Evaluation of Wear Resistance of Snow Plow Blade Cutting Edges Using the Scratch Test Method

Based on the analysis of the research directions in the field of coatings and layers with special operating properties, the production technologies of composite coatings, including the gradient, multi-layer, and multi-component coatings, should be distinct. The paper presents the results of material properties tests of a multi-layer coating Ti / TiN / TiAlNgradient / (TiAlN/VN)multinano obtained on hot working steel EN X32CrMoV3.3. The preparation of the multilayer coating was specially designed to increase the durability of forging dies in the brass forging process. The authors discuss the results of the microstructure tests for the obtained coatings (STEM+FIB) and present the hardness and Young's modulus as a function of the distance from the surface (nanoHardness Tester CSM) and the results of adhesion tests carried out using a scratch-test method. The obtained multilayer coatings were also subject to a tribological test using a tribometer tester by DUCOM. The authors indicate that the coatings based on vanadium nitride have very high hardness and Young's modulus (HV = 32–35 GPa, E = 420–450 GPa), a much lower coefficient of friction in combination with brass than steel, and a lower stability of these parameters at elevated temperatures. According to the authors, the coating represents an interesting material solution to increase the durability of forging dies in the process of brass forging.

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Influence of Aging Processes on Adhesion Properties of Metallic and Oxidic Thin Films

MRS Proceedings ◽

10.1557/proc-356-839 ◽

1994 ◽

Vol 356 ◽

Cited By ~ 1

Author(s):

C. R. Ottermann ◽

Y. Tomita ◽

M. Ishiyama ◽

K. Bange

Keyword(s):

Low Voltage ◽

Sol Gel ◽

Chemical Vapour ◽

Scratch Test ◽

Temperature Treatment ◽

Fused Silica ◽

Test Method ◽

Film Stress ◽

Aging Effects ◽

Adhesion Properties

AbstractAdhesion of oxidic and metallic films with thicknesses between 40 nm and 350 nm has been investigated by means of a scratch-test method based on a vibrating diamond micro-indenter. SiO2 and TiO2 films are precipitated on fused silica substrates by sol-gel techniques (SG), reactive evaporation (RE), reactive low-voltage ion plating (IP), and plasma impulse chemical vapour deposition (PICVD), and Cr-layers are produced by rf magnetron sputtering (SP). The influence of aging effects on film adhesion is investigated in respect of several conditions, like storage under ambient surroundings with differences in relative humidity or temperature treatment. A method is presented allowing control of the long-term stability of the scratch-test conditions. Temperature treatment up to 600 °C is found to have the most significant impact on adhesion properties. Adhesion increases for some SiO2 films, whereas for TiO2 layers an opposite behavior is observed. Here, the adhesion of the originally amorphous titania films is reduced due to the phase transition to polycrystalline anatase, which correlates with a significant increase in film stress.

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Effects of Electrolyte Plasma Carbonitriding on Tribological Properties of High Speed Steel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.712-715.7 ◽

2013 ◽

Vol 712-715 ◽

pp. 7-11 ◽

Cited By ~ 1

Author(s):

Mazhyn Skakov ◽

Bauyrzhan Rakhadilov ◽

Michael Sсheffler

Keyword(s):

Wear Resistance ◽

Tribological Properties ◽

High Speed ◽

High Speed Steel ◽

Scratch Test ◽

Abrasive Wear Resistance ◽

R6m5 Steel ◽

Surface Layers ◽

Test Conditions ◽

Modified Layer

This paper presents research of influence electrolyte plasma carbonitriding on tribological properties of R6M5 high-speed steel. Shows perspectiveness of carbonitriding high-speed steels in electrolyte plasma. The results of research demonstrated increasing wear-resistance of R6M5 steel after carbonitriding in electrolyte plasma. Under the same test conditions by the method of scratch-test have been determined that the depth of the scar of a modified layer has become less in comparison with the original sample, which indicates a significant increase of wear-resistance and hardness of the surface carbonitriding layer R6М5 steel. It was set that after electrolytic-plasma carbonitriding abrasive wear-resistance of the surface layers of R6M5 steel is increased by 25%. Introduction

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Tribological Studies of Steels Using the Abrasive Wheel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.83-86.545 ◽

2009 ◽

Vol 83-86 ◽

pp. 545-552 ◽

Cited By ~ 1

Author(s):

Majid Abbasi ◽

S. Kheirandish ◽

Y. Kharrazi ◽

J. Hejazi

Keyword(s):

Wear Resistance ◽

Wear Behavior ◽

Soft Materials ◽

Test Method ◽

High Wear Resistance ◽

Test Results ◽

Abrasive Wheel ◽

Different Types ◽

Pin On Disc ◽

A New Technique

The abrasive wear behaviors of different types of steels were evaluated using the abrasive wheel as a new technique in the pin on disc method. It is shown that the abrasive studies using this test method is acceptable for high wear resistance metals such as Hadfield steels, while it is not proper for soft materials such as mild steel. The test results on the different materials also show that initial hardness of materials cannot merely determine the wear resistance. However, microstructural changes during the sliding have significant effect on the wear behavior and must be included.

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Electrophoretic deposition of nc-TiO2/chitosan composite coatings on X2CrNiMo17-12-2 stainless steel

Archives of Metallurgy and Materials ◽

10.1515/amm-2017-0063 ◽

2017 ◽

Vol 62 (1) ◽

pp. 405-410 ◽

Cited By ~ 6

Author(s):

P. Ledwig ◽

M. Kot ◽

T. Moskalewicz ◽

B. Dubiel

Keyword(s):

Electrophoretic Deposition ◽

Composite Coatings ◽

Scratch Test ◽

Test Method ◽

Process Time ◽

Deposition Parameters ◽

Transmission Electron ◽

Polarization Test ◽

Chitosan Composite

Abstract This paper presents the results of the optimization of electrophoretic deposition parameters for manufacturing of nc-TiO2/chitosan composite coatings on X2CrNiMo17-12-2 steel as well as characterization of their microstructure, electrochemical properties and adhesion to the substrate. The parameters of the deposition, such as composition, pH and zeta potential of suspensions as well as voltage and process time were investigated. The microstructure of the coatings was characterized using scanning and transmission electron microscopy. Obtained coatings were crack-free and uniform. The adhesion strength to the substrate was measured by scratch-test method. The deposited coatings improve corrosion resistance of steel, what was confirmed by the results of the potentiodynamic polarization test in Ringer’s solution.

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