Water-based nanosuspensions: Formulation, tribological property, lubrication mechanism, and applications

2021 ◽  
Vol 71 ◽  
pp. 625-644
Author(s):  
Shuiquan Huang ◽  
Hui Wu ◽  
Zhengyi Jiang ◽  
Han Huang
Keyword(s):  
Tribological Property ◽  
Lubrication Mechanism ◽  
Water Based

scholarly journals Performance Evaluation and Lubrication Mechanism of Water-Based Nanolubricants Containing Nano-TiO2 in Hot Steel Rolling

Lubricants ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 57 ◽  
Author(s):  
Hui Wu ◽  
Jingwei Zhao ◽  
Liang Luo ◽  
Shuiquan Huang ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Lubrication Mechanism ◽  
Nano Tio2 ◽  
Steel Rolling ◽  
Water Based

Lubrication Mechanism of Nanoparticles in Metal Hot Deformation

2014 ◽  
Vol 809-810 ◽  
pp. 31-38
Author(s):  
Tai Long Niu ◽  
Jian Lin Sun ◽  
Ya Dan Wang ◽  
Zuo Xin Zhu ◽  
Yan Li
Keyword(s):  
Surface Morphology ◽  
Hot Deformation ◽  
Metal Surfaces ◽  
Load Capacity ◽  
Extreme Pressure ◽  
Lubrication Mechanism ◽  
Water Based ◽  
Metal Deformation ◽  
Lubrication Conditions ◽  
Lubricating Mechanism

Effect of nanoparticles to improve the lubrication load capacity and resistance to extreme pressure of water-based rolling liquid was studied by four-ball tester. Compression experiments were conducted in different lubrication conditions with nanoparticles using Gleeble hot compression simulation machine. Then the residual nanoparticles characteristics and the surface morphology of the compressed sample were analyzed by SEM and EDS. The results show that water-based nanoTiO2lubricant can efficiently reduce the friction during metal deformation. nanoZnO is preferred to adhere to metal surfaces and employed to isolate the surfaces. A new lubricating mechanism of nanoparticles in metal hot deformation named convex peak extreme pressure buffering mechanism is thereby proposed, which is verified by the surface morphology of compressed sample.

Preparation and Tribological Property of Plasma Sprayed Adaptive Ni-Mo-Al-Ag-BN Composite Coating

2017 ◽  
Vol 739 ◽  
pp. 30-35
Author(s):  
Jian Liang Li ◽  
Hang Li ◽  
Dang Sheng Xiong ◽  
Yu Juan Ji ◽  
Yong Kun Qin
Keyword(s):  
High Temperature ◽  
Composite Coating ◽  
Tribological Property ◽  
Lubrication Mechanism ◽  
Wear Rates ◽  
Mechanism Model ◽  
Wide Range ◽  
Plasma Sprayed ◽  
Scanning Electron ◽  
Lubrication Mechanisms

In this paper an adaptive Ni-Mo-Al-Ag-BN composite coating was deposited by plasmaspraying. Its tribological property from 20°C-600°C were evaluated by using high temperature tribometer. Scanning electron microscopy and Raman spectroscopy were used to characterize the coating and corresponding wear tracks to determine the lubrication mechanisms. The result shows that the friction coefficient of the Ni-Mo-Al–Ag-BN composite coating from 200°C to 400°C is about 0.4 and declines very slightly at 600°C . The wear rates of the coating is 2.0×10-4mm3/N*m at 600°C and the downward trend is obvious compared with 400°C. Silver provide lubrication below 400 °C. Ag2MoO4 were formed with the temperature raised, and acted as high-temperature lubricants above 400 °C. Ni-Mo-Al–Ag-BN composite coating established a new lubrication mechanism model at 600°C . It can be concluded that the plasma sprayed Ni-Mo-Al - Ag - BN composite coating can keep good tribological property at wide range of temperature.

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