Publication

Improving the bonding characteristics of the friction-welded 2A14 Al alloy/steel interface by enabling mutual deformation

Date
2025
Abstract
Present study proposed a mutual plastic deformation method for friction-welded joints of 2A14 Al alloy and steel, incorporating a Ni interlayer to enable dual-interfacial deformation at the Al/Ni and Ni/steel interfaces. Compared to joints without Ni, which display a Fe-Al-O amorphous layer and a 100 nm-thick Al₂Cu layer at the interface with no grain refinement in the steel, dual-interfacial mutual deformation leads to finer grains. Additionally, it results in a thinner, semi-coherent Al-Ni-Cu ternary intermetallic layer, approximately 23 nm thick. This microstructural evolution results in a tensile strength of ∼354 MPa, a significant reduction in residual stress and improved low-cycle fatigue properties. This approach also holds promise for enhancing the properties of other dissimilar metal joints.
Supervisor
Description
Publisher
Elsevier
Citation
Materials Science and Engineering: A, 2025, 924, 147790
Collections
School of Engineering
Bernal Institute
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Aswani_2025_Improving.docx
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Keywords
Al alloy/steel, intermetallic compound, mutual deformation, friction welding, Engineering
ULRR Identifiers
https://doi.org/10.34961/researchrepository-ul.29118347
 https://hdl.handle.net/10344/14713
Funding code
Funding Information
National Natural Science Foundation of China (Grant number 52205390) and the Shandong Province Natural Science Foundation (Grant No. ZR2020QE178).
Sustainable Development Goals
(9) Industry, Innovation and Infrastructure
External Link
Type
Article
Rights
https://creativecommons.org/licenses/by-nc-sa/4.0/
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