Effects of WC Powder Characteristics on the Properties of YG22 Cemented Carbide AITranslate

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Basic Information:

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Chinese Library Classification Number:TG135.5[一般工业技术—材料科学与工程]

Citation Information:

Different YG22 cemented carbides were prepared with WC powders synthesized by three different methods. Meanwhile,the investigation was made of the effects of WC powder characteristics on WC grain size and its distribution, hardness, bending strength, impact toughness and coercive force of the cemented carbides. The results show that under the conditions of same preparation process and same carbide grain size,well-developed crystalline WC powder with less microstructure defects can prepare better cemented carbide, with more uniform grain size and higher hardness, bending strength and impact toughness than the poorly-developed crystalline WC powder with more microstructure defects. In order to improve the properties of YG22 cemented carbides, the particle size and its distribution, as well as the microstructure development of WC powders should be considered when choosing the raw materials.