Composite Layers TiAlIntermetallic/PVD Coating Obtained by Hybrid Surface Treatment Technology on Aluminium Alloys

2015 ◽  
Vol 237 ◽  
pp. 34-40
Author(s):  
Jerzy Smolik ◽  
Adam Mazurkiewicz ◽  
Joanna Kacprzyńska-Gołacka ◽  
Michał Rydzewski
Keyword(s):  
Wear Resistance ◽  
Technological Process ◽  
Intermetallic Layer ◽  
Composite Layer ◽  
Layer Growth ◽  
Hybrid Layer ◽  
Treatment Technology ◽  
Composite Layers ◽  
Arc Evaporation ◽  
Nanohardness Tester

The paper presents the results of tests on an “intermetallic layer TiAl / coating AlCrTiN" hybrid layer, which was obtained using a hybrid method combining magnetron Sputtering, diffusion, and arc evaporation in a single technological process. The hybrid layer obtained was subjected to studies on morphology and chemical composition using the TM3000 scanning electron microscope. Additionally, hardness and Young's modulus as a function of distance from the surface were measured using a nanohardness tester CSM. Based on the analysis of the results obtained, the authors suggest the mechanism of layer growth in the technological process. The composite layer was also subjected to wear resistance using the ball-cratering method and erosion resistance tests using the glass powder. The obtained results showed that the Ti-Al intermetallic / AlCrTiN hybrid layer significantly increases resistance to abrasion as well as erosion wear resistance of the Ak12 alloy.

scholarly journals Composite Layers “MgAl Intermetalic Layer / PVD Coating” Obtained On The AZ91D Magnesium Alloy By Different Hybrid Surface Treatment Methods

2015 ◽  
Vol 60 (2) ◽  
pp. 1031-1035 ◽  
Author(s):  
J. Smolik ◽  
A. Mazurkiewicz ◽  
J. Kacprzyńska-Gołacka ◽  
M. Rydzewski ◽  
M. Szota ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Magnesium Alloys ◽  
Surface Engineering ◽  
Composite Layer ◽  
Electron Beam Evaporation ◽  
Treatment Technology ◽  
Corrosion Properties ◽  
Pvd Coating ◽  
Composite Layers ◽  
Coating Composite

Abstract Magnesium alloys have very interesting physical properties which make them ‘materials of the future’ for tools and machine components in many industry areas. However, very low corrosion and tribological resistance of magnesium alloys hampers the implementation of this material in the industry. One of the methods to improve the properties of magnesium alloys is the application of the solutions of surface engineering like hybrid technologies. In this paper, the authors compare the tribological and corrosion properties of two types of “MgAlitermetalic / PVD coating” composite layers obtained by two different hybrid surface treatment technologies. In the first configuration, the “MgAlitermetalic / PVD coating” composite layer was obtained by multisource hybrid surface treatment technology combining magnetron sputtering (MS), arc evaporation (AE) and vacuum heating methods. The second type of a composite layer was prepared using a hybrid technology combined with a diffusion treatment process in Al-powder and the electron beam evaporation (EB) method. The authors conclude, that even though the application of „MgAlitermetalic / PVD coating” composite layers can be an effective solution to increase the abrasive wear resistance of magnesium alloys, it is not a good solution to increase its corrosion resistance.

scholarly journals Tribological Properties of Single (AlSi7/SiCp, AlSi7/GCsf) and Hybrid (AlSi7/SiCp + GCsf) Composite Layers Formed in Sleeves via Centrifugal Casting

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2803 ◽  
Author(s):  
Anna Janina Dolata ◽  
Maciej Dyzia ◽  
Jakub Wieczorek
Keyword(s):  
Wear Resistance ◽  
Coefficient Of Friction ◽  
Tribological Properties ◽  
Hybrid Composite ◽  
Centrifugal Casting ◽  
Composite Layer ◽  
Vitreous Carbon ◽  
Structural Factors ◽  
Wear Process ◽  
Composite Layers

When designing the composition and structure of a composite material intended for tribological cooperation, many external and structural factors must be considered. The aim of this research was to compare the tribological properties (wear resistance and friction coefficient) of AlSi7Mg1Sr0.03/SiCp and AlSi7Mg1Sr0.03/GCsf single-reinforced composite layers with AlSi7Mg1Sr0.03/SiCp + GCsf hybrid composite layer formed in sleeves via vertical centrifugal casting. Profilometry enabled quantitative and qualitative analyses to be performed on the wear traces formed on investigated surfaces. The results show that a hybrid composite layer containing spherical glassy carbon particles had a significantly lower and more stable coefficient of friction (μ) and a higher wear resistance compared with single composite layers. The obtained effect was related to the mechanism of vitreous carbon consumption, which was crushed during operation, and then introduced between the cooperating friction surfaces. In this way, it acted as a solid lubricant, which stabilized the coefficient of friction and reduced the wear process.

