Effect of post-weld heat-treatment on the oxide film and corrosion behaviour of laser-welded shape memory NiTi wires
| Data(s) |
01/03/2012
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| Resumo |
Post-weld heat-treatment (PWHT) was applied to NiTi weldments to improve the corrosion behaviour by modifying the microstructure and surface composition. The surface oxide film on the weldments is principally TiO2, together with some Ti, TiO, and Ti2O3. The surface Ti/Ni ratio of the weldments after PWHT is increased. The oxide film formed in Hanks’ solution is thicker on the weldments after PWHT. The pitting resistance of the weldments is increased by PWHT. The galvanic effect in the weldments is very small. The weldment with PWHT at 350 °C shows the best corrosion resistance among other heat-treated weldments in this study. |
| Formato |
application/pdf |
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/restrictedAccess |
| Fonte |
Chan , C W , Man , H C & Yue , T M 2012 , ' Effect of post-weld heat-treatment on the oxide film and corrosion behaviour of laser-welded shape memory NiTi wires ' Corrosion Science , vol 56 , pp. 158-167 . DOI: 10.1016/j.corsci.2011.11.020 |
| Palavras-Chave | #Intermetallics #EIS #XPS #Pitting Corrosion #Passive films #Welding #/dk/atira/pure/subjectarea/asjc/2500/2506 #Metals and Alloys |
| Tipo |
article |
