scholarly journals Effect of Nano Structured NiFe and NiP Thin Layer Coatings on Structural and Mechanical Properties of Mild Steel

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2262-2266
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Mild Steel ◽  
Wear Behavior ◽  
Diffraction Method ◽  
Wear Test ◽  
Thin Layers ◽  
Constant Current ◽  
Constant Current Density ◽  
Pin On Disc

The nano crystalline thin coating of NiFe and NiP C has been successfully carried out by using electroplating technique in order to enhance the structural and mechanical properties of mild steel. The NiFe & NiP thin layers were coated on mild steel at constant current density and pH over a deposition period of 30 minutes. All the coated mild steel samples were subjected to various characterization techniques like X-ray Diffraction method (XRD), Vickers hardness, surface roughness and wear test to reveal the effect of NiFe and NiP on mild steel. The mechanical properties such as surface roughness and wear behavior were investigated by using Stylus profilometer and Pin on disc method. The coated mild steel exhibits enhanced mechanical properties than that of uncoated mild steel. The variations in structural and mechanical properties of coated mild steel were also studied.

scholarly journals A Research on Niw Alloy Coatings on Mild Steel through Electrodeposition Method

2019 ◽  
Vol 8 (9S2) ◽  
pp. 442-445
Keyword(s):  
Mechanical Properties ◽  
Mild Steel ◽  
Deposition Time ◽  
Wear Behavior ◽  
Hardness Test ◽  
Bath Temperature ◽  
Constant Current ◽  
X Ray Diffraction ◽  
Constant Current Density ◽  
Pin On Disc

In order to enhance the structural and mechanical properties of mild steel, NiW nanocrystalline thin layer has been coated on the surface of mild steel through electroplating technique at bath temperature of 40 C over the deposition time of 45 minutes. The nanocrystalline NiW alloy coatings were deposited on mild steel at constant current density of 1 A/dm2 . The structural and chemical characterizations of the NiW alloy coated mild steel were performed by scanning electron microscopy (SEM) and X-ray diffraction pattern (XRD). The micro hardness value of the coated mild steel was determined by using Vickers Hardness test. The effect of NiW on wear behavior of mild steel was analyzed using Pin-on-disc apparatus. The mechanical properties of mild steel such as hardness, roughness and wear resistance have been enhanced in an appreciable manner. This is primarily due to the NiW alloy coatings on mild steel. The variations in structural and mechanical properties of NiW coated mild steel were also studied

Performance characteristics of steel 1.2842 after nitridation

2021 ◽  
Vol 16 (1) ◽  
pp. 43-48
Author(s):  
Michal Krbaťa ◽  
◽  
Jana Escherová ◽  
Keyword(s):  
Mechanical Properties ◽  
Surface Roughness ◽  
Wear Resistance ◽  
Chemical Composition ◽  
Plasma Nitriding ◽  
Cutting Tools ◽  
Operating Costs ◽  
Mechanical And Tribological Properties ◽  
Structure Thickness ◽  
Pin On Disc

The paper deals with the change in mechanical properties and wear of 1.2842 universal tool steel after plasma nitriding, which is widely used to produce cutting tools with good durability and low operating costs. Plasma nitriding was performed at a temperature of 500 °C for 10-hour period in a standard N2 /H2 atmosphere with 1:3 gases ratio. Microstructure, phase structure, thickness of a nitriding layer and surface roughness of samples were measured with optical microscopes and a profilometer. Verification of a chemical composition was carried out on the BAS TASMAN Q4 device. Wear resistance was measured on a universal TRIBOLAB UTM 3 tribometer, through a, “pin on disc“ method. The results of experiments have shown that plasma nitriding process, significantly improves the mechanical and tribological properties of selected materials.

