The Wear Mechanism of Piston Rings and Cylinder Liners Under Cooled-EGR Condition and the Development of Surface Treatment Technology for Effective Wear Reduction

2005 ◽  
Author(s):  
Takashi Takakura ◽  
Yoshiki Ishikawa ◽  
Kosuke Ito
Keyword(s):  
Surface Treatment ◽  
Wear Mechanism ◽  
Piston Rings ◽  
Treatment Technology ◽  
Wear Reduction ◽  
Cylinder Liners

scholarly journals Composite Layers “MgAl Intermetalic Layer / PVD Coating” Obtained On The AZ91D Magnesium Alloy By Different Hybrid Surface Treatment Methods

2015 ◽  
Vol 60 (2) ◽  
pp. 1031-1035 ◽  
Author(s):  
J. Smolik ◽  
A. Mazurkiewicz ◽  
J. Kacprzyńska-Gołacka ◽  
M. Rydzewski ◽  
M. Szota ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Magnesium Alloys ◽  
Surface Engineering ◽  
Composite Layer ◽  
Electron Beam Evaporation ◽  
Treatment Technology ◽  
Corrosion Properties ◽  
Pvd Coating ◽  
Composite Layers ◽  
Coating Composite

Abstract Magnesium alloys have very interesting physical properties which make them ‘materials of the future’ for tools and machine components in many industry areas. However, very low corrosion and tribological resistance of magnesium alloys hampers the implementation of this material in the industry. One of the methods to improve the properties of magnesium alloys is the application of the solutions of surface engineering like hybrid technologies. In this paper, the authors compare the tribological and corrosion properties of two types of “MgAlitermetalic / PVD coating” composite layers obtained by two different hybrid surface treatment technologies. In the first configuration, the “MgAlitermetalic / PVD coating” composite layer was obtained by multisource hybrid surface treatment technology combining magnetron sputtering (MS), arc evaporation (AE) and vacuum heating methods. The second type of a composite layer was prepared using a hybrid technology combined with a diffusion treatment process in Al-powder and the electron beam evaporation (EB) method. The authors conclude, that even though the application of „MgAlitermetalic / PVD coating” composite layers can be an effective solution to increase the abrasive wear resistance of magnesium alloys, it is not a good solution to increase its corrosion resistance.

scholarly journals Wear of different material pairings for the cylinder liner – piston ring contact

2018 ◽  
Vol 70 (4) ◽  
pp. 687-699 ◽  
Author(s):  
Thomas Wopelka ◽  
Ulrike Cihak-Bayr ◽  
Claudia Lenauer ◽  
Ferenc Ditrói ◽  
Sándor Takács ◽  
...  
Keyword(s):  
Steady State ◽  
Wear Mechanisms ◽  
Piston Ring ◽  
Cylinder Liner ◽  
Wear Behaviour ◽  
Special Focus ◽  
Intermediate Step ◽  
Piston Rings ◽  
Content Type ◽  
Cylinder Liners

Purpose This paper aims to investigate the wear behaviour of different materials for cylinder liners and piston rings in a linear reciprocating tribometer with special focus on the wear of the cylinder liner in the boundary lubrication regime. Design/methodology/approach Conventional nitrided steel, as well as diamond-like carbon and chromium nitride-coated piston rings, were tested against cast iron, AlSi and Fe-coated AlSi cylinder liners. The experiments were carried out with samples produced from original engine parts to have the original surface topography available. Radioactive tracer isotopes were used to measure cylinder liner wear continuously, enabling separation of running-in and steady-state wear. Findings A ranking of the material pairings with respect to wear behaviour of the cylinder liner was found. Post-test inspection of the cylinder samples by scanning electron microscopy (SEM) revealed differences in the wear mechanisms for the different material combinations. The results show that the running-in and steady-state wear of the liners can be reduced by choosing the appropriate material for the piston ring. Originality/value The use of original engine parts in a closely controlled tribometer environment under realistic loading conditions, in conjunction with continuous and highly sensitive wear measurement methods and a detailed SEM analysis of the wear mechanisms, forms an intermediate step between engine testing and laboratory environment testing.

Dry Surface Treatment Technology for the Design of the Anode Side of the Metal Support Solid Oxide Fuel Cell (MS-SOFC)

2021 ◽  
Vol MA2021-03 (1) ◽  
pp. 249-249
Author(s):  
Xiaolei Ye ◽  
Huan Luo ◽  
Pierre Bertrand ◽  
Alain Billard ◽  
Pascal Briois
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Surface Treatment ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Side ◽  
Treatment Technology ◽  
Metal Support

Research of the Surface Treatment Process of Bonded NdFeB Magnet with Composite Powder Electrostatic Spraying

2018 ◽  
Vol 278 ◽  
pp. 63-71 ◽  
Author(s):  
Kai Ye Xiao ◽  
Hai Xu ◽  
Zhi Wei Guo ◽  
Wen Zheng
Keyword(s):  
Corrosion Resistance ◽  
Surface Treatment ◽  
Surface Coating ◽  
Composite Powder ◽  
Treatment Process ◽  
Ndfeb Magnet ◽  
Treatment Technology ◽  
Electrostatic Spraying ◽  
Strong Adhesion ◽  
Epoxy Paint

Compared with the traditional air spraying technique and electroplate method, the coating defects of bonded NdFeB magnet, such as the workpiece hanging point, the pinhole, the bubble, have been solved by using the composite powder electrostatic spraying as surface treatment technology, along with the EE epoxy paint as primer coating and PU polyurethane paint as surface coating. The coating of this composite powder electrostatic spraying is uniform and compact, and the coating has strong adhesion and corrosion resistance. This paper gives a detailed introduction to the composite powder electrostatic spraying, including the choice of some important parameters and the unique hanging tools of composite powder electrostatic spraying.

scholarly journals Surface Treatment Technology of Metals and Alloys

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1134 ◽  
Author(s):  
Rokosz
Keyword(s):  
Surface Treatment ◽  
Surface Properties ◽  
Metals And Alloys ◽  
Treatment Technology ◽  
Modified Surface

In recent decades, metals and new alloys with modified surface properties have experienced steady development [...]

Extending ellipsometry capabilities for ultrathin gate oxide metrology using rapid optical surface treatment technology

1999 ◽  
Author(s):  
Francois Tardif ◽  
Adrien Danel ◽  
Emil Kamieniecki ◽  
James Harrington
Keyword(s):  
Surface Treatment ◽  
Gate Oxide ◽  
Optical Surface ◽  
Treatment Technology
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