Friction and Wear Behavior of Moglice Polymer Composite through Dry Sliding Ball-on-Flat Reciprocating Test

2015 ◽  
Vol 808 ◽  
pp. 137-142 ◽  
Author(s):  
Virgil Iliuţă ◽  
Minodora Rîpă ◽  
Adriana Preda ◽  
Gabriel Andrei
Keyword(s):  
Dry Friction ◽  
Friction And Wear ◽  
Room Temperature ◽  
Wear Behavior ◽  
Wear Properties ◽  
Molybdenum Disulphide ◽  
Friction And Wear Behavior ◽  
Metal Parts ◽  
Friction And Wear Properties ◽  
Sliding Distance

This paper presents an experimental evaluation of friction and wear properties of a composite material-moglice - made by Diamant Metallplastic GmbH company, from Germany. This material is a polymeric matrix reinforced with particles of cristobalite (αSiO2) and molybdenum disulphide (MoS2). The material is recommended by the manufacturer for repairing metal parts. This material was tribologically tested in dry friction conditions, on a ball on flat configuration, using the reciprocating method, on a CETR UMT-2 tribometer (Bruker Corporation). The counterpart was a steel ball. The tests were performed at room temperature in normal conditions of relative humidity of 40-60% using an average sliding speed of 3.5 mm/s. The tests were carried out at normal loads of 20, 30, 40 and 50N over a sliding distance of 100 m. The wear traces obtained were optically examined with μSCAN laser profilometer (NANOFOCUS).

Friction and Wear Properties of SiC and Immerse the Copper Graphite Against 1Cr18Ni9Ti Friction Couples

2010 ◽  
Vol 146-147 ◽  
pp. 1138-1141
Author(s):  
Xiao Tian ◽  
Li De Fang ◽  
Yan Zhu
Keyword(s):  
Friction And Wear ◽  
Room Temperature ◽  
Wear Behavior ◽  
Normal Load ◽  
Volume Loss ◽  
Wear Properties ◽  
Friction And Wear Behavior ◽  
Graphite Matrix ◽  
Low Load ◽  
Friction And Wear Properties

Friction and wear properties of SiC and immerse copper graphite(C/Cu) against stainless steel (1Cr18Ni9Ti) friction couples were studied under room temperature and unlubrication by pin-disc tribometer. The test shows that at sliding speed of 0.56ms-1 and normal load of 5N, 20N, the SiC/1Cr18Ni9Ti friction coefficient decreases. The immerse copper graphite shows good friction and wear behavior at load 50N, at which the copper of graphite matrix is transported to the surface from the pore of graphite matrix to form a couple of copper and copper. It is difficulties to measure volume loss. When load increased, the copper was transported to generate the film and was grinded away continuously, which the immerse copper graphite(C/Cu) volume loss increases at load 120N. The results of comparing two couples show volume loss of the couple SiC/1Cr18Ni9Ti is severe, so it is not suitable to combine a couple. The couple of immerse copper graphite (C/Cu)/1Cr18Ni9Ti is better applied at low load.

Effect of Humidity on the Friction and Wear Properties of Sn

1995 ◽  
Vol 117 (4) ◽  
pp. 737-741 ◽  
Author(s):  
Y. Imada ◽  
K. Nakajima
Keyword(s):  
Relative Humidity ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Disk Surface ◽  
Wear Loss ◽  
Wear Properties ◽  
Friction And Wear Behavior ◽  
Low Humidity ◽  
Friction And Wear Properties ◽  
Pin On Disk

Variation in friction and wear properties with relative humidity was obtained with an Sn pin sample on a Cu disk at a constant speed (0.4 m/s), load (6.4 N), and sliding distance (5 km), using a pin-on-disk apparatus. The influence of atmosphere on the tribological properties was investigated, including moisture ranging from 4% to 95 percent relative humidity (RH). It was found that the wear loss of the pin sample is very large at low humidity of around 5 percent RH, but it decreases and reaches saturation at about 50 percent RH. Factors characterizing the friction and wear at 50 percent RH were examined along with surface analysis of the disk. The results showed that the extensive transfer of Sn from pin to disk occurs during sliding and that the friction and wear behavior is determined by the friction and wear of an Sn sliding on Sn. An examination was carried out with an Sn pin sample on a stainless steel disk in comparison with an Sn-Cu couple. It was concluded that the friction and wear behavior is determined by the properties of the film transferred to the disk surface.

