Investigating the influence of Ni interlayers on Fe/Al laser welded joints: A first-principles study
In: Journal of Materials Research and Technology, Jg. 30 (2024-05-01), Heft 7485-7494, S. 7485-7494
Online
academicJournal
Zugriff:
201 Stainless steel and 5052 aluminium alloy were laser lap welded, both with and without a Ni foil interlayer. The Ni addition enhanced the metallurgical reaction between molten stainless steel/aluminium, resulting in the formation of the Al0.9Ni1.1 intermetallic compound. First-principles calculations estimated the equilibrium lattice and properties of IMCs (intermetallic compounds). A structural model of the interface revealed that the bonding strengths of Al/IMC and Fe/IMC interfaces surpassed those of IMC/IMC interfaces, making cracks prone to initiate and expand at the latter. Joints without Ni reached a max tensile shear strength of 74.5 N/mm, while those with Ni increased significantly to 101.8 N/mm, marking a substantial 36.6% enhancement.
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Investigating the influence of Ni interlayers on Fe/Al laser welded joints: A first-principles study
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Autor/in / Beteiligte Person: | Wu, Haoyue ; Yang, Guang ; Li, Yue ; Lei, Min ; Li, Xuewen ; Li, Yulong |
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Zeitschrift: | Journal of Materials Research and Technology, Jg. 30 (2024-05-01), Heft 7485-7494, S. 7485-7494 |
Veröffentlichung: | Elsevier, 2024 |
Medientyp: | academicJournal |
ISSN: | 2238-7854 (print) |
DOI: | 10.1016/j.jmrt.2024.05.032 |
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