Hot Forming Optimization of ZK30 Magnesium Alloy
| Autor: | Manuel Carsí, Oscar Antonio Ruano, Fernando Carreño |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Lyapunov Criteria Hot working Mechanics of Materials Garofalo Equation 0103 physical sciences General Materials Science Magnesium alloy Magnesium Alloy 0210 nano-technology Hot Working |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0255-5476 |
| Popis: | The modeling of the forming of materials at high homologous temperatures allows obtaining optimum forming parameters, reduced costs and improving final properties of the finished product. In this work, the behavior of the ZK30 Magnesium alloy was characterized by means of compression tests at temperatures 300 to 450ºC and strain rates between 0.1 and 8.7 s. Using data from these tests, the parameters of the Garofalo equation are calculated. In addition, by means of the second Lyapunov stability criterion, the optimum temperature at a given temperature is determined which should minimize the appearance of deformation bands and cracks during hot working. This temperature was found to be 641 K (368ºC) at 8.7 s-1. |
| Databáze: | OpenAIRE |
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