scholarly journals Micro Hardness and Erosive Wear Behavior of Tungsten Carbide Filled Epoxy Polymer Nano Composites

2020 ◽  
Vol 5 (3) ◽  
pp. 405-415
Author(s):  
M. Kameswara Reddy ◽  
V. Suresh Babu ◽  
K. V. Sai Srinadh
Keyword(s):  
Tungsten Carbide ◽  
Polymer Nanocomposites ◽  
Adhesive Bonding ◽  
Epoxy Polymer ◽  
Wear Behavior ◽  
Erosive Wear ◽  
Nano Composites ◽  
Erosion Wear ◽  
Wear Properties ◽  
The Matrix

The present work studies the tribological performance of Tungsten Carbide (WC) nanoparticles reinforced epoxy polymer nanocomposites. Polymer nanocomposites are prepared by hand lay-up method. Erosive wear and hardness tests were conducted to examine the physical and wear properties of epoxy/WC nanocomposites. Addition of WC nanoparticles led to significant reduction in erosion rate. In addition to that, incorporation of WC nanoparticles enhanced the hardness of epoxy nano composites. At 2% weight of WC nano filler, nanocomposites showed better performance in erosion wear properties and also in hardness. While at 3wt% of WC filler, least performance in hardness was caused by the weak adhesive bonding between the matrix and filler. The nature of erosion wear behavior was observed. Finally worn surfaces of nanocomposites were inspected using a “scanning electron microscope (SEM)”.

Investigation on Effect of Fibre Volume and Fiber Orientation on Erosive Wear Behavior of Carbon Fiber Reinforced Epoxy (CFRP) Composites

2019 ◽  
Vol 969 ◽  
pp. 134-139 ◽  
Author(s):  
Mylarapu Kameswara Reddy ◽  
V. Suresh Babu ◽  
K.V. Sai Srinadh
Keyword(s):  
Polymer Composites ◽  
Fiber Orientation ◽  
Erosion Rate ◽  
Epoxy Polymer ◽  
Wear Behavior ◽  
Erosive Wear ◽  
Processing Parameters ◽  
Fibre Volume ◽  
Wear Properties ◽  
Fiber Volume

This paper investigates erosive wear properties of carbon-epoxy polymer composites. Hand layup technique was employed to fabricate the composite specimens. Sand erosion properties of carbon/epoxy polymer composites were examined by changing testing parameters such as varying angle of impact (300,450,600 and 900), velocity of impact of sand particles (48m/s and 70m/s) and Stand-Off distance (5mm and10mm); and also by changing composite processing parameters such as fiber volume (20%, 25%, and 30%) and fiber orientation (300,600 and 900). Irrespective of fiber volume and fiber orientation, rate of erosion shows increasing tendency, with increase of impact velocity. It was observed that with increase in fiber volume, erosion rate increases and where fiber orientation is concerned, increase of fiber orientation leads to increase in erosion rate. Irrespective of fiber orientation and fiber volume, Increase of Stand-Off distance leads to decrease in erosion rate. Finally the eroded surface morphology was observed by using SEM.

Effect of High Temperature on Wear Behavior of Stir Cast Aluminium/Boron Carbide Composites

2020 ◽  
Vol 22 (4) ◽  
pp. 1031-1046
Author(s):  
X. Canute ◽  
M. C. Majumder
Keyword(s):  
High Temperature ◽  
Wear Rate ◽  
Boron Carbide ◽  
Wear Behavior ◽  
Base Alloy ◽  
Weight Fraction ◽  
Sliding Velocity ◽  
Wear Properties ◽  
High Temperature Wear ◽  
The Matrix

AbstractThe need for development of high temperature wear resistant composite materials with superior mechanical properties and tribological properties is increasing significantly. The high temperature wear properties of aluminium boron carbide composites was evaluated in this investigation. The effect of load, sliding velocity, temperature and reinforcement percentage on wear rate was determined by the pin heating method using pin heating arrangement. The size and structure of base alloy particles change considerably with an increase of boron carbide particles. The wettability and interface bonding between the matrix and reinforcement enhanced by the addition of potassium flurotitanate. ANOVA technique was used to study the effect of input parameters on wear rate. The investigation reveals that the load had higher significance than sliding velocity, temperature and weight fraction. The pin surface was studied with a high-resolution scanning electron microscope. Regression analysis revealed an extensive association between control parameters and response. The developed composites can be used in the production of automobile parts requiring high wear, frictional and thermal resistance.

