Wear Behavior of Zirconium Oxide (ZrO2) Coating over the Surface of Electro Less Nickel Plating on Tool Steel Substrate

2013 ◽  
Vol 440 ◽  
pp. 88-91
Author(s):  
P.M. Madhankumar ◽  
S. Ilaiyavel
Keyword(s):  
Tool Steel ◽  
Coefficient Of Friction ◽  
Zirconium Oxide ◽  
Wear Behavior ◽  
Steel Substrate ◽  
Wear Test ◽  
Wear Loss ◽  
Nickel Plating ◽  
Pin On Disc ◽  
The Coefficient Of Friction

The knowledge of the properties of the coating in terms of wear resistance is of paramount importance in order to prevent the formation of severe damages. In this study, the wear performances of Zirconium oxide (ZrO2) coating over the surface of electro less nickel plating on aluminum and tool steel substrate is analyzed. The surface morphology of coatings was examined by Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectroscopy (EDX) .The wear tests were performed in a pin on disc apparatus as per ASTM G-99 Standard. The coefficient of friction and wear loss are evaluated. The results of the wear test established that coated pins exhibited the lowest average coefficient of friction and the lowest wear loss when compared with uncoated pins.

Wear Characteristics of Manganese Phosphate Coating with Oil Lubricant

2011 ◽  
Vol 110-116 ◽  
pp. 616-620 ◽  
Author(s):  
S. Ilaiyavel ◽  
A. Venkatesan ◽  
N. Nallusamy ◽  
T. Sornakumar
Keyword(s):  
Coefficient Of Friction ◽  
Normal Load ◽  
Wear Test ◽  
Wear Loss ◽  
Manganese Phosphate ◽  
Industrial Coating ◽  
Pin On Disc ◽  
Aisi D2 ◽  
The Coefficient Of Friction ◽  
Pin On Disk

Manganese Phosphate is an Industrial coating used to reduce friction and improve lubrication in sliding components. In this study, the tribology behavior of uncoated, manganese phosphate coated, Manganese Phosphate with oil lubricant AISI D2 steels was investigated. The Surface morphology of manganese phosphate coatings was examined by scanning electron microscope (SEM) and Energy dispersive X-ray Spectroscopy (EDX) .The wear tests were performed in a pin on disk apparatus as per ASTM G-99 Standard. The wear resistance of the coated steel were evaluated through pin on disc test using a sliding velocity of 0.35 m/s under normal load of 5 to35 N and controlled condition of temperature and humidity. The Coefficient of friction and wear loss were evaluated. Based on the results of the wear test, the manganese phosphate with lubricant exhibited the lowest average coefficient of friction 0.13 and the lowest wear loss 0.4 mm3under 35 N load.

scholarly journals Investigation of Mechanical Properties of AISI 316 Stainless Steel by Carbonitriding Process

2020 ◽  
Vol 184 ◽  
pp. 01018
Author(s):  
A Rohit Sai Krishna ◽  
B Vamshi Krishna ◽  
D Harshith ◽  
T Sashank ◽  
Ram Subbiah
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Wear Behavior ◽  
Wear Test ◽  
Salt Bath ◽  
Wear Loss ◽  
Case Hardening ◽  
Wide Range ◽  
Pin On Disc ◽  
Aisi 316 Stainless Steel

This project investigates on salt bath nitriding process in order to improve the wear behavior of the material. This process increases the hardness of the material. The specimens were nitrided at 580°c on three different timing hours such as 60 minutes, 90 minutes & 120 minutes. A pin on disc machine is used to conduct wear test, so that wear loss can be determined. The specimens are to be magnified by metallographic test like scanning electron microscope. The untreated specimen is used to compare with the nitrided specimen. The best specimen is chosen which determines the life of material & improves the better wear resistance. The hardness of untreated material and nitrided material are compared. The material AISI stainless steel has many unique properties but it lacks wear resistance and hardness because of which it has limited applications. By conducting heat treatment operation, the hardness of the material does not improve, but by conducting case hardening process the hardness of the outer case will be high compared to base metal. If the hardness and wear resistance of the material improves the material can be used in wide range of applications.