Comparative Study of Friction and Wear Behavior of Diamond-Like Carbon Coating under the Lubrication of PAGs Containing Various Additives

2011 ◽  
Vol 130-134 ◽  
pp. 2754-2757
Author(s):  
Hao Wu ◽  
Yan Qiu Xia ◽  
Xin Feng ◽  
Xiang Yu Ge
Keyword(s):  
Tribological Properties ◽  
Carbon Coating ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Wear Properties ◽  
Dlc Coatings ◽  
Friction And Wear Behavior ◽  
Friction And Wear Properties ◽  
Scanning Electron ◽  
Reducing Properties

The friction and wear properties of the DLC coatings were evaluated while being lubricated with pure PAG, PAG containing PN and ZDDP using reciprocating ball-on-disk sliding UMT tester, respectively. The morphologies of the worn surfaces of the DLC coatings were observed using a scanning electron microscope (SEM). The results indicated that the DLC coatings exhibited better tribological properties under the lubrication of PAG containing PN or ZDDP than that of pure PAG. In addition, PN and ZDDP as additives show different tribological properties. The former offers better anti-wear ability, the latter offers better friction-reducing properties.

STUDY ON FRICTION AND WEAR PROPERTIES OF SILVER MATRIX BRUSH MATERIAL WITH DIFFERENT ADDITIVES

2013 ◽  
Vol 27 (19) ◽  
pp. 1341037
Author(s):  
XIAOLI CHEN ◽  
WENFANG WANG ◽  
YU HONG ◽  
YUCHENG WU
Keyword(s):  
Friction And Wear ◽  
Wear Behavior ◽  
Friction Pair ◽  
Critical Value ◽  
Wear Loss ◽  
Wear Properties ◽  
Friction And Wear Behavior ◽  
Comprehensive Performance ◽  
Silver Matrix ◽  
Friction And Wear Properties

Friction and wear processes of AgCuX ( G , CF and AlN ) composites- CuAgV alloy friction pair and effects of different additive content in silver based composite on friction and wear behavior are studied in this paper. The microstructure of the brush wear surface is observed by SEM. The results show that when graphite content is up to 9 wt.%, Ag - Cu - CF - G composite exhibits the best wear properties; when the content of aluminum nitride is up to 0.5 wt.%, Ag - Cu - AlN - G composites has the most comprehensive performance. The wear loss of both composites arises with the increase of both pressure and speed, but when speed reaches a critical value, the increased amplitude of wear loss tends to be steady.

Tribological properties of the epoxy resin-based solid lubricant coating modified by Kevlar fibers

2018 ◽  
Vol 70 (9) ◽  
pp. 1706-1713 ◽  
Author(s):  
Guotao Zhang ◽  
Yanguo Yin ◽  
Ting Xie ◽  
Dan Li ◽  
Ming Xu ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Epoxy Resin ◽  
Tribological Properties ◽  
Dry Friction ◽  
Friction And Wear ◽  
Solid Lubricant ◽  
Transfer Film ◽  
Wear Properties ◽  
Content Type ◽  
Friction And Wear Properties

Purpose This paper aims to obtain high mechanical and good tribological properties of epoxy resin-based coatings under dry friction conditions. Design/methodology/approach Bonded solid lubricant coatings containing Kevlar fibres were prepared by a spraying method. The friction and wear properties of the coatings were experimentally investigated with a face-to-face tribometre under dry friction conditions. Scanning electron microscopy, energy dispersive X-ray spectroscopy and 3D laser scanning technologies were used to characterise the tribological properties. The action mechanism of the Kevlar fibres on a solid lubricant transfer film was also analysed. Findings Adding Kevlar fibres can significantly improve the wear resistance of the coatings. When the Kevlar fibre content increases, the tribological properties of the coatings improve and then worsen. Superior properties are obtained with 0.03 g of Kevlar fibres. Appropriately increasing the load or speed is beneficial to the removal of the outer epoxy resin and the formation of a lubricant film. During friction, the solid lubricants wrapped in the epoxy resin accumulate on the surface to form a transfer film that shows a good self-lubricating performance. In the later friction stage, fatigue cracks occur on the solid lubricant film but cannot connect to one another because of the high wear resistance and the entanglement of the rod-like Kevlar fibres. Thus, no large-area film falls from the matrix, thereby ensuring the long-term functioning of solid lubricant coatings. Originality/value Epoxy resin-based solid lubricant coatings modified by Kevlar fibres were prepared, and their friction and wear properties were investigated. Their tribological mechanisms were also proposed. This work provided a basis for the analysis of the tribological properties and design of bonded solid lubricant coatings containing Kevlar fibres.

