WC-10％CoCrFeNi硬质合金的磨损与腐蚀性能
Wear and corrosion properties of WC-10％CoCrFeNi cemented carbide
姚庆春 1原一高 1张建国1
作者信息
摘要
为解决WC-Ni硬质合金力学性能与耐腐蚀性能间的矛盾,以CoCrFeNi高熵合金作为黏结相制备了 WC-10％CoCrFeNi硬质合金.利用维氏硬度计、摩擦磨损试验仪、电化学工作站、扫描电子显微镜、X射线衍射仪等,对WC-10％CoCrFeNi与WC-10％Ni硬质合金的磨损与腐蚀性能进行研究比较.结果表明,与WC-10％Ni硬质合金相比,WC-10％CoCrFeNi的硬度和断裂韧性值较高,干摩擦滑动磨损过程中具有较低的摩擦因数和磨损率,在以3.5％NaCl溶液为介质的电化学腐蚀过程中表现出优异的耐腐蚀性能.
Abstract
To solve the conflict between the mechanical properties and corrosion resistance of WC-Ni cemented carbide,WC-10％CoCrFeNi cemented carbide was prepared using CoCrFeNi high-entropy alloy as the bonding phase.A comparative study of the wear and corrosion properties of WC-10％CoCrFeNi and WC-10％Ni cemented carbides was carried out with the aid of Vickers hardness tester,friction and wear tester,electrochemical workstation,scanning electron microscope and X-ray diffractometer.The results show that WC-10％CoCrFeNi has higher hardness and fracture toughness values than those of WC-10％Ni cemented carbides,and has lower friction coefficient and wear rate during dry friction sliding wear,and shows excellent corrosion resistance during electrochemical corrosion with 3.5％NaCl solution as the medium.
关键词
WC-10％CoCrFeNi硬质合金/摩擦磨损/腐蚀/力学性能Key words
WC-10％CoCrFeNi cemented carbide/frictional wear/corrosion/mechanical property引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据