Comparison between ultrafine grained WC-Co and WC-HEA cemented carbides
The AIFeCoNiCrTi high-entropy alloy (HEA) powders were prepared by high-energy ball milling.The ultrafine grained WC-HEA and WC-Co cemented carbides were fabricated through planetary ball milling and heat-pressure sintering.The microstructures and properties of the sintered alloys were compared using scanning electron microscope (SEM), X-ray diffraction (XRD), mechanical property testing and electrochemical testing.It has been shown that the AIFeCoNiCrTi high-entropy alloy can be used as binder for the ultrafine grained WC-based cemented carbide.The WC-HEA cemented carbide has better performances than the WC-Co cemented carbide.The suitable contentsof HEA can inhibit the WC grain growth and improve the mechanical properties and corrosion resistance of cemented carbides.
Ultrafine grained cemented carbide High-entropy alloys Microstructure Mechanical properties Corrosion resistance
Pengfei Zhou Daihong Xiao Tiechui Yuan
State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China
国内会议
长沙
英文
71-77
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）