Investigation on Biocompatibility and Mechanical Properties of Ti15Mg Alloy

2021 ◽  
Vol 1039 ◽  
pp. 557-564
Author(s):  
Haydar Abdul Hassan Al-Ethari ◽  
Sundus Abbas Jasim ◽  
Ekhlas Khalid Zamel
Keyword(s):  
Mechanical Properties ◽  
Wear Behavior ◽  
Research Work ◽  
Wear Test ◽  
Optical Microscope ◽  
Alloy Sample ◽  
Microscope Analysis ◽  
Good Biocompatibility ◽  
Prepared Alloy

In this research work, bioactive Ti15Mg alloy was prepared by powder metallurgy route to investigate its biocompatibility and mechanical properties. Many tests were performed including X-ray diffraction; optical microscope analysis, scanning electron microscope analysis, ultrasonic wave test, corrosion behavior test, Static immersion test, and the wet sliding wear test. The XRD result shows that the prepared alloy sample consist of (α-Ti phase) and Mg. The microstructure of the prepared alloy sample consisted of a biodegradable Mg or pore and alpha titanium. The effect of the Mg content on degradability was tested based on simulated body fluid of Ringer solutions using electrochemical corrosion. The findings indicate that an elastic modulus of 47GPa exhibits the alloy. There were low corrosion rates of the alloy. The Ti matrix remained integrity after 14 days of immersion in the Ringer solutions, and the magnesium phase dissolved in the solution, causing a layer to form on the alloy. The wear behavior of the prepared ally at wet sliding conditions was evaluated using pin on disc method. The in vitro analysis showed good biocompatibility with Ti15Mg alloy. The prepared alloy demonstrates good biocompatibility and bioactivity.

Investigation of thermochemical boriding effect on wear behavior of a GGG 50 quality as-cast ductile iron

2016 ◽  
Vol 68 (4) ◽  
pp. 476-481 ◽  
Author(s):  
Harun Mindivan
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Ductile Iron ◽  
Room Temperature ◽  
Wear Behavior ◽  
Surface Hardness ◽  
Wear Test ◽  
Content Type ◽  
Pin On Disc ◽  
Cast Ductile Iron

Purpose This study aims to investigate the microstructure and the abrasive wear features of the untreated and pack borided GGG 50 quality ductile iron under various working temperatures. Design/methodology/approach GGG 50 quality as-cast ductile iron samples were pack borided in Ekabor II powder at 900°C for 3 h, followed by furnace cooling. Structural characterization was made by optical microscopy. Mechanical characterization was made by hardness and pin-on-disc wear test. Pin-on-disc test was conducted on a 240-mesh Al2O3 abrasive paper at various temperatures in between 25 and 450°C. Findings Room temperature abrasive wear resistance of the borided ductile iron increased with an increase in its surface hardness. High-temperature abrasive wear resistances of the borided ductile iron linearly decreased with an increase in test temperature. However, the untreated ductile iron exhibited relatively high resistance to abrasion at a temperature of 150°C. Originality/value This study can be a practical reference and offers insight into the effects of boriding process on the increase of room temperature wear resistance. However, above 150°C, the untreated ductile iron exhibited similar abrasive wear performance as compared to the borided ductile iron.

scholarly journals Wear Behavior of Aluminium Metal Matrix Composite Prepared from Industrial Waste

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
L. Francis Xavier ◽  
Paramasivam Suresh
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Industrial Waste ◽  
Wear Behavior ◽  
Wear Test ◽  
Dust Particles ◽  
Dry Sliding Wear ◽  
Pin On Disc ◽  
Aluminium Metal

With an increase in the population and industrialization, a lot of valuable natural resources are depleted to prepare and manufacture products. However industrialization on the other hand has waste disposal issues, causing dust and environmental pollution. In this work, Aluminium Metal Matrix Composite is prepared by reinforcing 10 wt% and 20 wt% of wet grinder stone dust particles an industrial waste obtained during processing of quarry rocks which are available in nature. In the composite materials design wear is a very important criterion requiring consideration which ensures the materials reliability in applications where they come in contact with the environment and other surfaces. Dry sliding wear test was carried out using pin-on-disc apparatus on the prepared composites. The results reveal that increasing the reinforcement content from 10 wt% to 20 wt% increases the resistance to wear rate.

scholarly journals Wear Behaviour of SAE 4340 Steel in Comparison with Single Test Specimen

2020 ◽  
Vol 12 (3) ◽  
pp. 219-228
Author(s):  
Nadendla SRINIVASABABU
Keyword(s):  
Wear Behavior ◽  
Wear Test ◽  
Steel Specimen ◽  
Wear Behaviour ◽  
Progressive Damage ◽  
Test Machine ◽  
Loading Test ◽  
Test Speed ◽  
4340 Steel ◽  
Pin On Disc

