Intermetallic compounds growth and morphology evolution of Al6061/SS304 electromagnetic pulse welding joint interface during post-weld heat treatment

Zhang, Liping; Wen, Jinpeng; Xie, Jilin; Gou, Yi; Zhang, Hehe; Chen, Yuhua; Yin, Limeng; Zhang, Long; Gao, Lei; Wang, Gang

doi:10.1016/j.jmrt.2023.12.282

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…A slight amount of Mn element seems to be visible in Figure 4f, while slight enrichment in Si element can be carefully identified in Figure 4e. These elements play a crucial role in controlling the growth of interfacial intermetallic compounds [39][40][41][42][43].…”

Section: Microstructure Characteristics Of Rsw Jointsmentioning

confidence: 99%

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Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Shi,

Zhang,

et al. 2024

Materials

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Corrosion behavior is critical to the application of lightweight aluminum/steel joints using new resistance spot welding (RSW) technology. The study investigated the corrosion mechanism and the shear strength of RSW joints comprising 1.2 mm 5182 aluminum and 1.5 mm DP780 galvanized steel. Electrochemical corrosion tests were conducted on the base materials and various positions of the welds in a 3.5% NaCl solution. This result revealed that the corrosion susceptibility of the interfacial intermetallic compound (IMC) layer was not accelerated by the aluminum nugget because of the noble corrosion potential. Subsequently, the spray acceleration test was employed to investigate the corrosion mechanism. It is noteworthy that microcracks, as well as regions enriched with silicon and oxygen at the interface front, are preferential to corrosion during salt spray exposure, instead of the IMC layer. Moreover, the shear strength of the joints decreases with the reduction in the effective joint area after the salt spray exposure of the weld joints. This research systematically explored the corrosion behavior and its relationship with the mechanical properties of Al alloy/steel RSW joints.

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Section: Microstructure Characteristics Of Rsw Jointsmentioning

confidence: 99%

“…17, x FOR PEER REVIEW 6 of 15elements play a crucial role in controlling the growth of interfacial intermetallic compounds[39][40][41][42][43].…”

mentioning

confidence: 99%

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Shi,

Zhang,

et al. 2024

Materials

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show abstract

A novel multi-spot structure for joining aluminum and steel dissimilar thin-walled tubes by magnetic pulse crimping

Wang,

Peng,

Wang

et al. 2024

Thin-Walled Structures

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Intermetallic compounds growth and morphology evolution of Al6061/SS304 electromagnetic pulse welding joint interface during post-weld heat treatment

Cited by 2 publications

References 30 publications

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

A novel multi-spot structure for joining aluminum and steel dissimilar thin-walled tubes by magnetic pulse crimping

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