Infiltration Behavior Of Mechanical Alloyed 75 wt% Cu-25 wt% WC Powders Into Porous WC Compacts

• Autorzy: Şelte A. , Özkal B.

Identyfikatory

DOI

10.1515/amm-2015-0272

Warianty tytułu

PL

Proces infiltracji porowatych kształtek WC z wykorzystaniem proszku 75% Cu-25 WC wytworzonego metodą mechanicznego stopowania

• Języki publikacji: EN

Abstrakty

EN

In this work infiltration behavior of mechanical alloyed 75 wt% Cu – 25 wt% WC powders into porous WC compacts were studied. Owing to their ductile nature, initial Cu powders were directly added to mechanical alloying batch. On the other hand initial WC powders were high energy milled prior to mechanical alloying. Contact infiltration method was selected for densification and compacts prepared from processed powders were infiltrated into porous WC bodies. After infiltration, samples were characterized via X-Ray diffraction studies and microstructural evaluation of the samples was carried out via scanning electron microscopy observations. Based on the lack of solubility between WC and Cu it was possible to keep fine WC particles in Cu melt since solution reprecipitation controlled densification is hindered. Also microstructural characterizations via scanning electron microscopy confirmed that the transport of fine WC fraction from infiltrant to porous WC skeleton can be carried out via Cu melt flow during infiltration.

Słowa kluczowe

EN

electrical contacts; WC-Cu system; mechanical alloying; contact infiltration

PL

styki elektryczne; powłoka WC-Cu; stopowanie mechaniczne; infiltracja

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1565--1568
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Şelte A.

• Istanbul Technical University, 34469 Maslak, Istanbul, Turkey

autor

Özkal B.

• Istanbul Technical University, 34469 Maslak, Istanbul, Turkey

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