Effect of homogenization process on the hardness of Zn–Al–Cu alloys
| Autor: | Victor M. Lopez-Hirata, Maribel L. Saucedo-Muñoz, Erika O. Avila-Davila, Jorge L. Gonzalez-Velazquez, Jose D. Villegas-Cardenas, Antonio De Ita-De la Torre |
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| Rok vydání: | 2015 |
| Předmět: |
Diffraction
Materials science Scanning electron microscope Mechanical Engineering Metallurgy Alloy Metals and Alloys engineering.material Microstructure Homogenization (chemistry) law.invention Optical microscope Geochemistry and Petrology Mechanics of Materials law Metallic materials Materials Chemistry engineering Chemical composition |
| Zdroj: | International Journal of Minerals, Metallurgy, and Materials. 22:1076-1081 |
| ISSN: | 1869-103X 1674-4799 |
| DOI: | 10.1007/s12613-015-1170-3 |
| Popis: | The effect of a homogenizing treatment on the hardness of as-cast Zn–Al–Cu alloys was investigated. Eight alloy compositions were prepared and homogenized at 350 °C for 180 h, and their Rockwell “B” hardness was subsequently measured. All the specimens were analyzed by X-ray diffraction and metallographically prepared for observation by optical microscopy and scanning electron microscopy. The results of the present work indicated that the hardness of both alloys (as-cast and homogenized) increased with increasing Al and Cu contents; this increased hardness is likely related to the presence of the θ and τ′ phases. A regression equation was obtained to determine the hardness of the homogenized alloys as a function of their chemical composition and processing parameters, such as homogenization time and temperature, used in their preparation. |
| Databáze: | OpenAIRE |
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