scholarly journals Effect of concentration and dispersion of filler fractions on adhesive strength and abrasion resistance of an epoxy and sand composite

2019 ◽  
Vol 298 ◽  
pp. 00042
Author(s):  
Alexander Mikhalchenkov ◽  
Marina Mikhalchenkova ◽  
Sergey Feskov ◽  
Alexandr Kononenko
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Adhesive Strength ◽  
Abrasion Resistance ◽  
Natural Sand ◽  
Sand Particles

The increase in the adhesive strength of the epoxy and sand composite is equally regulated by the content of the sand component and the dispersiveness of its particles. The wear resistance of the composite is mainly determined by the size of sand particles, and the concentration significantly affects the degree of resistance to abrasive wear only when the fraction dispersiveness is equal to 1 mm. The maximum adhesive strength and wear resistance are characteristic for a composite of the following composition: 30 pts. wt. epoxy glue and 70 pts. wt. natural sand with a dispersiveness of 1 mm.

Examination of Abrasion Resistance Criteria for Some Ductile Metals

1974 ◽  
Vol 96 (2) ◽  
pp. 210-214 ◽  
Author(s):  
E. F. Finkin
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Young’S Modulus ◽  
Modulus Of Elasticity ◽  
Abrasion Resistance ◽  
Elastic Strain ◽  
Young's Modulus ◽  
Elastic Strain Energy ◽  
Abrasive Wear Resistance ◽  
Ductile Metals

Various abrasive wear resistance criteria are reviewed. These include hardness, modulus of elasticity, elastic strain limit, elastic-to-plastic contact transition factor, and elastic strain energy capacity. Experimental data from Khrushchov and Babichev, for the abrasion of a series of copper-nickel and lead-tin binary alloys, are used to evaluate the postulated abrasive wear resistance criteria. Modulus of elasticity shows a good correlation. Hardness is found not to correlate with wear resistance. The other abrasion resistance criteria are found to give ambiguous results. Wear resistance does not accurately follow the E1.3 power law found by Khrushchov for large differences in Young’s modulus when the changes in Young’s modulus are small, say within a factor of three. When comparing ductile materials of the types examined here for abrasion resistance, over a range of Young’s modulus within a factor of three, one can assume to a good approximation that abrasion resistance varies directly with Young’s modulus.

scholarly journals Effect of microstructure factors on abrasion resistance of high-strength steels

2014 ◽  
Vol 60 (No. 3) ◽  
pp. 115-120 ◽  
Author(s):  
E. ZDRAVECKÁ ◽  
J. TKÁČOVÁ ◽  
M. ONDÁČ
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Abrasion Resistance ◽  
High Strength Steels ◽  
Wear Test ◽  
High Hardness ◽  
High Strength ◽  
Abrasive Wear Resistance ◽  
And Performance ◽  
Three Body

Current development of high strength abrasion resistant steels is mostly oriented on high hardness, martensitic concept following the hypothesis that the abrasion resistance holds a proportional tendency with hardness. The various experimental observations have suggested that the high hardness of martenzite does not guarantee a high abrasion resistance because the brittle nature of martensite can lead to decrease their abrasive wear. The aim of this work was to analyse the influence of microstructure on abrasion resistance of selected high-strength low-alloyed steels used in the industry. The abrasive wear resistance of selected steels was obtained using an ASTM-G65 three-body abrasive wear test, microstructure and wear resistance determination. It was observed that grain refinement is an effective way of enhancing the abrasion resistance. In this context, micro alloyed steels offer an attractive combination of price and performance.

scholarly journals Three Body Abrasive Wear Behaviour of Polyamide 66/ Polypropylene (PA66/PP) Thermoplastic Blends

2017 ◽  
Vol 3 (1) ◽  
pp. 24-32
Author(s):  
B V Lingesh ◽  
B N Ravikumar ◽  
B M Rudresh
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Wear Behaviour ◽  
Wear Volume ◽  
Polyamide 66 ◽  
Wheel Wear ◽  
Sand Particles ◽  
Abrasive Wear Behaviour ◽  
Three Body ◽  
Pp Blends

Three body abrasive wear behaviour of Polyamide 66 and Polypropylene (PA66/PP) blends in different weight percentages of 95/5, 90/10, 85/15, 80/20, 75/25 and 70/30 are investigated. The experiments were carried out as per ASTM G65 by using rubber wheel abrasion tester (RWAT). The tests were conducted for a load of 50 and 75 N at a sliding velocity of 2.5 m/s with an abrading distance of 500, 1000 and 1500 m using fine abrasive dry sand particles as third body. The experimental results revealed that the wear volume and specific wear rate are the functions of load, abrading distance and composition of blend. It was observed from the experimentation that the lower loading of PP into blend decreases the wear resistance. The effective wear resistance starts from higher loading of PP (30 wt.%) in the blend. The abrasive sand particles and their size played a major role in determining the wear characteristics of PA66/PP blends. Substantiate amount of rubber wheel wear contributes to the development of wear resistance. The worn surfaces are studied by using Scanning Electron Microscope (SEM) photographs.

scholarly journals Enhancement of wear resistance of mulcher teeth with the help of electrochemical coats

