Effect of carbon content on matching of key crystal planes in nanocrystalline cemented carbide
Abstract
The carbon content was adjusted in the raw materials used to synthesize the WC-Co composite powder by in situ reactions. It was found that in the sintered nanocrystalline cemented carbide bulk, the matching of key planes (0001), (10−10) and (10−11) was influenced by the carbon content. The matching relationship plays an important role in the mechanical properties of the bulk material along certain directions. At an optimized carbon content of 16.09 wt% for the WC-6Co cemented carbide, both high hardness (2130 kg mm−2) and high toughness (11.8 MPa m1/2) were achieved simultaneously.
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