| Autor: |
Seung Y. Yang, Bong H. Kim, Da B. Lee, Kweon H. Choi, Nam S. Kim, Seong H. Ha, Young O. Yoon, Hyun K. Lim, Shae Kim, Young J. Kim |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Archives of Metallurgy and Materials, Vol vol. 66, Iss No 4, Pp 1013-1018 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2300-1909 |
| DOI: |
10.24425/amm.2021.136416 |
| Popis: |
In this paper, as a purpose to apply the supersaturated solid-solutionized Al-9Mg alloy to the structural sheet parts of automotive, tensile tests were conducted under the various conditions and a constitutive equation was derived from the tensile test results. Al-9Mg alloy was produced using a special Mg master alloy containing Al2Ca during the casting process and extruded into the sheet. In order to study the deformation behavior of Al-9Mg alloy in warm temperature forming environments, tensile tests were conducted under the temperature of 373 K-573 K and the strain rate of 0.001/s~0.1/s. In addition, by using the raw data obtained from tensile tests, a constitutive equation of the Al-9Mg alloy was derived for predicting the optimized condition of the hot stamping process. Al-9Mg alloy showed uncommon deformation behavior at the 373 K and 473 K temperature conditions. The calculated curves from the constitutive equation well-matched with the measured curves from the experiments particularly under the low temperature and high strain rate conditions. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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