Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy
Lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy sheets in the solid state is conducted by means of electrically assisted pressure joining (EAPJ). During joining, electric current is applied to a specimen assembly under continuously compressive plastic deformation. Additional holding...
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doaj-06cc293bf19c4c319c42681af3a05b1a2021-05-24T04:30:28ZengElsevierJournal of Materials Research and Technology2238-78542021-05-0112271282Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloyShengwei Zhang0Kun Gao1Sung-Tae Hong2Hyunuk Ahn3Yoongil Choi4Siwhan Lee5Heung Nam Han6School of Mechanical Engineering, University of Ulsan, Ulsan, 44610, Republic of KoreaSchool of Mechanical Engineering, University of Ulsan, Ulsan, 44610, Republic of KoreaSchool of Mechanical Engineering, University of Ulsan, Ulsan, 44610, Republic of Korea; Corresponding author.Materials R&D Center, ILJIN Global Co. R&D Center, Seoul, 08826, Republic of KoreaMaterials R&D Center, ILJIN Global Co. R&D Center, Seoul, 08826, Republic of KoreaDepartment of Materials Science and Engineering & Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of KoreaDepartment of Materials Science and Engineering & Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of KoreaLap joining of dissimilar steel S45C and aluminum 6061-T6 alloy sheets in the solid state is conducted by means of electrically assisted pressure joining (EAPJ). During joining, electric current is applied to a specimen assembly under continuously compressive plastic deformation. Additional holding time at the elevated temperature is also applied by periodically applying electric current after the completion of compressive deformation to enhance the diffusion between the steel and aluminum alloy sheets. Microstructural analysis confirms the solid-state joining and shows that the microstructure of the joint strongly depends on the process parameters. Quasi-static lap shear tensile testing shows that joint strength increases with increasing electric current density and with increasing holding time at the elevated temperature. Fracture surface morphology suggests that brittle fracture occurs at the interface between the steel and aluminum alloy, with some amount of intermetallic compound sticking to the steel side. The present study confirms that the EAPJ concept is applicable to the joining of steel and aluminum alloy in solid state.http://www.sciencedirect.com/science/article/pii/S2238785421002179Electrically assisted pressure joiningSolid stateDissimilarSteel S45CAluminum 6061-T6 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shengwei Zhang Kun Gao Sung-Tae Hong Hyunuk Ahn Yoongil Choi Siwhan Lee Heung Nam Han |
spellingShingle |
Shengwei Zhang Kun Gao Sung-Tae Hong Hyunuk Ahn Yoongil Choi Siwhan Lee Heung Nam Han Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy Journal of Materials Research and Technology Electrically assisted pressure joining Solid state Dissimilar Steel S45C Aluminum 6061-T6 |
author_facet |
Shengwei Zhang Kun Gao Sung-Tae Hong Hyunuk Ahn Yoongil Choi Siwhan Lee Heung Nam Han |
author_sort |
Shengwei Zhang |
title |
Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy |
title_short |
Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy |
title_full |
Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy |
title_fullStr |
Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy |
title_full_unstemmed |
Electrically assisted solid state lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy |
title_sort |
electrically assisted solid state lap joining of dissimilar steel s45c and aluminum 6061-t6 alloy |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2021-05-01 |
description |
Lap joining of dissimilar steel S45C and aluminum 6061-T6 alloy sheets in the solid state is conducted by means of electrically assisted pressure joining (EAPJ). During joining, electric current is applied to a specimen assembly under continuously compressive plastic deformation. Additional holding time at the elevated temperature is also applied by periodically applying electric current after the completion of compressive deformation to enhance the diffusion between the steel and aluminum alloy sheets. Microstructural analysis confirms the solid-state joining and shows that the microstructure of the joint strongly depends on the process parameters. Quasi-static lap shear tensile testing shows that joint strength increases with increasing electric current density and with increasing holding time at the elevated temperature. Fracture surface morphology suggests that brittle fracture occurs at the interface between the steel and aluminum alloy, with some amount of intermetallic compound sticking to the steel side. The present study confirms that the EAPJ concept is applicable to the joining of steel and aluminum alloy in solid state. |
topic |
Electrically assisted pressure joining Solid state Dissimilar Steel S45C Aluminum 6061-T6 |
url |
http://www.sciencedirect.com/science/article/pii/S2238785421002179 |
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