scholarly journals The friction properties of the HVOF sprayed coatings suitable for combustion engines, measured in compliance with ASTM G-99

2010 ◽  
Author(s):  
Š. Houdková ◽  
M. Kašparová ◽  
F. Zahálka
Keyword(s):  
Combustion Engines ◽  
Sprayed Coatings

Potential Use of Ceramic Plasma Sprayed Coatings in Combustion Engines

1987 ◽  
Author(s):  
F. Gitzhofer ◽  
A. Tronche ◽  
B. Cantini ◽  
J. Guyonnet ◽  
C. Martin ◽  
...  
Keyword(s):  
Combustion Engines ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings ◽  
Potential Use

Performance of Thermally Sprayed Coatings under Reciprocal Sliding Test

2010 ◽  
Vol 660-661 ◽  
pp. 463-467 ◽  
Author(s):  
A.B.C. Arnt ◽  
Márcio Roberto da Rocha ◽  
F. Costa da Silva
Keyword(s):  
Internal Combustion Engines ◽  
Repeated Loading ◽  
Combustion Engines ◽  
Loading Conditions ◽  
Surface Fatigue ◽  
Thermally Sprayed Coatings ◽  
Flat Steel ◽  
Sliding Test ◽  
Thermally Sprayed ◽  
Sprayed Coatings

This study aims to evaluate the behavior of thermally sprayed coatings with the HVOF technique (High Velocity Oxygen Fuel), subject to tribological testing of reciprocal movement with the SAE 52100 flat steel pin, in accordance with ASTM G 133. The carbon with Cr2C3-25NiCr and WC-12Co were evaluated under conditions of intense surface fatigue. The microstructure and surface modifications were analyzed by optical microscopy and scanning electron microscopy. By using these techniques were possible to compare the modifications of the coatings under repeated loading conditions, and to expand the knowledge about wear mechanisms, mainly the adhesive one, present in several mechanical components, particularly in bearing and internal combustion engines. The coatings tested showed lower wear rate when compared to SAE52100 steel and equivalent behavior among the different loading conditions applied.

Detonation-gas deposition of coatings as controlled system for directed formation of coatings adhesionin restoration of mechanical systems of automotive tractor internal combustion engine

2020 ◽  
pp. 522-528
Author(s):  
I.A. Bezborodov
Keyword(s):  
Adhesion Strength ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Internal Combustion ◽  
System Of Equations ◽  
Combustion Engines ◽  
Controlled System ◽  
The Relationship ◽  
Sprayed Coatings ◽  
Deposition Mode

The development of multi-factor mathematical model of the relationship between the parameters of the detonation-gas deposition mode and the adhesion strength of the coating, as well as the results of the formation of the technological residual stresses level from the influence of the coating thickness are presents. Calculated method for determining of the minimum adhesion strength of sprayed coatings for restoring of the necks of crankshafts of internal combustion engines of different power is given. The general results are presented by system of equations for computer program for conditional optimization of detonation-gas deposition modes for the directional formation of properties of restored crankshaft necks of automobile and tractor internal combustion engines of different power.

CHARACTERIZATION OF AS-SPRAYED AND LASER-TREATED ZIRCONIA-BASED PLASMA SPRAYED COATINGS

1990 ◽  
Vol 51 (C5) ◽  
pp. C5-393-C5-402
Author(s):  
A. FERRIERE ◽  
G. FLAMANT ◽  
J.-F. ROBERT ◽  
P. PEKSHEV ◽  
I. SMUROV ◽  
...  
Keyword(s):  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings

DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES

2018 ◽  
pp. 18-24
Author(s):  
Petar Kazakov ◽  
Atanas Iliev ◽  
Emil Marinov
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Internal Combustion Engines ◽  
Experimental Studies ◽  
Combustion Engines ◽  
Engine Operation ◽  
Factors Affecting ◽  
Operating Modes ◽  
Positive Effects

Over the decades, more attention has been paid to emissions from the means of transport and the use of different fuels and combustion fuels for the operation of internal combustion engines than on fuel consumption. This, in turn, enables research into products that are said to reduce fuel consumption. The report summarizes four studies of fuel-related innovation products. The studies covered by this report are conducted with diesel fuel and usually contain diesel fuel and three additives for it. Manufacturers of additives are based on already existing studies showing a 10-30% reduction in fuel consumption. Comparative experimental studies related to the use of commercially available diesel fuel with and without the use of additives have been performed in laboratory conditions. The studies were carried out on a stationary diesel engine СМД-17КН equipped with brake КИ1368В. Repeated results were recorded, but they did not confirm the significant positive effect of additives on specific fuel consumption. In some cases, the factors affecting errors in this type of research on the effectiveness of fuel additives for commercial purposes are considered. The reasons for the positive effects of such use of additives in certain engine operating modes are also clarified.

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