ISSN:
1662-9779
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Physik
Notizen:
Nanocrystalline Al-based alloys containing silicon (Si), rare earth metal (RE) and latetransition metal (Ni), combine high tensile strength and good wear resistance. The aim of thiswork was to manufacture high strength bulk nanocrystalline alloys from Al-Si-Ni-Mmsystem. Bulk nanostructured alloys were produced by ball-milling of nanocrystalline ribbonsfollowed by high-pressure (7.7 GPa) hot compaction (320ºC). Nanocrystalline ribbons ofinvestigated alloys were produced by melt-spinning technique. The crystallization processwas studied using differential scanning calorimeter. The phase compositions of the ribbonswere characterized by X-ray diffraction, scanning and transmission electron microscopy.Vickers hardness of nanostructured compacted samples, measured with the load of 1 kG,achieved values five times higher than that of commercial 4xxx series Al alloy
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.130.189.pdf
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