Effect of tribological process parameters on the wear and frictional behaviour of Cr-(CrN/TiN) composite coating: An experimental and analytical study

2021 ◽  
Vol 47 (11) ◽  
pp. 16018-16028
Author(s):  
Sunil Kumar ◽  
Saikat Ranjan Maity ◽  
Lokeswar Patnaik
2020 ◽  
Vol 34 (27) ◽  
pp. 2050243
Author(s):  
Hui Fan ◽  
Jie Jiang ◽  
Yangpei Zhao ◽  
Shankui Wang ◽  
Zhijing Li

Ni–Al2O3 composite coatings were prepared with a modified Watt’s bath by using jet electrodeposition method. As the key process parameter, current density and the addition of Al2O3 nanoparticles in electrolyte were studied about the effect on the surface morphology and co-deposition of Al2O3 nanoparticles of composite coating. The mechanical and tribological properties of the composite coating were also tested. The results show that properly increasing the current density and Al2O3 addition can increase the co-deposition of nanoparticles in the coating and promote the formation of a dense and refined coating structure. Using the optimized process parameters of current density (300 A/dm2) and Al2O3 addition (30 g/L), the co-deposition of Al2O3 in the composite coating can reach a maximum of 13.1 at.%. The hardness of the coating reaches the peak at 623 HV. The wear rate of the composite coating is also greatly reduced with optimized parameters.


2012 ◽  
Vol 161 ◽  
pp. 269-273
Author(s):  
Yu Mei Bao ◽  
Lei Wu ◽  
Li Jie Weng

Preparation and mechanical property measurement methods of bioceramic coating are introduced. HA/ZrO2 composite coating was prepared in the titanium alloy substrate with Plasma spraying equipment, and its bonding strength was measured. The influence of process parameters on bonding strength of plasma-sprayed HA/ZrO2 composite coating is simulated with computing software Mathematica and optimized.


2008 ◽  
Vol 254 (8) ◽  
pp. 2269-2275 ◽  
Author(s):  
Sumin Shin ◽  
Yuming Xiong ◽  
Youlgwun Ji ◽  
Hyung Jun Kim ◽  
Changhee Lee

Author(s):  
YP Vaishnu ◽  
K Bindu Kumar ◽  
S Rani

The development of deposition of different metal processes established on electrodeposition of nickel, different alloy and composite coatings on different surfaces has attested an upsurge in interest among researchers. In latter years, these coatings have exhibited promising corrosion and wear resistance properties. Also, huge number of modern developments became most critical from macro to nano level applications. It is well known that one may shape the microstructure and the phase present in the material to recover the mechanical properties of highly pure materials, specifically metals. Co-deposition of fine particles inside a metal matrix to generate composite coatings has treated as a practical strategy to acquire enhanced mechanical properties like wear resistance, corrosion resistance and lubrication. In this work, CuO/Ni composite coatings are processed on the small cylindrical pin by electro brush plating to evaluate the wear and corrosion resistance. To examine the effects about the different parameters of processes on wear loss of CuO/Ni composite coating, L16(44) orthogonal experiment is designed and conducted with four process parameters (voltage, concentration of nanoCuO particles in g/l, temperature and thickness) which are selected as factors. Design of experiment is employed to resolve the effects of process parameters on the wear loss of composite coatings. It is concluded that concentration of CuO nanoparticle and voltage are the most significant factors for the wear loss.


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