed that most grains in the core exhibited a basal plane orientation and lower surface energy, whereas those at the edge exhibited cylindrical orientations. Hydrogen evolution experiments and electrochemical tests showed that the corrosion resistance in the core was higher than that at the edge. Scanning Kelvin probe force microscopy measurements of the surface potential distribution in the cross-section revealed a large potential difference between the second-phase particles at the edge and the matrix, with obvious galvanic corrosion. The alloy core exhibited low stress and a higher content of grains with basal plane orientation, along with a small potential difference between the second-phase particles and the matrix. Thus, the corrosion resistance in the core was higher than that at the edge. |
| first_indexed | 2024-03-12T21:44:04Z |
| format | Article |
| id | doaj.art-26023a4810e84f17aad6a67c9d8943ee |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-03-12T21:44:04Z |
| publishDate | 2023-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-26023a4810e84f17aad6a67c9d8943ee2023-07-26T14:03:58ZengAIP Publishing LLCAIP Advances2158-32262023-03-01133035233035233-910.1063/5.0125304Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloyXiaolian Liu0Ruiling Jia1Jianna Li2Wenhua Cheng3Huixia Zhang4School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, People’s Republic of ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, People’s Republic of ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, People’s Republic of ChinaState Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Qingdao 266101, People’s Republic of ChinaState Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Qingdao 266101, People’s Republic of ChinaThis study investigated the corrosion behavior in the core and at the edge of the cross-section of an extruded GW103K (Mg–10Gd–3Y–0.4Zr) alloy. Equivalent stress and strain were modeled using finite element simulations. The stress and strain in the core were lower than those at the edge. The microstructure, corrosion morphology, and grain orientation of the alloy were examined using optical microscopy, scanning electron microscopy, and electron backscatter diffraction, respectively. The results showed that most grains in the core exhibited a basal plane orientation and lower surface energy, whereas those at the edge exhibited cylindrical orientations. Hydrogen evolution experiments and electrochemical tests showed that the corrosion resistance in the core was higher than that at the edge. Scanning Kelvin probe force microscopy measurements of the surface potential distribution in the cross-section revealed a large potential difference between the second-phase particles at the edge and the matrix, with obvious galvanic corrosion. The alloy core exhibited low stress and a higher content of grains with basal plane orientation, along with a small potential difference between the second-phase particles and the matrix. Thus, the corrosion resistance in the core was higher than that at the edge.http://dx.doi.org/10.1063/5.0125304 |
| spellingShingle | Xiaolian Liu Ruiling Jia Jianna Li Wenhua Cheng Huixia Zhang Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy AIP Advances |
| title | Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy |
| title_full | Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy |
| title_fullStr | Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy |
| title_full_unstemmed | Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy |
| title_short | Study on localized corrosion behavior of hot extrusion deformed GW103K magnesium alloy |
| title_sort | study on localized corrosion behavior of hot extrusion deformed gw103k magnesium alloy |
| url | http://dx.doi.org/10.1063/5.0125304 |
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