Elucidation of polymer wear resistance via nanoscale healing and fracture of sintered polystyrene particles

H. Mohammadi; N. Mohammadi; M. Kheirabadi

doi:10.1002/app.38480

Wear Failures of Plastics

10.31399/asm.hb.v11b.a0006850 ◽

2022 ◽

pp. 1-10

Author(s):

Gaurav Nagalia

Keyword(s):

Wear Resistance ◽

Wear Rate ◽

Gear Wheel ◽

Polymer Wear

Abstract This article presents the mechanisms of polymer wear and quantifies wear in terms of wear rate (rate of removal of the material). Interfacial and bulk wear are discussed as well as a discussion on the wear study of "elastomers," "thermosets," "glassy thermoplastics," and "semicrystalline thermoplastics." The article also discusses the effects of environment and lubricant on the wear failures of polymers. It presents a case study on considering nylon as a tribological material and failure examples, explaining wear resistance of polyurethane elastomeric coatings and failure of an acetal gear wheel.

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Coat of Epoxy Resin Filled with Nano-Al2O3 and MoS2 Erosion Wear Resistance and Application

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.628.40 ◽

2014 ◽

Vol 628 ◽

pp. 40-43 ◽

Cited By ~ 1

Author(s):

Chen Yong ◽

Kun Hu Kou ◽

Bin Li ◽

Jing Yan Leng

Keyword(s):

Wear Resistance ◽

Shear Strength ◽

Epoxy Resin ◽

Coupling Agent ◽

High Polymer ◽

Erosion Wear ◽

Resistant Material ◽

Pump Impeller ◽

Wear Resistant ◽

Polymer Wear

Under the bad environment, high polymer wear-resistant material has more superior erosion wear resistant performance than metal. It can replace wear-resistant metal material partly. In this paper, high polymer wear-resistant coat has been prepared with the epoxy resin, low molecular polyamide, nanoAl2O3coupling agent. The shear strength and wear resistant test has been carried out under different elements content, and the test curve of coat is given. The results are analyzed. By the experiment result, the optimum coat formula is: low molecular polyamide content is 60% relative to E – 51; and the content of MoS2is 12%. The result shows that the coat erosion wear resistance is 9 times of 45# steel under the best recipe. The coat is used to repair a worn mortar pump impeller, and the effect is obvious.

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Application of TEM to Deformation, Wear, and Fracture of Ceramics

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100052377 ◽

1974 ◽

Vol 32 ◽

pp. 472-473

Author(s):

B. J. Hockey

Keyword(s):

Wear Resistance ◽

High Temperature ◽

Mechanical Behavior ◽

Brittle Materials ◽

High Temperature Strength ◽

Wide Range ◽

Corrosive Environments ◽

Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

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Abrasive wear of polymer/steel gear drives

Progress in Agricultural Engineering Sciences ◽

10.1556/progress.4.2008.1 ◽

2008 ◽

Vol 4 (1) ◽

pp. 1-26

Author(s):

Gábor Kalácska

Keyword(s):

Wear Resistance ◽

Abrasive Wear ◽

Material Selection ◽

Solid Particles ◽

Soil Types ◽

General View ◽

Modern Engineering ◽

Clean Environment ◽

Engineering Polymers ◽

Plastic Gears

Research was performed on the friction, wear and efficiency of plastic gears made of modern engineering polymers and their composites both in a clean environment (adhesive sliding surfaces) and in an environment contaminated with solid particles and dust (abrasive), with no lubrication at all. The purpose is to give a general view about the results of abrasive wear tests including seven soil types as abrasive media. At the first stage of the research silicious sand was applied between the meshing gears and the wear of plastic and steel gears was evaluated and analyzed from the point of different material properties (elongation at break, hardness, yield stress, modulus of elasticity) and its combinations. The different correlations between the experienced wear and material features are also introduced. At the second stage of the project the abrasive sand was replaced with different physical soil types. The abrasive wear of gears is plotted in the function of soil types. The results highlight on the considerable role of physical soil types on abrasive wear resistance and the conclusions contain the detailed wear resistance. The results offer a new tribology database for the operation and maintenance of agricultural machines with the opportunity of a better material selection according to the dominant soil type. This can finally result longer lifetime and higher reliability of wearing plastic/steel parts.

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Comparative high-temperature wear resistance of CHS88U-VI alloy and H30N50YU5T2 satellite

Collection of Scientific Publications NUS ◽

10.15589/jnn20140407 ◽

2014 ◽

Vol 0 (4) ◽

Cited By ~ 2

Author(s):

Oleksandr M. Kostin ◽

Anastasiia Yu. Butenko ◽

Volodymyr O. Martynenko

Keyword(s):

Wear Resistance ◽

High Temperature ◽

High Temperature Wear

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Tempering and wear resistance of laser cladded MMC coating for corrugated rollers

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5061206 ◽

2007 ◽

Cited By ~ 1

Author(s):

Zhaoyong Qian ◽

Minlin Zhong ◽

Wenjin Liu ◽

Dongye Zhang ◽

Ruiquan Kang

Keyword(s):

Wear Resistance

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INCREASING THE WEAR RESISTANCE OF ELEMENTS AND COMPONENTS OF FORGING AND STAMPING EQUIPMENT (FOR EXAMPLE, PERFORMING SEPARATION OPERATIONS)

STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. In the frame of the XXIII Agribusiness Forum of the South of Russia and the Exhibition «Interagromash» Volume 1 ◽

10.23947/interagro.2020.1.686-687 ◽

2020 ◽

Author(s):

K.O. Kobzev ◽

◽

S.A. Vyalov ◽

E.S Bozhko ◽

I.A. Zolotuhina ◽

...

Keyword(s):

Wear Resistance ◽

Technological Capabilities ◽

Recoil Force ◽

The Press ◽

Strength And Durability

The article describes the possibilities of increasing the durability of crank presses. The influence of the main parameters of the press on the value of the recoil force was studied. Based on the analysis of this topic, the types of expansion of technological capabilities of crank presses and their strength and durability were summarized.

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