Development of Temperature-controlled and Humidity-controlled three-body Abrasive Wear Testing Machine based on MLD-10 Dynamic Abrasive Wear Testing Machine

Soft and hard FeCrNiSi alloy coatings were obtained on 30CrMo alloy steel surface by laser cladding. The phase constitution, microstructure, frictional wear behavior and corrosion resistance of the composite coating were analyzed using X-ray diffraction (XRD), scanning electron microscope (SEM), three-dimensional non-contact surface mapping, friction and wear testing machine and electrochemical workstation, separately. XRD analysis showed that the cladding layer was mainly composed of Fe-based alloy composition, accompanied by a small amount of cobalt nickel alloy. There were massive protrusions in the interface of the soft sample, and the coating was regularly dendritic. Hard sample coating lines were cluttered, and there was no bulk deposition. Under the same wear condition, the soft coating exhibited serious abrasive wear, while the hard coating had slight abrasive wear behavior. The polarization curves in 3%NaCl solution revealed that the self-corrosion potential of the soft coating was positive shifted more than that the hard coating. The soft coating has better corrosion resistance than the hard coating.

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Effect of impact energy on wear behavior of high chromium white iron produced by liquid die forging

MATEC Web of Conferences ◽

10.1051/matecconf/201820703011 ◽

2018 ◽

Vol 207 ◽

pp. 03011

Author(s):

B Qiu ◽

S M Xing ◽

Q Dong ◽

H Liu

Keyword(s):

Abrasive Wear ◽

Impact Energy ◽

Wear Behavior ◽

Testing Machine ◽

Wear Testing ◽

Volume Loss ◽

White Iron ◽

High Chromium ◽

Die Forging ◽

The Impact

Impact abrasive wear behavior of high chromium white iron (HCWI) produced by liquid die forging process were investigated. the wear tests were performed with the MLD-10 abrasive wear testing machine, using SiO2 abrasive and with four impact energies of 1.5 J, 2.5 J, 3.5 J and 4.5 J for 120 min. The results indicated that the cumulative volume loss of HCWI sample increases with the growth of impact energy, and exhibits best wear resistance under low impact condition. For given impact energy, the volume loss increases with the increasing of wear time, which shown an approximately liner tendency. The macro-morphologies, SEM images of worn surface and cross-sectional images of wear samples were observed by optical microscope and SEM, and the wear mechanism and characteristics were analyzed. Results shown that the wear characteristics is mainly based on the shallow ploughing and accompanied by plastic deformation under lower impact energy, while the fatigue peeling and embedded abrasive become the most significant characteristics when the impact energy is higher.

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The Forecast for the Abrasive Wear of Metal Materials Aginst Plant Abrasive Based on the Grey Markov Model

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.130-134.984 ◽

2011 ◽

Vol 130-134 ◽

pp. 984-988

Author(s):

Xiao Peng Huang ◽

Jian Long Huang ◽

Jing Feng Wu ◽

Ke Ping Zhang

Keyword(s):

Abrasive Wear ◽

Testing Machine ◽

The State ◽

Wear Testing ◽

Wear Loss ◽

Grey Theory ◽

Markovian Model ◽

Wear Prediction ◽

Wear Process ◽

Metal Materials

Metal materials wear loss against plant abrasive of different wear process was obtained by simulation test on the abrasive wear testing machine. On the basis of it, the GM (1, 1) model is established by using grey theory. Then the state of experiment data is divided using markov chain, the state transition matrix is constructed, finally the grey markovian model is established and wear prediction of metal materials against plant abrasive is gained. The results indicate that wear prediction based on the grey markovian model is more precise than the GM (1, 1), model, relative error being only 1.13%

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DEVELOPMENT OF RUBBER WHEEL ABRASION TESTING MACHINE FOR ESTIMATION OF THREE BODY ABRASIVE WEAR OF AUTOMOBILE COMPONENTS

International Journal on Design and Manufacturing Technologies ◽

10.18000/ijodam.70143 ◽

2015 ◽

Vol 9 (1) ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

Namdeo Rajeev ◽

Tiwari Sudhir ◽

Manepatil Smita

Keyword(s):

