A PM 2124Al-20SiCp composite: disappearance of true threshold creep behaviour at high testing temperatures
| Autor: | K. Kucharova, V. Šustek, J. Čadek |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Materials science
Mechanical Engineering Composite matrix Composite number Metallurgy Threshold stress Alloy Metals and Alloys chemistry.chemical_element engineering.material Condensed Matter Physics Matrix (geology) Creep chemistry Mechanics of Materials Aluminium Powder metallurgy engineering General Materials Science Composite material |
| Zdroj: | Scripta Materialia. 40:1269-1275 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/s1359-6462(99)00064-0 |
| Popis: | During the recent several years it has been well recognized that the creep behavior in discontinuous aluminum and aluminum alloy matrix composites processed by powder metallurgy is associated with a true threshold stress at least up to a temperature of about 700 K. In the present paper, an attempt is made to interpret the disappearance of the true threshold behavior in terms of transition from the athermal to thermally activated detachment of dislocations from fine ``interacting`` alumina particles present in the PM 2124Al-20SiC{sub p} composite matrix. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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