Microstructural and Mechanical Characterization of Nitinol GTAW and FB Welds of Titanium |
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| Journal | Materials Science Forum (Volume 509) |
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| Volume | Advanced Structural Materials II |
| Edited by | H. Balmori-Ramírez, M. Brito, J.G. Cabañas-Moreno, H.A. Calderón-Benavides, K. Ishizaki and A. Salinas-Rodríguez |
| Pages | 165-170 |
| DOI | 10.4028/www.scientific.net/MSF.509.165 |
| Citation | Alla Kabatskaia Ivanovna et al., 2006, Materials Science Forum, 509, 165 |
| Online since | March, 2006 |
| Authors | Alla Kabatskaia Ivanovna, Victor M. López-Hirata, Eduardo Oliva López, Ricardo Rodríguez Figueroa, Jorge Rodríguez Miramontes |
| Keywords | Furnace Brazing, Gas Tungsten Arc Welding, Nitinol, Titanium (Ti) |
| Abstract | Microstructural and mechanical characterization of Nitinol gas tungsten arc weld (GTAW) and furnace brazing (FB) welds for grade 1 titanium plates are carried out in order to study the microstructure developed after welding and its effect on the mechanical properties of welds. The GTAW process yields the highest hardness weld. The constituents for this weld consist of a dendritic structure of NiTi and NiTi2 intermetallic phases. The FB process promotes a change of the welds chemical composition due to atomic diffusion of Ti. The weld microconstituents consist of a mixture of a Ti-rich and NiTi2 eutectic and a proeutectic Ti-rich phase. |
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