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dc.contributor.authorMohd Asri, Selamat-
dc.contributor.authorS.A., Manaf-
dc.contributor.authorTalib Ria, Jaafar-
dc.date.accessioned2010-01-19T03:47:36Z-
dc.date.available2010-01-19T03:47:36Z-
dc.date.issued2009-12-01-
dc.identifier.citationp.1-5en_US
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/7527-
dc.descriptionOrganized by School of Materials Engineering & Sustainable Engineering Research Cluster, 1st - 2nd December 2009 at Putra Brasmana Hotel, Kuala Perlis, Perlis.en_US
dc.description.abstractThe microstructure and mechanical properties of sintered 94WC-6Co hardmetal powders were investigated. In this work, sub-micron (< 1m) of tungsten carbide (WC), cobalt (Co) and paraffin wax powders were wet mixing in a tubular mixer at a mixing speed of 50 rpm for 3 hr compared with 24 hr in wet milling process. Powder mixtures were uniaxially pressed, cold isostatic pressing (CIPped) and sintered at 1200-1500C for 1 hour in a nitrogen-based atmosphere using liquid phase sintering (LPS) mechanism. The fine WC grain particles (~ 300 nm) were led to uniformity in microstructures at optimum sintering temperatures, 1450C and showed a relative sintered density above 95% of theoretical. The sintered samples obtained higher density, hardness and strength due to their fine microstructures, which are suitable for use in cutting tool application. The tool life of sintered WC-Co cutting tool insert on tool steel workpiece bar also was reported.en_US
dc.language.isoenen_US
dc.publisherUniversiti Malaysia Perlisen_US
dc.relation.ispartofseriesProceedings of the Malaysian Metallurgical Conference '09 (MMC'09)en_US
dc.subjectPowder metallurgyen_US
dc.subjectHardmetalsen_US
dc.subjectCold isostatic pressingen_US
dc.subjectCutting toolen_US
dc.subjectMaterials engineeringen_US
dc.subjectHardmetal powdersen_US
dc.titleMicrostructure, mechanical properties and cutting performance of sintered sub-micron WC-Co hardmetal powderen_US
dc.typeWorking Paperen_US
dc.contributor.urlmasri@sirim.myen_US
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