• Login
    View Item 
    •   DSpace Home
    • The Library
    • Conference Papers
    • View Item
    •   DSpace Home
    • The Library
    • Conference Papers
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Microstructure, mechanical properties and cutting performance of sintered sub-micron WC-Co hardmetal powder

    Thumbnail
    View/Open
    Access is limited to UniMAP community. (204.5Kb)
    Abstract.pdf (7.118Kb)
    Date
    2009-12-01
    Author
    Mohd Asri, Selamat
    S.A., Manaf
    Talib Ria, Jaafar
    Metadata
    Show full item record
    Abstract
    The 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.
    URI
    http://dspace.unimap.edu.my/123456789/7527
    Collections
    • Conference Papers [2599]

    Atmire NV

    Perpustakaan Tuanku Syed Faizuddin Putra (PTSFP) | Send Feedback
     

     

    Browse

    All of UniMAP Library Digital RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Atmire NV

    Perpustakaan Tuanku Syed Faizuddin Putra (PTSFP) | Send Feedback