The Friction and Wear of Thin, Sintered, Fluoride Films

1972 ◽  
Vol 94 (1) ◽  
pp. 12-18 ◽  
Author(s):  
M. T. Lavik ◽  
B. D. McConnell ◽  
G. David Moore
Keyword(s):  
Friction Coefficient ◽  
Friction And Wear ◽  
Room Temperature ◽  
Wear Behavior ◽  
Strong Dependence ◽  
Aluminum Phosphate ◽  
Friction And Wear Behavior ◽  
Wear Life ◽  
Compositional Changes ◽  
Cure Temperature

Results are presented for the bonding of thin, sintered, fluoride films of BaF2 and CaF2 with mono-aluminum phosphate. Friction and wear behavior of these films has been defined in terms of film compositional changes, film curing procedures, and substrate variations when subjected to varying levels of temperature and load. Mono-aluminum phosphate was found to greatly enhance the adhesion of the sintered fluoride film. There was a strong dependence of wear life at 1000 deg F on the mono-aluminum phosphate content of the film. Films containing 6 vol. percent phosphate appear to be near optimum and exhibited wear lives of 1,000,000 load cycles under sliding conditions in a dual rub-shoe device with friction coefficient levels in the order of 0.10 to 0.20. Near-optimum values were determined for cure temperature (950 deg C), and surface finish (23 μ in. rms) on rhodium-plated substrates. Graphite and gold were added to the aluminum phosphate bonded BaF2: CaF2 films. Both additives were found to lower the friction coefficient at room temperature.

Hydrogen-Induced Wear of Ti–6Al–4V Alloy

2012 ◽  
Vol 476-478 ◽  
pp. 566-569
Author(s):  
Bao Guo Yuan ◽  
Hai Ping Yu ◽  
Ping Li ◽  
Gui Hua Xu ◽  
Chun Feng Li ◽  
...  
Keyword(s):  
Wear Mechanism ◽  
Chemical Element ◽  
Friction And Wear ◽  
Room Temperature ◽  
Sliding Friction ◽  
Wear Properties ◽  
Friction And Wear Properties ◽  
Worn Surface ◽  
Wear Tests ◽  
Friction And Wear Tests

The effects of hydrogen on friction and wear properties of Ti–6Al–4V alloy sliding against GCr15 steel were investigated through dry sliding friction and wear tests in atmosphere at room temperature. Wear mechanism was determined by studying the morphology and chemical element of worn surface using SEM and EDS. Results show that friction coefficient decreases slightly and wear rate increases after hydrogenation. Wear mechanism is discussed.

Dry friction and wear behavior of in-situ Al/Al3Ti composite

2013 ◽  
Vol 48 (9) ◽  
pp. 1049-1059 ◽  
Author(s):  
A Habibolahzadeh ◽  
A Hassani ◽  
E Bagherpour ◽  
M Taheri
Keyword(s):  
Dry Friction ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Friction And Wear Behavior

scholarly journals Dry Friction and Wear Behavior of Forged Co–29Cr–6Mo Alloy without Ni and C Additions for Implant Applications

2005 ◽  
Vol 46 (7) ◽  
pp. 1578-1587 ◽  
Author(s):  
Kazushige Kumagai ◽  
Naoyuki Nomura ◽  
Tsukasa Ono ◽  
Masahiro Hotta ◽  
Akihiko Chiba
Keyword(s):  
Dry Friction ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Friction And Wear Behavior
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