Mechanical Characterization and Wear Performance of WC-ZrO2-Ni Cermets Produced by Hot Isostatic Pressing

摘要：

Microstructure analysis and mechanical characterization were performed on newly developed WC based and yttria stabilized tetragonal zirconia (ZrO2) doped cermets with nickel metal binder produced by hot isostatic pressing. The cermets have reached higher than 99％ of theoretical density after processing at 1700 0C and 206 MPa for 1 hour. Zirconia has appeared to form agglomerates of about 1 μrn and suppressed carbide grains growth. Hardness of zirconia doped materials was of the same magnitude and fracture toughness was slightly higher as compared to conventionally produced WC-Co hardmetals of the same metal binder content while wear resistance in conditions of erosion and abrasion in silica media is increased by two fold.

关键词： Hot isostatic pressing cermet microstructure mechanical properties erosion abrasion

作者: Irina Hussainova Anton Smirnov Maksim Antonov

作者单位: Department of Materials Engineering,Tallinn University of Technology,Ehitajate tee 5,Tallinn 19086,Estonia

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 344-348

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）