WEAR-RESISTANT COATINGS of Diesel Cylinder Liners

1941 ◽  
Author(s):  
J. E. Jackson
2021 ◽  
Vol 316 ◽  
pp. 770-776
Author(s):  
Valery Alisin ◽  
Mikhail Roshchin

The authors thereof have developed a technology for application of wear-resistant coatings to protect against wear. The research team tested how efficiently powdered material could be heated in a plasma jet. They studied the physical and mechanical properties of coatings by kinetic micro-indentation and tested the plasma sprays for wear resistance. Tribological laboratory tests used the roller-on-roller method. Thus, WC/Co/Cr coatings had the most stable tribological properties and were more wear-resistant, compared to other tested coatings. Cylinder liners of heavy-duty diesel engines were enhanced by this technology. The pilot batch showed promise, as it might triple effectively the service life of diesel engines.


2011 ◽  
Vol 189-193 ◽  
pp. 3633-3639
Author(s):  
Ming Der Jean ◽  
Yih Hwang Yang ◽  
Tzu Hsuan Chien

This study presented the desirability function based on Taguchi designed experiments to solve multiple responses statistical optimal problems for the tungsten carbide/cobalt (WC-Co) coatings of high-velocity-oxygen-fuel (HVOF) processes. The eight control factors based on L18 arrays were conducted and the multi-responses of wear-resistant coatings such as hardness, deposited thickness and wear rate were evaluated simultaneously in the desirability-based experiments. Based on desirability analysis, the optimal settings have been identified, and the impacts of control factors are determined by analysis of variance on the multi-responses. Further, a confirmation run was conducted to validate the tests. Experimental results have shown that the hardness increased by 16.61% and the deposited thickness improved by 10.50%, while the wear rate decreased by 34.03%. It was clear that confirmation tests are greatly improved by way of the desirability-based multi-responses on HVOF WC-Co experiments, and these findings achieved the desired values on wear-resistant coatings. The proposed procedure was applied at HVOF sprayed WC-Co experiments, and the implementation results demonstrated its feasibility and effectiveness to maximize hardness, make a target of deposited thickness value and minimize wear rate by a HVOF.


1990 ◽  
Vol 26 (9) ◽  
pp. 479-482
Author(s):  
E. E. Aver'yanov ◽  
R. M. Galimzyanov ◽  
K. Z. Gilyazova ◽  
V. A. Popov ◽  
A. V. Rabinovich ◽  
...  

1994 ◽  
Vol 30 (2) ◽  
pp. 340-345 ◽  
Author(s):  
V. Zieren ◽  
M. de Jongh ◽  
A.B. van Groenou ◽  
J.B.A. van Zon ◽  
P. Lasinski ◽  
...  

2010 ◽  
Vol 30 (9) ◽  
pp. 910-920 ◽  
Author(s):  
F. V. Kiryukhantsev-Korneev ◽  
N. A. Shirmanov ◽  
A. N. Sheveiko ◽  
E. A. Levashov ◽  
M. I. Petrzhik ◽  
...  

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