The Study of Co-Doped NbC / Cr3C2 on the Application of Ultrafine WC-10%Co Cemented Carbides
2013 ◽
Vol 320
◽
pp. 320-324
Keyword(s):
In this paper, ultrafine WC-10%Co cemented carbides were prepared by vacuum sintering. For inhibition of growth of WC grains during sintering, NbC and Cr3C2 were used as inhibitors. With the transformation of co-doped inhibitors content, the grain growth is inhibited and the grain size achieves 490 nm at 0.4% Cr3C2 / 0.3% NbC. The mechanism that co-doped NbC / Cr3C2 on the effective reduction of ultrafine WC-10%Co cemented carbides was analyzed. The 0.4% Cr3C2 / 0.3% NbC addition equipped with the best integrated mechanical properties was obtained in this study. And sintered samples were investigated with scanning and transmission electron microscopy (SEM).
2014 ◽
Vol 602-605
◽
pp. 420-423
Keyword(s):
1974 ◽
Vol 32
◽
pp. 514-515
2013 ◽
Vol 591
◽
pp. 245-248
◽
2011 ◽
Vol 311-313
◽
pp. 1044-1048