Wear Characteristics of Al 6061 Reinforced with Graphite under Different Loads and Speeds

2011 ◽  
Vol 287-290 ◽  
pp. 998-1002 ◽  
Author(s):  
A. Baradeswaran ◽  
A. Elayaperumal
Keyword(s):  
Composite Material ◽  
Wear Behavior ◽  
Wear Test ◽  
Wear Loss ◽  
Dry Sliding ◽  
Matrix Composites ◽  
Atmospheric Conditions ◽  
Graphite Composite ◽  
Al 6061 ◽  
Pin On Disc

This work investigates Al 6061 alloy with graphite particle impregnated metal matrix composites under dry sliding conditions. The conventional casting techniques were used for preparing the composite material. Experiments were conducted under dry sliding conditions for determining the wear behavior of Al 6061 alloy- Graphite composite material with varying wt % graphite content under different sliding speeds and at different loads. Sliding distance of 250m was commonly used for the wear test. A pin on disc machine was used for conducting the wear test. The test was conducted under atmospheric conditions. Wear rate decreases with increased sliding speed and increases with increasing load. Worn surfaces of the composites were examined through scanning electron microscope. The wear loss of the composite material with 5Wt % graphite was found to be minimum with respect to sliding speeds and loads.

Effect of Aging Treatment on Microstructure and Wear Behaviour of a Nickel Based Hardfaced Coating

2011 ◽  
Vol 194-196 ◽  
pp. 2284-2289
Author(s):  
D. Kesavan ◽  
M. Kamaraj
Keyword(s):  
Wear Behavior ◽  
Steel Substrate ◽  
Aging Treatment ◽  
Coarse Grained ◽  
Wear Behaviour ◽  
Wear Loss ◽  
Ambient Atmosphere ◽  
Hardfacing Alloy ◽  
Pin On Disc ◽  
Effects Of Aging

The nickel based Colmonoy 5 alloy powder was deposited on 316 L (N) austenitic stainless steel substrate. In order to examine the effects of aging treatment on the wear behavior of a nickel based hardfacing alloy, the as-deposited coating was aged at 580°C for 5000h in ambient atmosphere. Coating microstructures were characterised by scanning and transmission electron microscopy. Sliding tests were conducted under self mated condition at room temperature and 550°C using a pin-on disc type apparatus. The wear loss of the aged coating was found to be higher than that of the as deposited coating. The coarse grained structure with carbide (Cr23C6) precipitation in the aged coating would account for the higher sliding wear loss. However, the aged coating, with reduced hardness exhibits similar wear behavior of as deposited coating during sliding at 550°C.

Tribological Charecterization of Carbon Epoxy Composite Materials with Particulate Silane Treated SiC Fillers

2014 ◽  
Vol 984-985 ◽  
pp. 331-335
Author(s):  
J.R. Prabhu Stalin ◽  
I. Jenish ◽  
S. Indran
Keyword(s):  
Composite Materials ◽  
Coefficient Of Friction ◽  
Sliding Wear ◽  
Wear Test ◽  
Epoxy Composites ◽  
Dry Sliding Wear ◽  
Wear Loss ◽  
Dry Sliding ◽  
Sliding Velocity ◽  
Pin On Disc

The polymeric matrix Composite Materials is widely used for automotive and aeronautical industry applications due to its superior properties. The tribological properties of the Carbon Epoxy Composites with 5% of silane treated SiC and 10% of silane treated SiC which were added separately and it has been investigated experimentally by the dry sliding wear test using the Pin-on-Disc type wear test rig. The main parameters Sliding Speed (S), Applied Load (L) and Sliding Distance (D) which were considered for the experimental investigation and evaluated the dry sliding wear characteristics of composites. Under increased levels of loads and sliding velocity conditions higher wear loss was noted. The coefficient of friction values from the result shown that the increased value with addition in load and also sliding velocity. It results was compared that the Carbon Epoxy Composites containing ST - SiC Fillers having lower Coefficient of Friction than plain Carbon Epoxy Composites. From the observations maximum wear resistance were found and discussed.

