scholarly journals Friction and Wear Behaviour of Composite Materials Containing Organic Components

2017 ◽  
Vol 54 (2) ◽  
pp. 269-273 ◽  
Author(s):  
Ana Socalici ◽  
Erika Ardelean ◽  
Liviu Pascu ◽  
Vasile Putan
Keyword(s):  
Composite Material ◽  
Cast Iron ◽  
Composite Materials ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Operating Regime ◽  
Rolling Stock ◽  
Wear Behaviour ◽  
Future Research ◽  
Organic Components

The paper presents the experiments performed in the laboratory and the results obtained on friction and wear behaviour of the composite materials for the manufacture of brake shoes used for driving and towed rolling stock. The tribological research of these samples made of composite material with organic components aimed to determine the influence of certain material factors and operating regime parameters on the tribological properties of the tested samples. The brake shoes made of composite materials oneusesto replace the conventional cast iron brake shoes, to reduce the noise. The future research will focus on finding composite materials with superior properties compared to the currently used ones, and lower costs.

Research on Composite Materials Used for Brake Shoes Manufacture

2016 ◽  
Vol 254 ◽  
pp. 207-211 ◽  
Author(s):  
Erika Popa ◽  
Liviu Pascu ◽  
Ana Socalici ◽  
Marius Ardelean
Keyword(s):  
Composite Material ◽  
Cast Iron ◽  
Composite Materials ◽  
Carbon Fiber ◽  
Contact Zone ◽  
Laboratory Experiments ◽  
Rolling Stock ◽  
Brake Shoe ◽  
Materials Used

The paper relates laboratory experiments in order to obtain a composite material used for brake shoe manufacture. Regarding the testing materials were processed 38 samples. The percentage and composition of materials are: 15-45% novolac, 1,5-10% hexametyltetramin, 0-8% sulfur, 0-15% carbon fiber, 0-20% graphite, 0-25% aluminum, 15-28% brass and 0-40% rubber. The evolution of tribological and temperature parameters were analyzed in the contact zone tribological testing disk - split pin method. The composite material has the role to replace the classic material (cast iron) used in brake shoes composition in order to reduce the noise caused by rolling stock.

scholarly journals Laboratory Researches Regarding Wear of the Composite Materials for Making Brake Shoes

2017 ◽  
Vol 54 (2) ◽  
pp. 203-206 ◽  
Author(s):  
Erika Ardelean ◽  
Ana Socalici ◽  
Liviu Pascu ◽  
Vasile Putan ◽  
Teodor Heput
Keyword(s):  
Composite Material ◽  
Cast Iron ◽  
Composite Materials ◽  
Experimental Test ◽  
Standard Sample ◽  
Rolling Stock ◽  
Laboratory Conditions

The paper presents the results of the experiments on obtaining a composite material to be used in manufacturing brake shoes for the rolling stock. The aim was to replace the classical material used at present for the manufacturing of brake shoes: cast iron with a specially designed composite material. Six recipes have been tested and compared to a standard sample made of phosphorous cast iron. The wear trials carried out in laboratory conditions on the experimental test rods have led to results that entitle further experiments that implies the manufacturing of brake shoes made of the composite material in question.

Influence of the particle size on the physical, mechanical and tribological properties of composites for brake pads

2021 ◽  
pp. 36-40
Author(s):  
F.F. Yusubov
Keyword(s):  
Particle Size ◽  
Composite Materials ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Phenol Formaldehyde ◽  
Environmentally Friendly ◽  
Brake Pads ◽  
Mechanical And Tribological Properties ◽  
Pin On Disk ◽  
Properties Of Composites

Tribotechnical indicators of environmentally friendly frictional composite materials with phenol-formaldehyde matrix are studied. Friction tests were carried out on a MMW-1 vertical tribometer according to the pin-on-disk scheme. Keywords: brake pads, composites, friction and wear, plasticizers, degradation, porosity. [email protected]

scholarly journals Tribology of Natural Fibers Composite Materials: An Overview

Lubricants ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 42 ◽  
Author(s):  
Marko Milosevic ◽  
Petr Valášek ◽  
Alessandro Ruggiero
Keyword(s):  
Composite Materials ◽  
Friction And Wear ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Natural Fibers ◽  
Industrial Applications ◽  
Tribological Characteristics ◽  
Future Research ◽  
Wide Range ◽  
Mechanical And Tribological Characteristics

In the framework of green materials, in recent years, natural fiber composites attracted great attention of academia and industry. Their mechanical and tribological characteristics, such as high strength, elasticity, friction, and wear resistance, make them suitable for a wide range of industrial applications in which issues regarding a large amount of disposal are to be considered since their environmental friendliness gives them an advantage over conventional synthetic materials. Based on the recent and relevant investigations found in the scientific literature, an overview focused on the tribological characteristics of composite materials reinforced with different types of natural fibers is presented. The aim is to introduce the reader to the issues, exploring the actual knowledge of the friction and wear characteristics of the composites under the influence of different operating parameters, as well as the chemical treatment of fibers. The main experimental tribological techniques and the main used apparatus are also discussed, with the aim of highlighting the most appropriate future research directions to achieve a complete framework on the tribological behavior of many possible natural fiber composite materials.

