Evaluación de la resistencia mecánica de la unión soldada en la aleación de aluminio 6261
The relationship between peak temperatures, microhardness, microstructure, failure location and strength in the heat-affected zone (HAZ) of gas metal arc (GMAW) welded joints of extruded aluminum alloy 6261-T6 and T5 were investigated. The experimental data obtained have a good correlation with...
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| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | español |
| Publicado: |
2005
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| Materias: | |
| Acceso en línea: | https://dialnet.unirioja.es/servlet/oaiart?codigo=9821488 |
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| Sumario: | The relationship between peak temperatures, microhardness, microstructure, failure location and strength in the heat-affected zone (HAZ) of gas metal arc (GMAW) welded joints of extruded aluminum alloy 6261-T6 and T5 were investigated. The experimental data obtained have a good correlation with precipitate distribution reported in the literature. This resulted in a plane of minimum hardness within the HAZ where hardness may be less than 70% of that for the base metal. Failure during tensile testing typically occurred through this region regardless of the welding variables used. The peak temperature profiles were determined in the HAZ and compared with the corresponding hardness profiles. It was found that the minimum hardness and the location of failure of the tensile specimens in the HAZ occurred in the region subjected to a temperature of 716°F (380°C). |
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