Abstract
The present study employed swing filler wire to enhance the microstructure and properties of thick joints in Ti–6Al–4V titanium alloy by narrow gap alternating-magnetic-field-assisted tungsten gas welding (AMF-GTAW). Results show that the addition of swing filler wire resulted in the refinement of prior β grains and α laths. Consequently, the tensile strength exhibited an increase from 877 ± 13 MPa to 913 ± 24 MPa (4.1% increase), while the fracture elongation showed a significant improvement from 6.3% ± 1.1% to 8.7% ± 0.9% (38.1% increase). The introduction of swing filler wire alters the flow state of the molten pool and exerts a stirring effect on its entirety. This stirring effect promotes nucleation and dendrite fragmentation within the molten pool.
Keywords
Get full access to this article
View all access options for this article.
References
Supplementary Material
Please find the following supplemental material available below.
For Open Access articles published under a Creative Commons License, all supplemental material carries the same license as the article it is associated with.
For non-Open Access articles published, all supplemental material carries a non-exclusive license, and permission requests for re-use of supplemental material or any part of supplemental material shall be sent directly to the copyright owner as specified in the copyright notice associated with the article.
