Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux
The overlapping welding was carried out in keyhole mode between austenitic stainless steel 304 l and aluminum alloy 5083 using a low power fiber laser in continuous irradiation. The significant content of magnesium as the alloying element with low boiling point and high vapor pressure inside the AA...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015-12-01
|
| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127515302641 |
| _version_ | 1819091633614880768 |
|---|---|
| author | M.A. Ezazi Farazila Yusof Ahmed A.D. Sarhan Mohd Hamdi Abdul Shukor M. Fadzil |
| author_facet | M.A. Ezazi Farazila Yusof Ahmed A.D. Sarhan Mohd Hamdi Abdul Shukor M. Fadzil |
| author_sort | M.A. Ezazi |
| collection | DOAJ |
| description | The overlapping welding was carried out in keyhole mode between austenitic stainless steel 304 l and aluminum alloy 5083 using a low power fiber laser in continuous irradiation. The significant content of magnesium as the alloying element with low boiling point and high vapor pressure inside the AA 5083 matrix can induce the spatter formation and depression on surface of the weld beads upon laser beam absorption and temperature growth which can deteriorate the mechanical properties and appearance of the joints. To reduce these defects, a variety of single and multi-components activating fluxes including oxide-based TiO2 and halide-based CaF2 flux powders were pre-placed on the surface of welding material prior to laser welding. The EDX and XRD analyses in addition to microhardness and shear tests were carried out to characterize the joints. The obtained results showed that, the oxide and halide activating fluxes can significantly improve the joints' strength up to 1.48 and 1.85 times in average respectively compared with autogenous joint. It was deduced that the simultaneous effect of significant decrease in joints' surface depression leading to welds' geometry improvement in addition to less formation of interfacial Fe–Al intermetallics, were the major causes for considerable strength improvements. Keywords: Dissimilar materials welding, Fiber laser, Activating flux, Stainless steel 304 l, Aluminum alloy 5083 |
| first_indexed | 2024-12-21T22:42:50Z |
| format | Article |
| id | doaj.art-e6d0a457a9894a4f956fa058d6407108 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-21T22:42:50Z |
| publishDate | 2015-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-e6d0a457a9894a4f956fa058d64071082022-12-21T18:47:47ZengElsevierMaterials & Design0264-12752015-12-0187105123Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating fluxM.A. Ezazi0Farazila Yusof1Ahmed A.D. Sarhan2Mohd Hamdi Abdul Shukor3M. Fadzil4Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Center of Advanced Manufacturing and Material Processing (AMMP Centre), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaDepartment of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Center of Advanced Manufacturing and Material Processing (AMMP Centre), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Corresponding author at: Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Center of Advanced Manufacturing and Material Processing (AMMP Centre), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaDepartment of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Center of Advanced Manufacturing and Material Processing (AMMP Centre), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaCenter of Advanced Manufacturing and Material Processing (AMMP Centre), Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaThe overlapping welding was carried out in keyhole mode between austenitic stainless steel 304 l and aluminum alloy 5083 using a low power fiber laser in continuous irradiation. The significant content of magnesium as the alloying element with low boiling point and high vapor pressure inside the AA 5083 matrix can induce the spatter formation and depression on surface of the weld beads upon laser beam absorption and temperature growth which can deteriorate the mechanical properties and appearance of the joints. To reduce these defects, a variety of single and multi-components activating fluxes including oxide-based TiO2 and halide-based CaF2 flux powders were pre-placed on the surface of welding material prior to laser welding. The EDX and XRD analyses in addition to microhardness and shear tests were carried out to characterize the joints. The obtained results showed that, the oxide and halide activating fluxes can significantly improve the joints' strength up to 1.48 and 1.85 times in average respectively compared with autogenous joint. It was deduced that the simultaneous effect of significant decrease in joints' surface depression leading to welds' geometry improvement in addition to less formation of interfacial Fe–Al intermetallics, were the major causes for considerable strength improvements. Keywords: Dissimilar materials welding, Fiber laser, Activating flux, Stainless steel 304 l, Aluminum alloy 5083http://www.sciencedirect.com/science/article/pii/S0264127515302641 |
| spellingShingle | M.A. Ezazi Farazila Yusof Ahmed A.D. Sarhan Mohd Hamdi Abdul Shukor M. Fadzil Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux Materials & Design |
| title | Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux |
| title_full | Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux |
| title_fullStr | Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux |
| title_full_unstemmed | Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux |
| title_short | Employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre-placed activating flux |
| title_sort | employment of fiber laser technology to weld austenitic stainless steel 304 l with aluminum alloy 5083 using pre placed activating flux |
| url | http://www.sciencedirect.com/science/article/pii/S0264127515302641 |
| work_keys_str_mv | AT maezazi employmentoffiberlasertechnologytoweldausteniticstainlesssteel304lwithaluminumalloy5083usingpreplacedactivatingflux AT farazilayusof employmentoffiberlasertechnologytoweldausteniticstainlesssteel304lwithaluminumalloy5083usingpreplacedactivatingflux AT ahmedadsarhan employmentoffiberlasertechnologytoweldausteniticstainlesssteel304lwithaluminumalloy5083usingpreplacedactivatingflux AT mohdhamdiabdulshukor employmentoffiberlasertechnologytoweldausteniticstainlesssteel304lwithaluminumalloy5083usingpreplacedactivatingflux AT mfadzil employmentoffiberlasertechnologytoweldausteniticstainlesssteel304lwithaluminumalloy5083usingpreplacedactivatingflux |