Grain Boundary Motion in Magnetic-Pulse-Welded Al-Fe Bimetal Systems: An Atomistic Simulation Study

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dc.contributor.authorFan, Z.
dc.contributor.authorWang, X.
dc.contributor.authorXie, M.
dc.contributor.authorNing, H.
dc.contributor.authorDeng, J.
dc.date.accessioned2025-09-21T18:21:53Z
dc.date.available2025-09-21T18:21:53Z
dc.date.issued2025-08-26
dc.description.abstractMagnetic pulse welding (MPW) is an ef ective solid-state welding method of joining dissimilar metals such as Al/Steel, Al/Ti, Al/Cu et al. In order to understand fully such important phenomena as atomic dif usion, grain boundary motion, interfacial non- equilibrium-phase nucleation and growth in MPW, a detailed microscopic description of the MPW interface is necessary. This study is an extension of our previous work. In the present work, we extend the simulation investigation to polycrystal aluminium and iron systems using Molecular dynamic (MD) method. The polycrystal systems allow for the study of interfacial segregation. Our simulations present structural information on the GBs in nanocrystalline microstructures. Flat GBs can move when subjected dynamic load resulting from the high-velocity impact. Plots of the ratio of GB atoms versus time show a distinctly dif erent GB migration behaviors between loading and unloading conditions. By contrast with our earlier simulations, it was observed that crystal order and stability are highly preserved in the loading stage. The transformation of grain boundary structural change is due to stress-driven GB migration and temperature dependent as well. Grain rotation mechanism was identified. This work could provide atomistic insights into the grain refinement during MPW process.en
dc.identifier.urihttp://hdl.handle.net/2003/43914
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-25682
dc.language.isoen
dc.relation.ispartof10th International Conference on High Speed Formingen
dc.subjectMagnetic pulse weldingen
dc.subjectGrain boundariesen
dc.subjectMolecular dynamicsen
dc.subject.ddc620
dc.subject.ddc670
dc.subject.rswkElektromagnetisches Pulsschweißen
dc.subject.rswkBimetall
dc.subject.rswkAluminium
dc.subject.rswkEisen
dc.subject.rswkKorngrenzenwanderung
dc.subject.rswkMolekulardynamik
dc.titleGrain Boundary Motion in Magnetic-Pulse-Welded Al-Fe Bimetal Systems: An Atomistic Simulation Studyen
dc.typeText
dc.type.publicationtypeConferencePaper
dcterms.accessRightsopen access
eldorado.dnb.deposittrue
eldorado.secondarypublicationfalse

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