The Study on Erosive and Abrasive Wear Resistance of Different Multilayer Coatings Obtained on Titanium Alloy Ti6Al4V

2015 ◽  
Vol 237 ◽  
pp. 9-14
Author(s):  
Adam Mazurkiewicz ◽  
Jerzy Smolik ◽  
Daniel Paćko ◽  
Joanna Kacprzyńska-Gołacka ◽  
Halina Garbacz ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Titanium Alloy ◽  
Abrasive Wear ◽  
Erosive Wear ◽  
Abrasive Wear Resistance ◽  
Multilayer Coatings ◽  
Hybrid Layer ◽  
Machine Elements ◽  
Titanium Alloy Ti6al4v ◽  
Arc Evaporation

One of the areas in which increased durability is of particular significance is the use of machine elements in conditions of intensive exposure to erosive wear, for example, turbine blades of aircraft engines and power turbines in ventilation systems, and machine elements working in a dusty environment. As it is apparent from the analysis of the state of the art, high possibilities to increase the erosive and abrasive wear resistance of machine elements are created by appropriately designed coatings and layers, especially multilayer coatings composed on the base of materials with different plasticity properties. This is associated with particular characteristics of this type of multilayer coatings that allow the absorption of external energy reaching the surface without causing permanent damage to the coating, while significantly reducing the erosive wear rate.The article presents the results of material research and the results of erosion test of three different materials solutions of surface engineering, i.e. multilayer coatings (Cr / CrN) x8, (TiN / ZrN)multinano and a (Ti-Al) intermetallic / AlCrTiN hybrid layer, obtained on titanium alloy Ti6Al4V. The (Cr / CrN) x8 and (TiN / ZrN)multinano multilayer coatings were obtained by arc evaporation, and the (Ti-Al) intermetallic / AlCrTiN hybrid layer was prepared using a hybrid technology combining diffusion saturation in aluminium powders and arc evaporation in a single technological process. The selected material solutions of the surface layer were subjected to the analysis of the structure by scanning electron microscopy (Hitachi 3000). Measurements of hardness and Young's modulus were conducted using the nanohardness Tester CSM. The results of this study allowed the authors to compare the erosive wear resistance and wear resistance of selected material solutions, and this led to the conclusion that the (Ti-Al) intermetallic / AlCrTiN hybrid layer is the most effective solution.

MICROSTRUCTURE AND WEAR RESISTANCE OF CHROMIUM CARBIDE COATING IN SITU SYNTHESIZED BY VEB

2014 ◽  
Vol 21 (05) ◽  
pp. 1450065 ◽  
Author(s):  
BINFENG LU ◽  
LIPING LI ◽  
FENGGUI LU ◽  
XINHUA TANG
Keyword(s):  
Wear Resistance ◽  
Composite Layer ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Powder Mixtures ◽  
X Ray ◽  
Surface Composite ◽  
Composite Layers ◽  
Surface Composite Layer

In this paper, ( Cr , Fe )7 C 3( M 7 C 3)/γ- Fe composite layer has been in situ fabricated on a low carbon steel surface by vacuum electron beam irradiation (VEB). Three kinds of powder mixtures were placed on a low carbon steel substrate, which was then irradiated with electron beam in vacuum condition. The microstructure and wear resistance of the composite layers has been studied by means of optical microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM), microhardness tester and tribological tester. The chemical composition of all specimens were carefully analyzed using energy-dispersive X-ray spectroscopy (EDAX) technique. Depending on three different powder mixtures, hypereutectic and hypoeutectic microstructures were obtained on surface composite layers. No pores and cracks were found on the coatings. The amount of carbides formed in the surface composite layer was mainly determined by carbon concentration. The microstructure close to the fusion line was largely primary austenite dendrite. The hardness and wear resistance of the surface composite layer has been greatly improved due to the extensive distribution of carbides.

