WC-Co超硬合金の性質に及ぼすWC粉末の炭化温度の影響 Some Properties of WC-10mass%Co Cemented Carbide Affected by Carbonizing Temperature of Tungsten Carbide Powders.
Some properties of WC-Co alloy as well as those of WC powder were studied relating to the carbonizing temperature of starting WC powder having the same grain size (2.5μm) . The WC powder carbonized at low temperature (L-WC) appeared to be pulverized more easily, compared with the powder carbonized at high temperature (H-WC). In other words, sintered alloys prepared by using L-WC showed often the micro-structure containing coarse WC grains which anomaly grew, suggesting that H-WC was more stable than L-WC. However, the H-WC seemed to be not necessarily advantageous, considering that the above result was changeable according to manufacturing history of the alloy.
粉体および粉末冶金 46(4), 390-395, 1999-04-15
Japan Society of Powder and Powder Metallurgy