Microstructure and Wear Properties of In Situ TiC-Cr7C3/Fe Surface Composite

2011 ◽  
Vol 415-417 ◽  
pp. 170-173
Author(s):  
Jing Wang ◽  
Si Jing Fu ◽  
Yi Chao Ding ◽  
Yi San Wang
Keyword(s):  
Sliding Wear ◽  
Wear Behavior ◽  
Wear Test ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Test Machine ◽  
Wear Properties ◽  
Surface Composite ◽  
The Matrix

A wear resistant TiC-Cr7C3/Fe surface composite was produced by cast technique and in-situ synthesis technique. The microstructure and dry-sliding wear behavior of the surface composite was investigated using scanning electron microscope(SEM), X-ray diffraction(XRD) and MM-200 wear test machine. The results show that the surface composite consists of TiC and Cr7C3as the reinforcing phase, α-Fe and γ-Fe as the matrix. The surface composite has excellent wear-resistance under dry-sliding wear test condition with heavy loads.

Research on Dynamic Erosion Wear Behavior of HVOF Sprayed Nanostructured WC-12Co Coating

2013 ◽  
Vol 634-638 ◽  
pp. 2997-3001
Author(s):  
Yan Liu ◽  
Hui Chen ◽  
Guo Qing Gou ◽  
Ming Jing Tu
Keyword(s):  
Wear Behavior ◽  
High Hardness ◽  
Layer By Layer ◽  
Erosion Wear ◽  
Wear Properties ◽  
Hvof Spraying ◽  
Simulating Experiment ◽  
Petroleum Chemical ◽  
Erosion Test ◽  
Oxygen Fuel

Erosion wear is an important failure mode existing in hydropowder, petroleum, chemical industry and other fields. Nanostructured WC-Co materials possess excellent erosion wear resistance due to their outstanding combination of high hardness and excellent fracture toughness. Nanostructured WC-12Co coating was prepared by means of High Velocity Oxygen Fuel (HVOF) spraying technology in this research. The simulating experiment system was developed to study the erosion wear properties. The corundum sand with main composition of Al2O3 was used to investigate the dynamic erosion properties of nanostructured WC-12Co coating. The dynamic failure mechanism of the coatings was also analyzed by Scanning Electron Microscope (SEM). The results show that the coating is worn layer by layer in the erosion test. The bonding between the layers and the thickness of the coating should be increased to elongate the coating life.

Diamond coatings on tungsten carbide and their erosive wear properties

2001 ◽  
Vol 135 (2-3) ◽  
pp. 126-138 ◽  
Author(s):  
S Amirhaghi ◽  
H.S Reehal ◽  
R.J.K Wood ◽  
D.W Wheeler
Keyword(s):  
Tungsten Carbide ◽  
Erosive Wear ◽  
Diamond Coatings ◽  
Wear Properties

Mechanical properties of tungsten carbide nanoparticles filled epoxy polymer nano composites

2020 ◽  
Vol 26 ◽  
pp. 2711-2713
Author(s):  
M. Kameswara Reddy ◽  
V. Suresh Babu ◽  
K.V. Sai Srinadh ◽  
M Bhargav
Keyword(s):  
Mechanical Properties ◽  
Tungsten Carbide ◽  
Epoxy Polymer ◽  
Nano Composites

Wear Properties of Nanoclay Modified Basalt Fibre Composites Under Dry Adhesive Sliding, Two-body Abrasive and Slurry Pot Erosive

2021 ◽  
Author(s):  
Anis Adilah Abu Talib ◽  
Aidah Jumahat ◽  
Mohammad Jawaid ◽  
Napisah Sapiai ◽  
Nagarajan Rajini
Keyword(s):  
Wear Rate ◽  
Wear Behavior ◽  
Erosive Wear ◽  
Coarse Sand ◽  
Specific Wear Rate ◽  
Wear Properties ◽  
Basalt Fibre ◽  
Dry Adhesive ◽  
Sand Mixture ◽  
Fibre Reinforced Polymer

Abstract This paper reports the effect of 1.0 wt%, 3.0 wt% and 5.0 wt% nanoclay loadings on specific wear rate properties of basalt fibre reinforced polymer (BFRP) composites. The specific wear rate properties of the BFRP composites were analysed at three different wear conditions, i.e. dry adhesive sliding, two-body abrasion and slurry pot erosion in which the composites slide against smooth steel, rough silicon carbide and medium coarse sand mixture, respectively. The operating parameters for the wear tests were set at 30 N load, 300 rpm speed and 10 km distance. The results demonstrated that nanoclay incorporation enhanced the adhesive and erosive wear properties of BFRP composites up to 32% and 51%, respectively. In contrast, nanoclay incorporation deteriorated the abrasive wear properties of BFRP with increasing in nanoclay loading. The morphology of worn surfaces was evaluated using scanning electron microscopy (SEM) to study the wear behavior of the nanoclay modified BFRP composites. It concluded that nanoclay incorporation exhibited significant influence on wear properties of the polymer composites depending on the wear environment condition.

