Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding
In this study, failure mechanism under tensile loading of the joint interfaces Cu-AISI4140 steel fabricated by spark plasma welding (SPW) is investigated. The SPW process was conducted at 700 °C and a pressure of 20 MPa for durations of 5, 15, 30, and 60 min. Tensile loading was applied to evaluate...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424028965 |
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| author | Mehdi Naderi Mohammad Reza Toroghinejad Ahmad Kermanpur |
| author_facet | Mehdi Naderi Mohammad Reza Toroghinejad Ahmad Kermanpur |
| author_sort | Mehdi Naderi |
| collection | DOAJ |
| description | In this study, failure mechanism under tensile loading of the joint interfaces Cu-AISI4140 steel fabricated by spark plasma welding (SPW) is investigated. The SPW process was conducted at 700 °C and a pressure of 20 MPa for durations of 5, 15, 30, and 60 min. Tensile loading was applied to evaluate mechanical properties of the joints. Microstructural analyses of the joints were performed using scanning electron microscopy, while the fracture surfaces of the samples after tensile testing were examined using field emission scanning electron microscopy. Grazing incidence X-ray diffraction was employed to identify phases at the joint interface on fracture surface of the joints. The results revealed that the SPW process facilitated the forced mixing of Cu in steel and Fe in Cu, without formation of any inter-metallic compound at the joint interface. Additionally, strength of the joint formed over a 60-min duration approached that of Cu. Examination of the fracture surfaces indicated brittle failure in the elastic zone for joints formed over a 5-min duration. As the process time increased to 15 and 30 min, brittle and ductile ruptures occurred, respectively, before reaching the maximum stress in the engineering stress-strain curve. In the joint formed over a 60-min duration, rupture did not occur at the joint interface before reaching the maximum stress in the engineering stress-strain curve. Instead, with the development of micro-necking at numerous areas of the joint interface, ductile failure occurred after reaching the maximum stress. |
| format | Article |
| id | doaj-art-745f36fea2a54f289733bc3e25ae9666 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-745f36fea2a54f289733bc3e25ae96662025-01-19T06:25:24ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013412751287Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma weldingMehdi Naderi0Mohammad Reza Toroghinejad1Ahmad Kermanpur2Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranCorresponding author.; Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranDepartment of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranIn this study, failure mechanism under tensile loading of the joint interfaces Cu-AISI4140 steel fabricated by spark plasma welding (SPW) is investigated. The SPW process was conducted at 700 °C and a pressure of 20 MPa for durations of 5, 15, 30, and 60 min. Tensile loading was applied to evaluate mechanical properties of the joints. Microstructural analyses of the joints were performed using scanning electron microscopy, while the fracture surfaces of the samples after tensile testing were examined using field emission scanning electron microscopy. Grazing incidence X-ray diffraction was employed to identify phases at the joint interface on fracture surface of the joints. The results revealed that the SPW process facilitated the forced mixing of Cu in steel and Fe in Cu, without formation of any inter-metallic compound at the joint interface. Additionally, strength of the joint formed over a 60-min duration approached that of Cu. Examination of the fracture surfaces indicated brittle failure in the elastic zone for joints formed over a 5-min duration. As the process time increased to 15 and 30 min, brittle and ductile ruptures occurred, respectively, before reaching the maximum stress in the engineering stress-strain curve. In the joint formed over a 60-min duration, rupture did not occur at the joint interface before reaching the maximum stress in the engineering stress-strain curve. Instead, with the development of micro-necking at numerous areas of the joint interface, ductile failure occurred after reaching the maximum stress.http://www.sciencedirect.com/science/article/pii/S2238785424028965Spark plasma weldingCu-AISI4140 steel jointFractureFailure and micro-necking |
| spellingShingle | Mehdi Naderi Mohammad Reza Toroghinejad Ahmad Kermanpur Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding Journal of Materials Research and Technology Spark plasma welding Cu-AISI4140 steel joint Fracture Failure and micro-necking |
| title | Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding |
| title_full | Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding |
| title_fullStr | Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding |
| title_full_unstemmed | Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding |
| title_short | Investigation of failure mechanism in tensile loading of Cu-AISI4140 steel joints fabricated by spark plasma welding |
| title_sort | investigation of failure mechanism in tensile loading of cu aisi4140 steel joints fabricated by spark plasma welding |
| topic | Spark plasma welding Cu-AISI4140 steel joint Fracture Failure and micro-necking |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424028965 |
| work_keys_str_mv | AT mehdinaderi investigationoffailuremechanismintensileloadingofcuaisi4140steeljointsfabricatedbysparkplasmawelding AT mohammadrezatoroghinejad investigationoffailuremechanismintensileloadingofcuaisi4140steeljointsfabricatedbysparkplasmawelding AT ahmadkermanpur investigationoffailuremechanismintensileloadingofcuaisi4140steeljointsfabricatedbysparkplasmawelding |