Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083
This paper investigates the effect of the microstructure on the corrosion behavior of cold sprayed (CS) AA5083 compared to its wrought counterpart. It has been shown that the microstructure of CS aluminum alloys, such as AA2024, AA6061, and AA7075, affects their corrosion behavior; however, investig...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Corrosion and Materials Degradation |
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| Online Access: | https://www.mdpi.com/2624-5558/5/1/2 |
| _version_ | 1797241616195387392 |
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| author | Munsu Kim Lorena Perez-Andrade Luke N. Brewer Gregory W. Kubacki |
| author_facet | Munsu Kim Lorena Perez-Andrade Luke N. Brewer Gregory W. Kubacki |
| author_sort | Munsu Kim |
| collection | DOAJ |
| description | This paper investigates the effect of the microstructure on the corrosion behavior of cold sprayed (CS) AA5083 compared to its wrought counterpart. It has been shown that the microstructure of CS aluminum alloys, such as AA2024, AA6061, and AA7075, affects their corrosion behavior; however, investigations of the corrosion behavior of CS AA5083 with a direct comparison to wrought AA5083 have been limited. The microstructure and corrosion behavior of CS AA5083 were examined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), electron backscattered diffraction (EBSD), electrochemical and immersion tests, and ASTM G67. The CS process resulted in microstructural changes, such as the size and spatial distribution of intermetallic particles, grain size, and misorientation. The refined grain size and intermetallic particles along prior particle boundaries stimulated the initiation and propagation of localized corrosion. Electrochemical tests presented enhanced anodic kinetics with high pitting susceptibility, giving rise to extensive localized corrosion in CS AA5083. The ASTM G67 test demonstrated significantly higher mass loss for CS AA5083 compared to its wrought counterpart due to preferential attack within prior particle boundary regions in the CS microstructure. Possible mechanisms of intergranular corrosion (IGC) propagation at prior particle boundary regions have been discussed. |
| first_indexed | 2024-04-24T18:26:09Z |
| format | Article |
| id | doaj.art-dd40b00d224e4a7290ac9271572649e3 |
| institution | Directory Open Access Journal |
| issn | 2624-5558 |
| language | English |
| last_indexed | 2024-04-24T18:26:09Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Corrosion and Materials Degradation |
| spelling | doaj.art-dd40b00d224e4a7290ac9271572649e32024-03-27T13:31:44ZengMDPI AGCorrosion and Materials Degradation2624-55582024-01-0151275110.3390/cmd5010002Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083Munsu Kim0Lorena Perez-Andrade1Luke N. Brewer2Gregory W. Kubacki3Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USADepartment of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USADepartment of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USADepartment of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USAThis paper investigates the effect of the microstructure on the corrosion behavior of cold sprayed (CS) AA5083 compared to its wrought counterpart. It has been shown that the microstructure of CS aluminum alloys, such as AA2024, AA6061, and AA7075, affects their corrosion behavior; however, investigations of the corrosion behavior of CS AA5083 with a direct comparison to wrought AA5083 have been limited. The microstructure and corrosion behavior of CS AA5083 were examined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), electron backscattered diffraction (EBSD), electrochemical and immersion tests, and ASTM G67. The CS process resulted in microstructural changes, such as the size and spatial distribution of intermetallic particles, grain size, and misorientation. The refined grain size and intermetallic particles along prior particle boundaries stimulated the initiation and propagation of localized corrosion. Electrochemical tests presented enhanced anodic kinetics with high pitting susceptibility, giving rise to extensive localized corrosion in CS AA5083. The ASTM G67 test demonstrated significantly higher mass loss for CS AA5083 compared to its wrought counterpart due to preferential attack within prior particle boundary regions in the CS microstructure. Possible mechanisms of intergranular corrosion (IGC) propagation at prior particle boundary regions have been discussed.https://www.mdpi.com/2624-5558/5/1/2Al-Mg alloysadditive manufacturingcold spray depositionlocalized corrosionsensitizationASTM G67 |
| spellingShingle | Munsu Kim Lorena Perez-Andrade Luke N. Brewer Gregory W. Kubacki Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083 Corrosion and Materials Degradation Al-Mg alloys additive manufacturing cold spray deposition localized corrosion sensitization ASTM G67 |
| title | Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083 |
| title_full | Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083 |
| title_fullStr | Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083 |
| title_full_unstemmed | Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083 |
| title_short | Effect of Microstructure on Corrosion Behavior of Cold Sprayed Aluminum Alloy 5083 |
| title_sort | effect of microstructure on corrosion behavior of cold sprayed aluminum alloy 5083 |
| topic | Al-Mg alloys additive manufacturing cold spray deposition localized corrosion sensitization ASTM G67 |
| url | https://www.mdpi.com/2624-5558/5/1/2 |
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