摘要
Three CrN coatings were deposited on the Inconel X750 through the metal vapor vacuum arc ion implantation and the magnetic filtered cathodic vacuum arc deposition system(MEVVA-FCVA) with the N2 flow rates of 10,50,and 100sccm, respectively.The surface morphologies and cross-section morphologies of the CrN coatings were obtained through scanning electron microscopy(SEM) and an optical profilometer.The microstructures of the coatings were characterized through X-ray diffraction(XRD).The hardness and the elastic modulus of the coatings were tested by a nano-hardness tester.The adhesion strength and friction coefficients were investigated through scratch tests and ball-on-disk tests and the wear tracks were tested by the optical profilometer. The experimental results indicate that the CrN coating deposited on the Inconel X750 substrate displays a uniform thickness and a smooth surface. The mechanical properties behaves well as the N2 flow rate varies.The CrN coating significantly reduces the friction coefficient fluctuation and improves the antiadhesion and anti-wear properties of the Inconel X750.
Three CrN coatings were deposited on the Inconel X750 through the metal vapor vacuum arc ion implantation and the magnetic filtered cathodic vacuum arc deposition system（MEVVA-FCVA） with the N2 flow rates of 10, 50, and 100 sccm, respectively. The surface morphologies and cross-section morphologies of the CrN coatings were obtained through scanning electron microscopy（SEM） and an optical profilometer.The microstructures of the coatings were characterized through X-ray diffraction（XRD）. The hardness and the elastic modulus of the coatings were tested by a nano-hardness tester. The adhesion strength and friction coefficients were investigated through scratch tests and ball-on-disk tests and the wear tracks were tested by the optical profilometer. The experimental results indicate that the CrN coating deposited on the Inconel X750 substrate displays a uniform thickness and a smooth surface. The mechanical properties behaves well as the N2 flow rate varies. The CrN coating significantly reduces the friction coefficient fluctuation and improves the antiadhesion and anti-wear properties of the Inconel X750.
作者
LIU Jiliang
LIAO Ridong
刘吉良;廖日东;LIAO Bin;LUO Jun;BAO Ke(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;Beijing Liang Xin Technology Co.,Ltd.,Beijing 100081,China;College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Beijing Radiation Center,Beijing 100875,China;China North Vehicle Research Institute,Beijing 100072,China)
基金
Funded by the Special Plan of Scientific and Technological Innovation for Graduate Student in Beijing Institute of Technology(2015CX10015)
the National Natural Science Foundation of China(51405455)
