Research Progress of the Second Phase Composition Modified Cemented Carbides AITranslate

5刘文龙,董青岭.区块链问责:国际非政府组织的治理创新[J].复印报刊资料（国际政治）,2023(11):106-115.

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

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The research progress of the second phase composition modified cemented carbides was systema-tically discussed,the modification mechanism,types of modifiers,and mechanical properties of WC-based cemented carbides modified by adding the second phase elements or compounds were introduced,and the improvement mechanism of mechanical properties of the cemented carbide by doping second phase was analyzed and summarized.The effect of modifying cemented carbides with different types and contents of additives is different.The effects of different additives and preparation methods on the mechanical properties of cemented carbides were classified and compared.The results show that the comprehensive mechanical properties of cemented carbides are mainly related to the degree of grain refinement and micro-interface structure.The added second phase can form a certain coordination structure with the WC matrix,effectively inhibit the growth of WC grains,and thus improve the performance of the alloy.Finally,the current development bottlenecks and unresolved issues of the second phase composition modified cemented carbides are summarized.