How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches
Joining aluminum alloys with arc welding methods is frequently subject to literature and industrial applications. Although aluminum alloys have different difficulties in the arc welded process, the formation and elimination of solidification cracking defects is a more complex phenomenon. Since avoid...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad16ab |
| _version_ | 1797372419720085504 |
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| author | Coşkun Yolcu Fatih Kahraman |
| author_facet | Coşkun Yolcu Fatih Kahraman |
| author_sort | Coşkun Yolcu |
| collection | DOAJ |
| description | Joining aluminum alloys with arc welding methods is frequently subject to literature and industrial applications. Although aluminum alloys have different difficulties in the arc welded process, the formation and elimination of solidification cracking defects is a more complex phenomenon. Since avoidance of this defect requires specific approaches and methods, special attempts and improvements have been studied frequently on this subject in recent years. Studies in the literature have clearly shown that this defect, which is often encountered in aluminum alloys, takes place along the grain boundaries. Therefore, the major approach to eliminate this defect is activating nucleation and decreasing the grain size. In this context, modification approaches in the literature, which are frequently used for arc welding of aluminum alloys, have been developed to use three different mechanisms including heterogeneous nucleation, dendrite fragmentation, and grain detachment. While it is aimed to increase heterogeneous nucleation by reinforcing filler metals with compounds in the inoculation approach; dendrite fragmentation and grain detachment are also aimed in the approaches where external effects and forces are used. Within the frame of references, it is also possible to review the external factors aiming to improve weld pool convection and thermal conditions under two headings, which are weld pool stirring and pulsed arc current approaches. The weld pool stirring approach also includes ultrasonic treatment and magnetic arc oscillation methods. In this study, solidification cracking defect that frequently occurs in the arc welding of aluminum alloys is explained fundamentally and the attempts to eliminate this defect are presented as a review paper in a comprehensive manner. |
| first_indexed | 2024-03-08T18:35:31Z |
| format | Article |
| id | doaj.art-30dd205f96b04752a6b6c3002a21d74f |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-08T18:35:31Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-30dd205f96b04752a6b6c3002a21d74f2023-12-29T11:45:48ZengIOP PublishingMaterials Research Express2053-15912023-01-01101212200310.1088/2053-1591/ad16abHow to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approachesCoşkun Yolcu0https://orcid.org/0000-0001-7335-3091Fatih Kahraman1https://orcid.org/0000-0002-1075-9171Mechanical Engineering Department, Dokuz Eylül University , İzmir, Türkiye; The Graduate School of Natural and Applied Sciences, Dokuz Eylül University , İzmir, TürkiyeMechanical Engineering Department, Dokuz Eylül University , İzmir, TürkiyeJoining aluminum alloys with arc welding methods is frequently subject to literature and industrial applications. Although aluminum alloys have different difficulties in the arc welded process, the formation and elimination of solidification cracking defects is a more complex phenomenon. Since avoidance of this defect requires specific approaches and methods, special attempts and improvements have been studied frequently on this subject in recent years. Studies in the literature have clearly shown that this defect, which is often encountered in aluminum alloys, takes place along the grain boundaries. Therefore, the major approach to eliminate this defect is activating nucleation and decreasing the grain size. In this context, modification approaches in the literature, which are frequently used for arc welding of aluminum alloys, have been developed to use three different mechanisms including heterogeneous nucleation, dendrite fragmentation, and grain detachment. While it is aimed to increase heterogeneous nucleation by reinforcing filler metals with compounds in the inoculation approach; dendrite fragmentation and grain detachment are also aimed in the approaches where external effects and forces are used. Within the frame of references, it is also possible to review the external factors aiming to improve weld pool convection and thermal conditions under two headings, which are weld pool stirring and pulsed arc current approaches. The weld pool stirring approach also includes ultrasonic treatment and magnetic arc oscillation methods. In this study, solidification cracking defect that frequently occurs in the arc welding of aluminum alloys is explained fundamentally and the attempts to eliminate this defect are presented as a review paper in a comprehensive manner.https://doi.org/10.1088/2053-1591/ad16abgrain refinementinoculationmagnetic fieldultrasonic vibrationpulsed current weldingweld metal modification |
| spellingShingle | Coşkun Yolcu Fatih Kahraman How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches Materials Research Express grain refinement inoculation magnetic field ultrasonic vibration pulsed current welding weld metal modification |
| title | How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches |
| title_full | How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches |
| title_fullStr | How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches |
| title_full_unstemmed | How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches |
| title_short | How to avoid solidification cracking in arc welding of aluminum alloys: a review on weld metal grain refinement approaches |
| title_sort | how to avoid solidification cracking in arc welding of aluminum alloys a review on weld metal grain refinement approaches |
| topic | grain refinement inoculation magnetic field ultrasonic vibration pulsed current welding weld metal modification |
| url | https://doi.org/10.1088/2053-1591/ad16ab |
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