scholarly journals Tribological Behavior of As-Cast and Aged AlCoCrFeNi2.1 CCA

Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 208 ◽  
Author(s):  
Fevzi Kafexhiu ◽  
Bojan Podgornik ◽  
Darja Feizpour
Keyword(s):  
Coefficient Of Friction ◽  
Ostwald Ripening ◽  
Wear Behavior ◽  
Wear Test ◽  
Phase Fraction ◽  
Cast Material ◽  
Delamination Wear ◽  
Aging Conditions ◽  
The Coefficient Of Friction ◽  
Induced Changes

In the present study, wear behavior as a function of aging time was evaluated for the AlCoCrFeNi2.1 eutectic complex, concentrated alloy (CCA) consisting of B2 (BCC), and L12 (FCC) lamellae in the as-cast state. By aging the material at 800 °C up to 500 h, precipitation of a fine, evenly dispersed micro-phase inside the L12 takes place. From 500 h to 1000 h of aging, precipitates coarsen by the Ostwald ripening mechanism. Reciprocating wear tests were characterized by a prevailing abrasive wear mechanism, while adhesive and delamination wear components change with aging conditions. The L12 phase with lower hardness in the as-cast material preferentially deformed during the wear test, which was not the case after aging the material, i.e., with the presence of precipitates. Aging-induced changes show a similar trend for the coefficient of friction and L12 + precipitates phase fraction, whereas changes in specific wear rate are in a good agreement with changes in B2 phase fraction. In general, aging the AlCoCrFeNi2.1 CCA at 800 °C up to 500 h decreases its coefficient of friction due to reduced adhesive wear component and enhances its wear performance through precipitation strengthening.

Tribological response of polycarbonate and acrylonitrile butadiene styrene blends containing fixed amounts of Kevlar fibre and molybdenum disulphide with varying quantities of betel nut powder

2021 ◽  
pp. 096739112199882
Author(s):  
T Pramod ◽  
P Sampathkumaran ◽  
N Puneeth ◽  
RRN Sailaja ◽  
S Seetharamu ◽  
...  
Keyword(s):  
Coefficient Of Friction ◽  
Wear Test ◽  
Acrylonitrile Butadiene Styrene ◽  
Nano Particles ◽  
Wear Loss ◽  
Betel Nut ◽  
Molybdenum Disulphide ◽  
Powder Concentration ◽  
Pin On Disc ◽  
Butadiene Styrene

In this study, the composites with incorporation betel nut powder at three levels (10, 18 and 25%) in Polycarbonate (PC) and Acrylonitrile Butadiene Styrene (ABS) matrices having Kevlar Fibres (KF) and Molybdenum Disulphide (MoS2) nano particles in fixed amounts are looked into for their tribological characteristics. The effect of hardness, surface roughness and density was evaluated. FTIR and X-ray diffraction (XRD) studies have been carried out to identify the phases. The effects of load on the slide wear loss and coefficient of friction of the composites were determined using Pin on Disc set up. The wear test pertaining to the betel nut bearing (BNP) composites were compared with those of betel nut free ones i.e. PC/ABS/KF/MoS2. The results revealed that with increase in load, the wear loss increases. Further with increase in betel nut powder concentration from 10% to 25% there is a decrease in wear loss as well as coefficient of friction. The surface morphology of the worn surface were examined using Scanning Electron Microscopy (SEM) which revealed higher plastic deformation, debris formation and furrowing in BNP free systems compared to betel nut bearing ones.