2020 ◽  
Vol 193 ◽  
pp. 01019
Author(s):  
N. M. Belous ◽  
Yu. E. Kisel ◽  
G. V. Guryanov ◽  
L. M. Markaryants
Keyword(s):  
Wear Resistance ◽  
Service Life ◽  
Abrasive Wear ◽  
Adhesive Strength ◽  
Wear Resistant ◽  
Alloying Additives ◽  
Enhance Wear Resistance

Influence of alloying additives in electrolyte and conditions of electrolysis on microhardness, adhesive strength and wear resistance of iron and cobalt coats have been investigated. Conditions of creating coats which make it possible to considerably enhance wear resistance of the mulcher teeth under the conditions of abrasive wear have been established. The process of creating wear resistant coats have been approved and recommended to introduction after the service life of the mulcher teeth sets have been extended.

scholarly journals Abrasive Wear Resistance of Cast Iron with Precipitates of Spheroidal VC Carbides

2012 ◽  
Vol 12 (2) ◽  
pp. 221-226 ◽  
Author(s):  
M. Kawalec ◽  
E. Olejnik
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Abrasion Resistance ◽  
Eutectic Composition ◽  
Cast Steel ◽  
Abrasive Wear Resistance ◽  
Resistant Steel ◽  
Eutectic Carbides ◽  
Resistance Tests

Abrasive Wear Resistance of Cast Iron with Precipitates of Spheroidal VC Carbides The paper presents the results of abrasive wear resistance tests carried out on high-vanadium cast iron with spheroidal VC carbides. The cast iron of eutectic composition was subjected to spheroidising treatment using magnesium master alloy. The tribological properties were examined for the base cast iron (W), for the cast iron subjected to spheroidising treatment (S) and for the abrasion-resistant steel (SH). Studies have shown that high-vanadium cast iron with both eutectic carbides and spheroidal carbides has the abrasion resistance twice as high as the abrasion-resistant cast steel. The spheroidisation of VC carbides did not change the abrasion resistance compared to the base high-vanadium grade.

Finite Element Simulation of Abrasive Wear and Study of Wear Resistance of Material

2013 ◽  
Vol 765-767 ◽  
pp. 3192-3195
Author(s):  
Yu Jin Fan ◽  
Zhe Kun Li ◽  
Teng Han ◽  
Wei Da Wang
Keyword(s):  
Finite Element ◽  
Wear Resistance ◽  
Carbon Steel ◽  
Abrasive Wear ◽  
Yield Stress ◽  
Abrasion Resistance ◽  
Surface Deformation ◽  
Surface Shape ◽  
Resistance Property ◽  
Simulation Results

This paper presented the abrasive wear process of a particle pressing into the material and sliding on the surface simulated by finite element method to reveal wear characteristics and effect factors. The contact stress and surface deformation of material were indicated and material wear resistance was studied, it was found that the stress and the deformation of subsurface not only depends on mechanical properties of material and original surface shape, but also on deformed surface profile due to sliding. In order to prove the effects of material yield stress and deformation harden property on surface deformation and abrasion resistance property, the abrasive wear of three kinds of carbon steel were taken for examples, the simulation results were presented that the larger yield stress of carbon steel, the less surface deformation and the better abrasion resistance property when a particle sliding on the surface. The simulation results also shown that the deformation harden of carbon steel could reduce surface deformation, but couldnt always improve abrasion resistance property.

Abrasive wear of polymer/steel gear drives

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.

BÖHLER K100

Alloy Digest ◽  
2020 ◽  
Vol 69 (3) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Abrasive Wear ◽  
Tool Steel ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
High Carbon ◽  
High Chromium ◽  
Cold Work Tool Steel

Abstract Böhler K100 is a high-carbon, high-chromium (12%), alloy cold-work tool steel that is suitable for medium run tooling in applications where a very good abrasive wear resistance is needed but where demands on chipping resistance are small. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming and machining. Filing Code: TS-788. Producer or source: voestalpine Böhler Edelstahl GmbH & Co.

SANDVIK APM 2730

Alloy Digest ◽  
2019 ◽  
Vol 68 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
Physical Properties ◽  
Abrasive Wear ◽  
Tool Steel ◽  
High Speed ◽  
Heat Treating ◽  
Abrasive Wear Resistance ◽  
Steel Company ◽  
High Compressive Strength

Abstract Sandvik APM 2730 is a powder metallurgical alloyed hot-isostatic-pressed high-speed tool steel with abrasive wear resistance and high-compressive strength. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-763. Producer or source: Sandvik Steel Company.

BÖHLER K107

Alloy Digest ◽  
2020 ◽  
Vol 69 (9) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Abrasive Wear ◽  
Cold Work ◽  
Heat Treating ◽  
Abrasive Wear Resistance ◽  
Tungsten Alloy ◽  
High Carbon ◽  
Cold Work Tool Steel ◽  
Very High

Abstract Böhler K107 is a high-carbon (2.1%), 12% chromium. 0.7 % tungsten, alloy cold-work tool steel that is used in applications where a very high abrasive wear resistance is needed, but where demands on chipping resistance are small. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-799. Producer or source: voestalpine Böhler Edelstahl GmbH&Co KG.

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