Effect of electromagnetic interaction during fusion welding of AISI 2205 duplex stainless steel on the corrosion resistance
| Autor: | Víctor H. López-Morelos, R. García-Hernández, J. González-Sánchez, F.F. Curiel-López, M.A. García-Rentería, L. Dzib-Pérez |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Austenite Heat-affected zone Materials science Metallurgy General Physics and Astronomy 02 engineering and technology Surfaces and Interfaces General Chemistry Welding 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Chloride Surfaces Coatings and Films Corrosion law.invention Fusion welding law 0103 physical sciences Pitting corrosion medicine 0210 nano-technology Dissolution medicine.drug |
| Zdroj: | Applied Surface Science. 396:1187-1200 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2016.11.109 |
| Popis: | The effect of electromagnetic interaction of low intensity (EMILI) applied during fusion welding of AISI 2205 duplex stainless steel on the resistance to localised corrosion in natural seawater was investigated. The heat affected zone (HAZ) of samples welded under EMILI showed a higher temperature for pitting initiation and lower dissolution under anodic polarisation in chloride containing solutions than samples welded without EMILI. The EMILI assisted welding process developed in the present work enhanced the resistance to localised corrosion due to a modification on the microstructural evolution in the HAZ and the fusion zone during the thermal cycle involved in fusion welding. The application of EMILI reduced the size of the HAZ, limited coarsening of the ferrite grains and promoted regeneration of austenite in this zone, inducing a homogeneous passive condition of the surface. EMILI can be applied during fusion welding of structural or functional components of diverse size manufactured with duplex stainless steel designed to withstand aggressive environments such as natural seawater or marine atmospheres. |
| Databáze: | OpenAIRE |
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