Friction and Wear Behavior of Thermally Sprayed Al-Cu-Fe Quasicrystal Coatings

1997 ◽  
Author(s):  
S. De Palo ◽  
S. Usmani ◽  
S. Sampath ◽  
D.J. Sordelet ◽  
M. Besser
Keyword(s):  
Sliding Wear ◽  
Friction And Wear ◽  
Tribological Behavior ◽  
Wear Behavior ◽  
Friction And Wear Behavior ◽  
Coating Microstructure ◽  
Plasma Sprayed ◽  
Thermally Sprayed ◽  
Sprayed Coatings ◽  
Wear Tests

Abstract Gas atomized Al63Cu25Fe12 powders of varying size fractions were plasma sprayed to study the relationships between coating microstructure and tribological behavior. After spraying, annealing was performed on one of the coatings. Abrasion and sliding wear tests were performed on the coatings. The results indicate a correlation between the abrasion resistance and hardness of the coatings. Furthermore, sliding wear tests reveal lower coefficients of friction for the as-sprayed coatings compared to the annealed coatings.

On the Lubrication Mechanism of SbSbS4

1982 ◽  
Vol 40 ◽  
pp. 530-531
Author(s):  
J. S. Harris ◽  
L.K. Ives ◽  
M. B. Peterson
Keyword(s):  
Laboratory Test ◽  
Friction And Wear ◽  
Solid Lubricant ◽  
Wear Behavior ◽  
Powder Form ◽  
Extreme Pressure ◽  
Lubrication Mechanism ◽  
Friction And Wear Behavior ◽  
Test Conditions ◽  
Wear Tests

Recent investigations have shown that SbSbS4 is a promising solid lubricant. It exhibits outstanding extreme pressure (EP) performance, and good antiwear behavior under laboratory test conditions. An investigation was undertaken to identify the mechanism by which SbSbS4 functioned when used as a lubricant in the dry powder form and as an additive to oils and greases. Friction and wear behavior of SbSbS^ was investigated using several different wear tests carried out in air at temperatures ranging from 20°C to 500°C.

Friction and Wear Behavior of Electroplated and Thermal Sprayed Coatings Tested in an Instrumented Rubber Wheel Abrasion Test

2007 ◽  
Vol 4 (10) ◽  
pp. 101194 ◽  
Author(s):  
G. Pintaude ◽  
O. Maranho ◽  
L. Villabón R. ◽  
A. Sinatora ◽  
Steven Shaffer ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Wear Behavior ◽  
Friction And Wear Behavior ◽  
Abrasion Test ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

On the Sliding Wear Behavior of PAEK Composites in Vacuum Environment

2019 ◽  
Vol 141 (4) ◽  
Author(s):  
Géraldine Theiler ◽  
A. P. Harsha ◽  
Thomas Gradt
Keyword(s):  
Carbon Fibers ◽  
Sliding Wear ◽  
Friction And Wear ◽  
Vacuum Chamber ◽  
Tribological Behavior ◽  
Wear Behavior ◽  
Low Friction ◽  
Test Conditions ◽  
Aisi 52100 ◽  
Pin On Disk

In the present study, the tribological behavior of polyaryletherketones (PAEKs) and their composites was investigated in air and vacuum environment. Polymer matrices were filled with either glass or carbon fibers and compared with a standard bearing material containing 10% carbon fiber (CF), 10% graphite, and 10% polytetrafluoroethylene (PTFE). The samples were tested in a pin-on-disk configuration under continuous sliding against a rotating steel disk (AISI 52100) at different sliding speeds. The results indicated that the tribological performance of these materials in vacuum depends on both compositions and test conditions. At low sliding speed, a very low friction and wear coefficients were obtained while at higher speed, severe wear occurred. In particular, CF filled composites showed excessive wear that led to the ignition after opening the vacuum chamber. Experimental results are discussed by analyzing the transfer film and wear debris.

Tribological Properties of Self-Lubricating Fluoride-Metal Composites to 900 Deg C (1650 Deg F)—A Review and Some New Developments

1975 ◽  
Vol 97 (3) ◽  
pp. 506-509 ◽  
Author(s):  
H. E. Sliney ◽  
J. W. Graham
Keyword(s):  
Nickel Alloy ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Metal Composites ◽  
New Developments ◽  
Friction And Wear Behavior ◽  
Surface Conditioning ◽  
Plasma Sprayed ◽  
Self Lubricating Composites

This paper summarizes the friction and wear behavior of some fluoride-metal, self-lubricating composites. Fluoride-infiltrated sintered nickel alloy composites and plasma-sprayed, co-deposited fluoride-nickel alloy composites are described. The importance of proper surface-conditioning of the composites is stressed. Performance of fluoride-metal composites in some machine application evaluations is discussed.

Influence of Grain Orientation on Friction and Wear Behavior in Quasicrystalline Alloys

2000 ◽  
Vol 643 ◽  
Author(s):  
Alan Duckham ◽  
Dan Shechtman ◽  
Benjamin Grushko
Keyword(s):  
Grain Orientation ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Icosahedral Phase ◽  
Friction And Wear Behavior ◽  
Decagonal Phase ◽  
Pin On Disc ◽  
Alnico Alloy ◽  
Electron Back Scattered Diffraction ◽  
Wear Tests

AbstractThe influence of grain orientation on the friction and wear behavior of single-phase quasicrystalline alloys is investigated. Pin-on-disc wear tests and friction coefficient measurements have been performed on bulk samples of icosahedral phase AlPdMn and decagonal phase AlNiCo alloys. Wear behavior has been evaluated by optical microscopy, scanning electron microscopy (SEM) and electron back-scattered diffraction (EBSD). Coefficient of friction values of the decagonal AlNiCo alloy are found to be widely scattered (between 0.03 and 0.55) compared to the far more consistent values of the icosahedral alloys. This is explained by considering the significant variation in wear behavior that is observed between different – sometimes adjacent – oriented grains in the decagonal specimens.

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