Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints
Friction stir welded (FSW) aluminum–magnesium lightweight vehicle joints have gained significant interest due to their high strength-to-weight ratio. In this work, the corrosion resistance of this material is analyzed through electrochemical tests, which include open circuit potential (OCP) inspecti...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Corrosion and Materials Degradation |
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| Online Access: | https://www.mdpi.com/2624-5558/4/1/9 |
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| author | Qingli Ding Hrishikesh Das Piyush Upadhyay Bryer C. Sousa Kubra Karayagiz Adam Powell Brajendra Mishra |
| author_facet | Qingli Ding Hrishikesh Das Piyush Upadhyay Bryer C. Sousa Kubra Karayagiz Adam Powell Brajendra Mishra |
| author_sort | Qingli Ding |
| collection | DOAJ |
| description | Friction stir welded (FSW) aluminum–magnesium lightweight vehicle joints have gained significant interest due to their high strength-to-weight ratio. In this work, the corrosion resistance of this material is analyzed through electrochemical tests, which include open circuit potential (OCP) inspection and potentiodynamic polarization (PD) scanning. Weight loss measurements tested the corrosion rate of the FSW weld through cyclic corrosion testing (CCT) according to the standard SAEJ 2334. Mechanical properties were also investigated, including lap-shear strength, micro- and nano-hardness mapping, and true stress–strain curves as a function of local processing history. The electrochemical results indicate that the center weld zone’s corrosion property stays between the two base alloys. Indentation-based testing demonstrated that the weld zone behaves differently from base alloys. Lap shear strength surprisingly did not drop much even after eight weeks of cyclic corrosion tests, indicating that the joint did not allow any ingress of the electrolyte. |
| first_indexed | 2024-03-11T06:43:30Z |
| format | Article |
| id | doaj.art-2d2320aabadd43a38b57fea2bc2bcc16 |
| institution | Directory Open Access Journal |
| issn | 2624-5558 |
| language | English |
| last_indexed | 2024-03-11T06:43:30Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Corrosion and Materials Degradation |
| spelling | doaj.art-2d2320aabadd43a38b57fea2bc2bcc162023-11-17T10:24:40ZengMDPI AGCorrosion and Materials Degradation2624-55582023-02-014114215710.3390/cmd4010009Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg JointsQingli Ding0Hrishikesh Das1Piyush Upadhyay2Bryer C. Sousa3Kubra Karayagiz4Adam Powell5Brajendra Mishra6Department of Material Science and Engineering, Worcester Polytechnic Institute, 100 Institute Rd, Worcester, MA 01609, USAPacific Northwest National Laboratory, Richland, WA 99354, USAPacific Northwest National Laboratory, Richland, WA 99354, USADepartment of Material Science and Engineering, Worcester Polytechnic Institute, 100 Institute Rd, Worcester, MA 01609, USADepartment of Material Science and Engineering, Worcester Polytechnic Institute, 100 Institute Rd, Worcester, MA 01609, USADepartment of Material Science and Engineering, Worcester Polytechnic Institute, 100 Institute Rd, Worcester, MA 01609, USADepartment of Material Science and Engineering, Worcester Polytechnic Institute, 100 Institute Rd, Worcester, MA 01609, USAFriction stir welded (FSW) aluminum–magnesium lightweight vehicle joints have gained significant interest due to their high strength-to-weight ratio. In this work, the corrosion resistance of this material is analyzed through electrochemical tests, which include open circuit potential (OCP) inspection and potentiodynamic polarization (PD) scanning. Weight loss measurements tested the corrosion rate of the FSW weld through cyclic corrosion testing (CCT) according to the standard SAEJ 2334. Mechanical properties were also investigated, including lap-shear strength, micro- and nano-hardness mapping, and true stress–strain curves as a function of local processing history. The electrochemical results indicate that the center weld zone’s corrosion property stays between the two base alloys. Indentation-based testing demonstrated that the weld zone behaves differently from base alloys. Lap shear strength surprisingly did not drop much even after eight weeks of cyclic corrosion tests, indicating that the joint did not allow any ingress of the electrolyte.https://www.mdpi.com/2624-5558/4/1/9friction stir weldcorrosionintermetallicelectrochemical testingmicroindentationlap-shear strength |
| spellingShingle | Qingli Ding Hrishikesh Das Piyush Upadhyay Bryer C. Sousa Kubra Karayagiz Adam Powell Brajendra Mishra Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints Corrosion and Materials Degradation friction stir weld corrosion intermetallic electrochemical testing microindentation lap-shear strength |
| title | Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints |
| title_full | Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints |
| title_fullStr | Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints |
| title_full_unstemmed | Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints |
| title_short | Microstructural, Corrosion, and Mechanical Characterization of Friction Stir Welded Al 6022-to-ZEK100 Mg Joints |
| title_sort | microstructural corrosion and mechanical characterization of friction stir welded al 6022 to zek100 mg joints |
| topic | friction stir weld corrosion intermetallic electrochemical testing microindentation lap-shear strength |
| url | https://www.mdpi.com/2624-5558/4/1/9 |
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