INFLUENCE OF NITROGEN FLOW RATE ON FRICTION COEFFICIENT AND SURFACE ROUGHNESS OF TiN COATINGS DEPOSITED ON TOOL STEEL USING ARC METHOD

2007 ◽  
Vol 14 (05) ◽  
pp. 1007-1013 ◽  
Author(s):  
ESAH HAMZAH ◽  
ALI OURDJINI ◽  
MUBARAK ALI ◽  
PARVEZ AKHTER ◽  
MOHD RADZI HJ. MOHD TOFF ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Friction Coefficient ◽  
Tool Steel ◽  
Flow Rate ◽  
Physical Vapor Deposition ◽  
Gas Flow ◽  
Cutting Tools ◽  
Gas Flow Rate ◽  
Pin On Disc ◽  
The Coefficient Of Friction

In the present study, the effect of various N 2 gas flow rates on friction coefficient and surface roughness of TiN -coated D2 tool steel was examined by a commercially available cathodic arc physical vapor deposition (CAPVD) technique. A Pin-on-Disc test was carried out to study the Coefficient of friction (COF) versus sliding distance. A surface roughness tester measured the surface roughness parameters. The minimum values for the COF and surface roughness were recorded at a N 2 gas flow rate of 200 sccm. The increase in the COF and surface roughness at a N 2 gas flow rate of 100 sccm was mainly attributed to an increase in both size and number of titanium particles, whereas the increase at 300 sccm was attributed to a larger number of growth defects generated during the coating process. These ideas make it possible to optimize the coating properties as a function of N 2 gas flow rate for specific applications, e.g. cutting tools for automobiles, aircraft, and various mechanical parts.

Investigation of the friction behavior of plasma spray Mo/NiCrBSi coated brake discs

2021 ◽  
Vol 63 (3) ◽  
pp. 259-265
Author(s):  
Halil Kılıç ◽  
Cenk Mısırlı ◽  
İbrahim Mutlu
Keyword(s):  
Coefficient Of Friction ◽  
Plasma Spray ◽  
Wear Behavior ◽  
Atmospheric Plasma ◽  
Brake Disc ◽  
Friction Behavior ◽  
Braking Performance ◽  
Spray Process ◽  
The Coefficient Of Friction ◽  
Nicrbsi Coating

Abstract This paper presents the findings of comparative research conducted to find out the braking performance of a Mo/NiCrBSi coated automobile brake disc. The friction and wear behavior of the Mo/NiCrBSi coating (CD) used for the disc material was evaluated using a laboratory scale disc-pad dynamometer and compared with a reference disc (RD). The coating was deposited by means of the atmospheric plasma spray process on a grey cast iron substrate. Braking tests were performed according to the SAE-J2430 test standard. Disc microstructures were characterized by SEM and XRD. It was found that the bonding strength was good with an infinite rating between the accumulated coating layer and the substrate. The results show that the coated brake disc has a comparable coefficient of friction and that the amount of wear is lower than that of the reference disc. The addition of ductile phases to the disc coating was beneficial in reducing the coefficient of friction to an acceptable degree and also effectively improving wear resistance.

Effect of Heat Treatment on the Structure, Wear and Corrosion of AISI L6 Tool Steel

2021 ◽  
Vol 406 ◽  
pp. 448-456
Author(s):  
Oualid Ghelloudj ◽  
Amel Gharbi ◽  
Djamel Zelmati ◽  
Khedidja Bouhamla ◽  
Chems Eddine Ramoul ◽  
...  
Keyword(s):  
Tool Steel ◽  
Tribological Behavior ◽  
Wear Testing ◽  
Wear And Corrosion ◽  
Hardening Treatment ◽  
Pin On Disc ◽  
The Coefficient Of Friction ◽  
Hardened Tool Steel ◽  
Hardness Increase ◽  
Steel Hardening

This work is a contribution in analyzing structure, tribological behavior and corrosion of AISI L6 hardened tool steel. Structural characterization and tribological behavior of steel were investigated using Optical Microscopy (OM), Scanning electron microscopy (SEM), wear testing by friction on a pin-on-disc Tribometer and corrosion by potentiodynamic polarization. Comparing to the as-received steel, hardening has generated a fine martensitic microstructure causing a 1.5 times hardness increase. Hardening has contributed to improvement of wear resistance as the coefficient of friction has decreased from 0.86 to 0.67μ. An increase in corrosion resistance was observed after hardening treatment.

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