Comparative Experimental Study of Tribo-Mechanical Performance of Low-Temperature PVD Based TiN Coated PRCL Systems for Diesel Engine
Table 10
Summary of tribological results trade-offs, the percentage changes in mean COF, and cylinder liner wear rate are calculated in comparison to the PRCL 1 (as is scenario).
PRCL system
Sample ID
Surface Roughness
Coating Thickness
Comparison with mean COF of PRCL 1
Comparison with cylinder liner wear rate of PRCL 1
PRCL 1
Uncoated Cylinder Liner against Cr Coated Piston Ring
1
0.55μm
N/A
N/A
N/A
PRCL 2
TiN Coated Cylinder Liner against TiN Coated Piston Rings
1
Fine sample
1.920μm
95%
3%
2
Rough sample
1.920μm
122%
-32%
3
Fine sample
3.523μm
45%
-23%
4
Rough sample
3.523μm
96%
-44%
5
Fine sample
5.120μm
-47%
-53%
6
Rough sample
5.120μm
-24%
-62%
PRCL 3
TiN Coated Cylinder Liner against Cr Coated Piston Rings