Improving the bonding characteristics of the friction-welded 2A14 Al alloy/steel interface by enabling mutual deformation
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.
History
Publication
Materials Science and Engineering: A, 2025, 924, 147790Publisher
ElsevierOther Funding information
The authors would like to thank the financial support from the National Natural Science Foundation of China (Grant number 52205390) and the Shandong Province Natural Science Foundation (Grant No. ZR2020QE178).Rights
This is the author’s version of a work that was accepted for publication in Materials Science and Engineering: A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Science and Engineering: A, Volume 924, February 2025, 147790, https://doi.org/10.1016/j.msea.2025.147790Also affiliated with
- Bernal Institute
Sustainable development goals
- (9) Industry, Innovation and Infrastructure
External identifier
Department or School
- School of Engineering