scholarly journals Wear Resistance of TiC Reinforced Cast Steel Matrix Composite

2017 ◽  
Vol 17 (1) ◽  
pp. 143-146 ◽  
Author(s):  
S. Sobula ◽  
E. Olejnik ◽  
T. Tokarski
Keyword(s):  
Wear Resistance ◽  
Matrix Composite ◽  
Base Alloy ◽  
Cast Steel ◽  
Composite Layer ◽  
Wear Loss ◽  
Steel Matrix ◽  
Soft Matrix ◽  
Base Steel ◽  
The Matrix

Abstract Wear resistance of TiC-cast steel metal matrix composite has been investigated. Composites were obtained with SHSB method known as SHS synthesis during casting. It has been shown the differences in wear between composite and base cast steel. The Miller slurry machine test were used to determine wear loss of the specimens. The slurry was composed of SiC and water. The worn surface of specimens after test, were studied by SEM. Experimental observation has shown that surface of composite zone is not homogenous and consist the matrix lakes. Microscopic observations revealed the long grooves with SiC particles indented in the base alloy area, and spalling pits in the composite area. Due to the presence of TiC carbides on composite layer, specimens with TiC reinforced cast steel exhibited higher abrasion resistance. The wear of TiC reinforced cast steel mechanism was initially by wearing of soft matrix and in second stage by polishing and spalling of TiC. Summary weight loss after 16hr test was 0,14÷0,23 g for composite specimens and 0,90 g for base steel.

Wear Behaviour of TiC Coated AISI 4340 Steel Produced by TIG Surface Melting

2015 ◽  
Vol 819 ◽  
pp. 76-80 ◽  
Author(s):  
Md Abdul Maleque ◽  
Belal Ahmed Ghazal ◽  
Mohammad Yeakub Ali ◽  
Maan Hayyan ◽  
Abu Saleh Ahmed
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Steel Surface ◽  
Composite Layer ◽  
Wear Behaviour ◽  
Wear Volume ◽  
Coated Steel ◽  
Aisi 4340 Steel ◽  
4340 Steel ◽  
Aisi 4340

Coating possesses superior wear resistance which makes the material suitable for components subjected to dynamic applications under sever wearing condition and high temperature applications. In this study, TiC coating layer was synthesized by preplacing a 1 mg/mm2of fine size (~40 μm) TiC powder on the surface of AISI 4340 steel. The composite layer was produced by rapidly melting TiC powder together with the substrate steel using tungsten inert gas (TIG) torch welding at a fixed heat input of 1344 J/mm. The wear behaviour of the coated steel was investigated using a universal pin-on-disc tribometer. The microhardness profile of the coating showed increment of the hardness value (almost 5 times higher) than the substrate material. The wear test results showed that the TiC coated steel has lower wear volume loss hence, higher wear resistance compared to the substrate AISI 4340 steel. Incorporation of TiC into the steel surface has improved the wear behaviour of the steel by reduction of plastic deformation and ploughing of the steel surface. The SEM micrograph of the wear worn surface showed mild type of abrasive wear for coated steel whereas, the AISI 4340 steel showed severe type wear with excessive plastic deformation and ploughing.

Intermetallic Layer Growth Kinetics in Sn-Ag-Cu System using Diffusion Multiple and Reflow Techniques

2014 ◽  
Vol 17 (4) ◽  
pp. 512-522 ◽  
Author(s):  
Magdalena Pawełkiewicz ◽  
Marek Danielewski ◽  
Jolanta Janczak-Rusch
Keyword(s):  
Growth Kinetics ◽  
Intermetallic Layer ◽  
Layer Growth ◽  
Diffusion Multiple

Surface modification of die steels with B—Al-layers by thermal-chemical treatment

2021 ◽  
pp. 557-564
Author(s):  
N.S. Ulakhanov ◽  
U.L. Mishigdorzhiyn ◽  
A.G. Tikhonov ◽  
A.I. Shustov ◽  
A.S. Pyatykh
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Surface Layer ◽  
Surface Modification ◽  
High Temperature ◽  
Chemical Treatment ◽  
Quality Parameters ◽  
Processing Temperature ◽  
Die Steels ◽  
Composite Layers

The effect of diffusion high-temperature boroaluminizing (HBA) on the mechanical properties and quality parameters of the surface layer of stamp steels 5KhNM and 3Kh2V8F is shown. An analysis of the microstructure and composition of diffusion composite layers obtained as a result of thermal-chemical treatment (TCT) is presented and the distribution of microhardness in these layers is studied depending on the formed borides and carbides. The influence of processing temperature modes of on the parameters of roughness was experimentally established and the wear resistance characteristics of the processed surfaces of the investigated materials were determined.

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