In-situ WC ceramic-based composite material prepared by selective laser melting and method thereof

• Main Authors: CHENG LINGYU, LIN KAIJIE, DAI DONGHUA, XIA MUJIAN, LIU ZHENGWU, GUO MENG, GU DONGDONG, WANG LIANFENG, ZHAO WEIGANG
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2018
• Subjects: ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention discloses an in-situ WC ceramic-based composite material prepared by selective laser melting and a method thereof. The in-situ WC ceramic-based composite material is prepared by processing and forming W-Ni-C nano composite powder by means of an SLM forming technology. The in-situ WC ceramic-based composite material is a hard alloy-based composite material which takes a WC tissue or aWC tissue and a Ni2W4 tissue as a structural phase and Ni and W as a sticking phase. When the structural phase is the WC tissue, the sticking phase is distributed around the WC tissue; when the structural phase is the WC tissue and the Ni2W4C tissue, the Ni2W4C tissue is located between the WC tissue and the sticking phase. Therefore, the comprehensive mechanical property of the ceramic-based hard alloy can be improved. 本发明公开了种选区激光熔化制备的原位WC陶瓷基复合材料及其方法，该原位WC陶瓷基复合材料通过SLM成形技术对W-Ni-C纳米复合粉末加工成形；该原位WC陶瓷基复合材料是种以WC组织或者WC组织、NiWC组织作为结构相，以Ni和W作为黏结相的硬质合金基复合材料；所述结构相为WC组织时，粘结相分布在WC组织的四周；所述结构相为WC组织、NiWC组织时，NiWC组织位于WC组织与黏结相之间。因此，本发明