中国材料进展
中國材料進展
중국재료진전
MATERIALS CHINA
2012年
4期
39-46
,共8页
超细晶%硬质合金%碳化钨%钴粉%球形度
超細晶%硬質閤金%碳化鎢%鈷粉%毬形度
초세정%경질합금%탄화오%고분%구형도
uhrafine crystal%cemented carbide%tungsten carbide%cobalt powder%sphericity
超细晶硬质合金是WC晶粒度≤0．5μm的硬质合金，这类合金具有高强度和高硬度的优异性能。目前由超细晶硬质合金制备的高效刀具已经广泛用于航空航天、核能、汽车、发电设备、新能源和电子通讯等现代制造业。主要对中国超细晶硬质合金原料（例如超细碳化钨粉、钴粉、复合粉）和超细晶硬质合金制备技术、性能及表征方法作了系统的阐述。最后对超细晶硬质合金制备技术进行了展望。
超細晶硬質閤金是WC晶粒度≤0．5μm的硬質閤金，這類閤金具有高彊度和高硬度的優異性能。目前由超細晶硬質閤金製備的高效刀具已經廣汎用于航空航天、覈能、汽車、髮電設備、新能源和電子通訊等現代製造業。主要對中國超細晶硬質閤金原料（例如超細碳化鎢粉、鈷粉、複閤粉）和超細晶硬質閤金製備技術、性能及錶徵方法作瞭繫統的闡述。最後對超細晶硬質閤金製備技術進行瞭展望。
초세정경질합금시WC정립도≤0．5μm적경질합금，저류합금구유고강도화고경도적우이성능。목전유초세정경질합금제비적고효도구이경엄범용우항공항천、핵능、기차、발전설비、신능원화전자통신등현대제조업。주요대중국초세정경질합금원료（례여초세탄화오분、고분、복합분）화초세정경질합금제비기술、성능급표정방법작료계통적천술。최후대초세정경질합금제비기술진행료전망。
The sintered WC-Co with uhrafine grain sizes （ 〈 0. 5 rim） is called ultrafine cemented carbide, which pos- sesses optimized properties such as hardness and strength. Efficient tools prepared by uhrafine cemented carbides have been used in aerospace, nuclear energy, automotive, generating equipment, new energy and other fields of electronic communications. The development of uhrafine cemented carbides and raw materials was systematically introduced and reviewed, mainly in aspects of the preparation, property and characterization of uhrafine tungsten carbide powder, ultrafine cobalt powder, WC-Co composite powder and ultrafine cemented carbides in China. Prospects on technology of the ultra-fine cemented carbide were discussed finally.
