| Autor: |
Zoltán Száraz, Zuzanka Trojanová |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Key Engineering Materials. 465:419-422 |
| ISSN: |
1662-9795 |
| DOI: |
10.4028/www.scientific.net/kem.465.419 |
| Popis: |
The deformation characteristics of the WE54 magnesium alloy reinforced by 13% of SiC particles have been investigated in tension at elevated temperatures. Composite material was prepared by powder metallurgy technique. The strain rate sensitivity parameter m has been estimated by the abrupt strain rate changes (SRC) method. SRC tests and tensile tests with constant strain rate ( ) were performed at temperatures from 350 to 500 °C. Increased ductility has been found at high strain rates. The corresponding m value was 0.3. The activation energy Q has been estimated. Microstructure evolution has been observed by the light microscope and scanning electron microscope. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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