| Autor: |
Nicolicescu, Claudiu, Nicoara, Victor Horia, Predescu, Constantin |
| Předmět: |
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| Zdroj: |
Metalurgia; jul2012, Vol. 64 Issue 6, p12-16, 5p |
| Abstrakt: |
The paper presents the experimental results regarding tribological behavior of some W/Cu nanostructured materials elaborated by mechanical alloying (MA) process. It was studied W/Cu system with different concentrations (85%W-Cu; 80%W-Cu; 75%W-Cu). The MA process was carried out in a Pulverisette 4 vario ball mill for different times: 2-8 hours. The MA parameters were: grinding bowls volume: 250 ml; grinding bowls material: stainless steel; grinding balls diameter: Φ=10 mm; grinding balls number: 50; grinding balls material: stainless steel; material/balls ratio: 1/5 (40g powder and 200 g balls); alloying medium: air; alloying; main disk speed: 350 [rot/min]; planets speed -700 [rot/min]. It was studied the influence of the MA parameters on the tribological behavior of W/Cu materials. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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