Evaluación de las propiedades mecánicas y metalúrgicas de aleaciones Al5Mg y Al10Mg modificadas con 2% de Zn después del tratamiento térmico de envejecimiento
Since ancient times, man has used different materials and many of them have been combined in order to improve their physicochemical and mechanical properties for different uses. The objective of this research is to determine the influence of the addition of a small amount of zinc (2%) on the mechani...
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| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | español |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | https://dialnet.unirioja.es/servlet/oaiart?codigo=8791556 |
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| Sumario: | Since ancient times, man has used different materials and many of them have been combined in order to improve their physicochemical and mechanical properties for different uses. The objective of this research is to determine the influence of the addition of a small amount of zinc (2%) on the mechanical properties of two representative Aluminum-Magnesium alloys, such as Al5Mg and Al10Mg. Methodologically, the procedure used initially included a review of the state of the art on the principles of basic or fundamental heat treatments, then the design of the casting was carried out to obtain the specimens under optimum conditions. The experimental development consisted of the selection of the molding medium, model design, melting and heat treatment process of artificial and natural aging of the modified Aluminum-Magnesium alloy. Subsequently, tests were carried out to evaluate mechanical properties (tensile strength, hardness) as well as metallurgical parameters (castability, hot cracking). The specimens with 10% Mg content aged for 14 hours at a temperature of 150ºC, and the specimens with 5% Mg content aged for 16 hours at a temperature of 150ºC recorded the best mechanical properties, as did the Al5Mg specimens subjected to heat treatment (homogenization and quenching) aged for 30 days. It was concluded that the added Zn content had a direct effect on the results obtained in the heat treatment (solubilization, quenching and artificial aging), in terms of the improvement of the mechanical properties. |
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