Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3)
This study presents an appropriate filler metal or welding electrode to join aluminum alloy (AA2024-T3) sheet of 3.2 mm thickness with a square butt joint using Gas Tungsten Arc Welding (GTAW) process. This process was carried out at three different welding currents with three various filler metals:...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2020-08-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_169166_6fc41f06028bcbe464a19585e24f7018.pdf |
| _version_ | 1797336405884534784 |
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| author | Muna Abbass Jihad Abd Ul-Qader |
| author_facet | Muna Abbass Jihad Abd Ul-Qader |
| author_sort | Muna Abbass |
| collection | DOAJ |
| description | This study presents an appropriate filler metal or welding electrode to join aluminum alloy (AA2024-T3) sheet of 3.2 mm thickness with a square butt joint using Gas Tungsten Arc Welding (GTAW) process. This process was carried out at three different welding currents with three various filler metals: ER4047 (12% Si), ER4043 (5% Si), and ER5356 (5% Mg). Experiments were conducted to investigate the microstructure and the mechanical properties. The effect of various filler metals upon the weld joints quality were analyzed via an X-ray radiographic and tensile test. Hardness test, microstructures, SEM, and XRD also conducted to the welded specimens. It was found that the best result was at 100 Ampere with using filler metal (ER5356) which produced the highest strength of 240 MPa in comparison with welded joints with utilizing fillers (ER4043) and (ER4047) having values of 235 MPa and 225 MPa, correspondingly. The hardness results showed that the highest hardness values were at the weld metal for ER4047 and ER4043, then decreased to HAZ and increased in the base metal. While in the case of ER5356, the highest hardness was in HAZ and decreased in the weld metal. The fractography of the fracture surface of the welded joints after the tensile test was analyzed using SEM |
| first_indexed | 2024-03-08T08:53:04Z |
| format | Article |
| id | doaj.art-27beb5e72d1942ff88aab266704f2ee4 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T08:53:04Z |
| publishDate | 2020-08-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-27beb5e72d1942ff88aab266704f2ee42024-02-01T07:35:10ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582020-08-01388A1236124510.30684/etj.v38i8A.1277169166Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3)Muna Abbass0Jihad Abd Ul-Qader1Production Engineering and Metallurgy Dept. Baghdad, Iraq,Production Engineering and Metallurgy Dept. Baghdad, Iraq,This study presents an appropriate filler metal or welding electrode to join aluminum alloy (AA2024-T3) sheet of 3.2 mm thickness with a square butt joint using Gas Tungsten Arc Welding (GTAW) process. This process was carried out at three different welding currents with three various filler metals: ER4047 (12% Si), ER4043 (5% Si), and ER5356 (5% Mg). Experiments were conducted to investigate the microstructure and the mechanical properties. The effect of various filler metals upon the weld joints quality were analyzed via an X-ray radiographic and tensile test. Hardness test, microstructures, SEM, and XRD also conducted to the welded specimens. It was found that the best result was at 100 Ampere with using filler metal (ER5356) which produced the highest strength of 240 MPa in comparison with welded joints with utilizing fillers (ER4043) and (ER4047) having values of 235 MPa and 225 MPa, correspondingly. The hardness results showed that the highest hardness values were at the weld metal for ER4047 and ER4043, then decreased to HAZ and increased in the base metal. While in the case of ER5356, the highest hardness was in HAZ and decreased in the weld metal. The fractography of the fracture surface of the welded joints after the tensile test was analyzed using SEMhttps://etj.uotechnology.edu.iq/article_169166_6fc41f06028bcbe464a19585e24f7018.pdfgtawaluminum alloy (aa2024-t3)filler metalsmicrostructuremechanical properties |
| spellingShingle | Muna Abbass Jihad Abd Ul-Qader Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3) Engineering and Technology Journal gtaw aluminum alloy (aa2024-t3) filler metals microstructure mechanical properties |
| title | Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3) |
| title_full | Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3) |
| title_fullStr | Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3) |
| title_full_unstemmed | Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3) |
| title_short | Effect of Filler Metals on Microstructure and Mechanical Properties of GTAW Welded Joints of Aluminum Alloy (AA2024-T3) |
| title_sort | effect of filler metals on microstructure and mechanical properties of gtaw welded joints of aluminum alloy aa2024 t3 |
| topic | gtaw aluminum alloy (aa2024-t3) filler metals microstructure mechanical properties |
| url | https://etj.uotechnology.edu.iq/article_169166_6fc41f06028bcbe464a19585e24f7018.pdf |
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