Study on Erosion Wear Property of Nickel-Chromium Cast Iron

2013 ◽  
Vol 575-576 ◽  
pp. 535-538
Author(s):  
Jing Pei Xie ◽  
Li Jun Zhang ◽  
Ai Qin Wang ◽  
Xing Hai Shao
Keyword(s):  
Cast Iron ◽  
Wear Behavior ◽  
Strong Acid ◽  
Impact Angle ◽  
Homogeneous Distribution ◽  
Test Machine ◽  
Wear Property ◽  
Erosion Wear ◽  
The Matrix ◽  
The Impact

The influences of the impact angle and the corrosive agent acidity on low-chromium and nickel contained cast iron were studied in the behavior of erosion wear. The wear rule was summarized and the mechanics of the erosion wear behavior were analyzed in this thesis. Erosion wear experiments were carried on MCF-30 erosion test machine, and then the structure and surface morphology of the samples were analyzed by Scanning Electron Microscopy (SEM). The results showed that the alloy carbide (Fe, Cr)3C was generated by a kind of reticulate distribution in the matrix after oil quench at 960°C and temper at 250°C. The continuous and homogeneous distribution, just like the skeleton of the material, enhanced the wear resistance. The shape of erosion wear curve was M at different impact angles. The biggest wear rate occurred at a 60-degree impact angle. The erosion wear property was greatly affected by the strong acid, but it can be ignored when pH3.

Pin Temperature and Al2O3 Fillings Effect on Sliding Wear Characteristics of Al–25Zn/Al2O3 Composites

2021 ◽  
pp. 135065012110251
Author(s):  
Parmeshwar P Ritapure ◽  
Yashwant R Kharde ◽  
Rashmi G Yadav ◽  
Suyash Y Pawar ◽  
Bharat D Aldar
Keyword(s):  
Material Removal ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Matrix Alloy ◽  
Stir Casting ◽  
Good Precision ◽  
Wear Properties ◽  
Casting Technique ◽  
Mechanical And Tribological Properties ◽  
The Matrix

This investigation studied the effect of Al2O3 reinforcement on sliding wear (dry) characteristics of Al–25Zn/Al2O3 composites at various temperatures, speeds, and loads applied for 1400 m sliding distances as per the Taguchi L16 orthogonal array using a tribometer with an Emergency Number24 shaft steel disk. Al–25Zn alloy-based composites reinforced with 10, 15, and 20 wt% of Al2O3 particles were fabricated by the stir casting technique. The results show a significant alteration in mechanical and tribological properties with reinforcement of Al2O3 content. The optimum mechanical and sliding wear properties are seen for the composite with 10 wt% of Al2O3. The material removal in the matrix alloy is due to adhesion and in composites mainly due to abrasion and delamination. The developed regression model and the artificial neural network model can forecast the composite's wear behavior with good precision.

Growth and Erosive Wear Properties of MPCVD Diamond Coatings on Sintered Tungsten Carbide Substrates

1998 ◽  
Vol 555 ◽  
Author(s):  
S. Amirhaghi ◽  
H. S. Reehal ◽  
R. J. K. Wood ◽  
D. W. Wheeler
Keyword(s):  
Tungsten Carbide ◽  
Microwave Plasma ◽  
Erosive Wear ◽  
Diamond Coatings ◽  
Wear Properties ◽  
Erosion Testing ◽  
Sintered Tungsten ◽  
Sand Erosion ◽  
Microwave Plasma Cvd ◽  
Pre Treatment

AbstractAdherent diamond coatings up to ∼35 um thick have been grown by microwave plasma CVD (MPCVD) on sintered tungsten carbide (WC) substrates and their erosive wear properties investigated under high velocity air-sand erosion testing. Two different sintered tungsten carbide (WC) substrates have been investigated and compared, the binder being either 6%Co or 5%Ni by weight. Coating properties are sensitive functions of surface pre-treatment and deposition procedures. Adherent coatings offer significantly better erosion resistance compared to uncoated substrates, with the erosion rate being lower by up to a factor between ∼5 and 20 for particle test velocities of 148 ms-1 and 63 ms-1 respectively. Films with low residual stress appear to exhibit longer times to failure which tends to occur catastrophically along the coating-substrate interface.

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