Huazhong University of Science and Technology

Weihao Xiong

Xiao Chen

Zhenhua Yao

Qingqing Yang

Guopeng Zhang

Bin Huang

Mingkun Chen

Shan Chen

Provided are Ti(C,N)-based cermets with NiAl and Ni as binder and a preparation method thereof. The Ti(C,N)-based cermets are prepared by raw materials subjected to ball-mill mixing, die forming, vacuum degreasing and vacuum sintering, wherein weight percentage of each chemical component of the raw materials is as follows: TiC 34.2&#x2dc;43%, TiN 8&#x2dc;15%, Mo 10&#x2dc;15%, WC 5&#x2dc;10%, graphite 0.8&#x2dc;1.0%, Ni 20&#x2dc;24%, and NiAl powder containing B 6&#x2dc;10%. Ni powder and NiAl powder containing B are used as binder. The Ti(C,N)-based cermets feature in excellent corrosion resistance, oxidation resistance and mechanical properties at high temperature, has a hardness of 89.0&#x2dc;91.9 HRA, a room temperature bending strength of 1600 MPa or more, and a fracture toughness of 14 MPa&#xb7;mor more, and is applicable for manufacturing high-speed cutting tools, dies and heat-resisting and corrosion-resisting components.

Ti(C,N)-based cermet with Ni3Al and Ni as binder and preparation method thereof

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Wuhan, China

Weihao Xiong