This study addresses the progressive damage of a surface/specimen/component caused by another substance in relative motion. This could cause the change in geometry, dimensions of the part which loses the practical functionality. So, an attempt was made to study the wear behavior of SAE 4340 steel using a pin-on-disc wear test machine at different loading, test speed, and time. Two cases viz. (1) single steel specimen, (2) multiple specimens were considered for the wear test and the obtained wear (μm), and frictional force (N) was compared.

scholarly journals Modification of Surface Topography and Analysis of Its Impact on Friction and Wear Reduction of Sliding Contact

2019 ◽  
Vol 9 (1S3) ◽  
pp. 23-26
Keyword(s):  
Friction And Wear ◽  
Wear Behavior ◽  
Surface Texturing ◽  
Wear Test ◽  
Sliding Contact ◽  
Surface Textures ◽  
Sliding Direction ◽  
Pin On Disc ◽  
Interacting Surfaces ◽  
The Impact

Proper lubrication and surface modification are key factors to improve the tribological behavior of interacting sliding surfaces under lubricated conditions. Surface texturing of interacting surfaces has found to be an emerging technique that modifies the surfaces deterministically by producing surface features in the form of surface asperities or grooves with specific shape, size and distribution. The present paper address the impact of positive surface textures (protrusions) and number of positive textures in the sliding direction on friction and wear behavior of parallel sliding contacts. The square shaped positive surface textures are created on the specimen by ink-jet followed by chemical etching process. The sliding experiments are conducted on pin on disc friction and wear test rig by providing different sliding conditions such as plain dry, plain with lubricant and textures with lubricant between the interacting surfaces. The results indicated that the textures with lubricated condition exhibit lower friction and wear compared to other two conditions. Furthermore, it is reported that among the tested samples, the textured sample with number of textures three in sliding direction has shown a prominent effect in reducing friction and wear of parallel sliding contact.

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 Mitigation in Magnesium Alloy AZ80 Processed by Equal Channel Angular Pressing

2011 ◽  
Vol 6 ◽  
pp. 1-11 ◽  
Author(s):  
Yasser Fouad ◽  
Khaled M. Ibrahim ◽  
Brando Okolo
Keyword(s):  
Wear Resistance ◽  
Magnesium Alloy ◽  
Equal Channel Angular Pressing ◽  
Wear Behavior ◽  
Wear Test ◽  
Aging Treatment ◽  
Angular Pressing ◽  
Pin On Disc ◽  
Set Up ◽  
Az80 Alloy

First results of the influence of Equal Channel Angular Pressing (ECAP) on the wear behavior of the magnesium alloy AZ80 have been discussed. The evident grain refinement and redistribution of second phases in the 4 pass processed materials resulted in an increase of the hardness state in the AZ80 alloy. Wear tests conducted on a pin-on-disc set-up revealed better wear resistance for the 4 pass processed materials. Isothermal aging treatment, at 210°C for 10 hrs, of the ECAP processed materials showed that wear resistance properties are improved markedly. For incremental sliding speeds during the wear test, wear rate of the AZ80 alloy was found to increase.

The sliding wear behavior of CrCuFeNi on alloying with cobalt with varying combination

2021 ◽  
Vol 23 (06) ◽  
pp. 729-741
Author(s):  
Kamalakannan R ◽  
◽  
Somasundram A ◽  
Keyword(s):  
Wear Rate ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Single Point ◽  
Testing Machine ◽  
Wear Test ◽  
Muffle Furnace ◽  
Universal Testing ◽  
Before And After ◽  
Pin On Disc

Chromium (Cr), Copper (Cu), Cobalt (Co), Ferrous (Fe) and Nickel (Ni), the HighEntropy Alloys were mixed to form analloy. A die was created using OHNS (OilHardenedNickelSteel).Thealloyed powderwasloadedintothedieandaloadof13KNwas applied. Universal Testing Machine (UTM) was used for the load application. Afterpressing, the specimen was kept inside the Muffle Furnace for heating at 600°C for sintering. After heating, the surface of the specimen was smoothened byroughing. The weight of the specimen was noted, before and after the wear test.The specimen was subjected to wear test in Pin on Disc Machine. Wear rate of thespecimen was calculated. This specimen was used to coat the Single Point Cuttingtool. This coating of tool was done to decrease the wear rate and increase the lifeofthe tool.

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