scholarly journals Tribological Properties of AlSi17Cu5Mg Alloy Modified with CuP Master Alloy with Various Speeds of Friction

2016 ◽  
Vol 16 (1) ◽  
pp. 45-48 ◽  
Author(s):  
J. Piątkowski ◽  
R. Wieszała
Keyword(s):  
Cast Iron ◽  
Tribological Properties ◽  
Master Alloy ◽  
Friction And Wear ◽  
Primary Silicon ◽  
Initial Material ◽  
Material Microstructure ◽  
Silicon Crystals ◽  
Speed Change ◽  
The Difference

Abstract The paper presents the influence of modification with phosphorus (CuP10) on the tribological properties of the alloy AlSi17Cu5Mg coupled abrasively with cast-iron EN GJL-350. Tests of coefficient of friction and wear of mass were conducted on tribological tester T-01. An important aspect in the assessment of the tribological properties is the analysis of initial material microstructure in reference to silumin which underwent modification with phosphorus. It was found that the difference in structure of tested materials, mainly sizes of primary silicon crystals significantly influences the tribological properties whereas the speed change of the friction knot does not have such big influence.

Effects of Elements Composition on Tribological Properties of PES/Metal Matrix Composite Materials

2013 ◽  
Vol 313-314 ◽  
pp. 188-192
Author(s):  
Zhi Gao Luo ◽  
Jin Li ◽  
Bing Zhao ◽  
Jian Wei Xu
Keyword(s):  
Composite Materials ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Tribological Properties ◽  
Metal Matrix ◽  
Friction And Wear ◽  
Plastic Layer ◽  
Test Machine

The friction and wear characteristics of PES/metal matrix composite materials were tested by the ball-disc friction pair of UMT-2 friction and wear test machine. The plastic layer is composed of distinct components. The results showed that: the tribological properties of PES/metal matrix composites were improved significantly after added 5wt % of the LCP. With the increasing of PTFE the PES/metal matrix composite material friction coefficient and wear rate were decreasing when the load of 10N and rotating speed of 400rmp. But the friction coefficient and wear rate increased when the mass fraction of PTFE more than 22 wt %. The tribological properties were the best when the PTFE content was 18 wt % to 25 wt % in the plastic layer.

Friction and wear behaviour of mosaic surfaces formed by laser line remelting of cast iron

Wear ◽  
1993 ◽  
Vol 162-164 ◽  
pp. 89-91 ◽  
Author(s):  
D. Lauper ◽  
D. Elliott ◽  
G. Zambelli
Keyword(s):  
Cast Iron ◽  
Friction And Wear ◽  
Laser Line ◽  
Wear Behaviour

Enhanced tribological properties of MWCNT/Ni bulk composites – Influence of processing on friction and wear behaviour

Carbon ◽  
2014 ◽  
Vol 66 ◽  
pp. 164-171 ◽  
Author(s):  
Sebastián Suárez ◽  
Andreas Rosenkranz ◽  
Carsten Gachot ◽  
Frank Mücklich
Keyword(s):  
Tribological Properties ◽  
Friction And Wear ◽  
Wear Behaviour

scholarly journals Tribological Properties of Al-Based Composites Reinforced with Fullerene Soot

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6438
Author(s):  
Firuz Yunusov ◽  
Tatiana V. Larionova ◽  
Oleg Tolochko ◽  
Alexander D. Breki
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Composite Materials ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Pure Aluminum ◽  
Fullerene Soot ◽  
Scanning Electron

Aluminum-based composite materials reinforced with fullerene soot, which is a mixture of fullerene and amorphous carbon, are promising materials for friction and wear applications. Composite materials: aluminum with 2% fullerene soot (f.s) and Al with 2% f.s and 2% Cu were obtained via mechanical milling followed by hot pressing. The tribological properties (friction and wear) of the listed composites were investigated and compared with the results for pure aluminum obtained under similar conditions. It has been shown that the addition of fullerene soot reduces the friction coefficient by 25%. At additional alloying with copper, the friction coefficient decreased by 35% in comparison with pure aluminum and also lad to a decrease in friction fluctuations. The wear rate of composite Al with 2% f.s decreased twice in comparison with that of pure aluminum, and with additional alloying it decreased 2.5 times. The morphology of the wear surfaces was investigated by scanning electron microscopy (SEM). The influence of fullerene soot and additional alloying on the wear mechanism was shown.

Sign in / Sign up

Export Citation Format

Share Document