Abrasive Wear ◽

Testing Machine ◽

Automobile Components ◽

Three Body ◽

Abrasion Testing

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Research on the Friction and Wear Properties of the NBR under Dry Sliding and Water Lubrication

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.420.234 ◽

2013 ◽

Vol 420 ◽

pp. 234-239

Author(s):

Feng Yan Yang ◽

Shi Jie Wang ◽

Xiao Ren Lv

Keyword(s):

Friction Coefficient ◽

Abrasive Wear ◽

Coefficient Of Friction ◽

Testing Machine ◽

Water Lubrication ◽

Wear Testing ◽

Wear Loss ◽

Dry Sliding ◽

Wear Properties ◽

Lubrication Performance

The wear mechanisms of different graphite contents of NBR by 45# steel under dry sliding and water lubrication were investigated. On MPV-600 computer-controlled abrasive wear testing machine, the coefficients of friction were measured continuously. Results showed that under dry sliding condition, the rubber wear loss is big, the coefficient of friction is higher, the temperature of the friction surface is rise obviously. Wear loss and friction coefficient of NBR decrease with the increase of graphite contents; With the increase of graphite contents wear loss and the friction coefficient decreases, and is mainly due to the graphite lubrication performance and increase the stiffness of the rubber contact area. At low content of graphite, adhesive wear of NBR is showed, in the high content of graphite, abrasive wear is showed. Water lubrication condition, wear surface level off, the wear loss is very small, and the lubrication and cooling effect of water makes the friction coefficient decrease. Graphite content is higher, the wear loss and coefficient of friction is smaller.

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Microstructural Evolution and Wear Behavior Involving the K-Carbides Precipitation of a Fe-25Mn-6.6Al-1.3C Austenitic Steel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.941.668 ◽

2018 ◽

Vol 941 ◽

pp. 668-673 ◽

Cited By ~ 1

Author(s):

Yi Fan Feng ◽

Ren Bo Song ◽

Zhong Zheng Pei ◽

Lun Li

Keyword(s):

Heat Treatment ◽

Abrasive Wear ◽

Austenitic Steel ◽

Microstructural Evolution ◽

Abrasion Resistance ◽

Testing Machine ◽

Solution Treatment ◽

Aging Treatment ◽

Wear Testing ◽

The Impact

In this paper, the microstructural evolution and mechanical properties of the as-cast Fe-25Mn-7Al-1.3C austenitic steel after different heat treatment were investigated. After solution treatment and subsequent aging treatment, the κ-carbides with perovskite structure were found to precipitate coherently within the austenite matrix, which improved the initial hardness and mechanical strength. The experimental steel exhibited an optimal comprehensive performance after being solution treated at 1050 °C for 1 h and then aged at 550 oC for 2 h. The tensile strength was 751 MPa, the yield strength was 581 MPa, the elongation was 48%, the hardness was 252 HB, and the Charpy V-notch impact toughness was 168 J, respectively. The impact wear test was carried out on MLD-10 abrasive wear testing machine, and the worn out surfaces under different heat treatment were characterized by scanning electron microscopy (SEM). The results indicated that the abrasion resistance of the steel under the additional aging treatment was better than that of the as-solutionized steel. The optimal abrasion resistance was obtained after being soluted at 1050 °C for 1 h and then aged at 550 oC for 2 h. However, with the aging time increasing, the coarse κ-carbides precipitating around the grain boundaries would deteriorate toughness, which lead to increase of the abrasive wear volume loss. Besides, obvious micro-cracking and relatively larger peeling pit were observed.

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Abrasive Wear Performance of Aluminium Modified Epoxy-Glass Fiber Composites

Journal of Molecular and Engineering Materials ◽

10.1142/s2251237315500057 ◽

2015 ◽

Vol 03 (03n04) ◽

pp. 1550005 ◽

Cited By ~ 1

Author(s):

Vikram G. Kamble ◽

Punyapriya Mishra ◽

Hassan A. Al Dabbas ◽

H. S. Panda ◽

Johnathan Bruce Fernandez

Keyword(s):

Abrasive Wear ◽

Glass Fiber ◽

Wear Behavior ◽

Fiber Composite ◽

Matrix Material ◽

Testing Machine ◽

Wear Testing ◽

Aluminum Particles ◽

Pin On Disc ◽

Modified Epoxy

For a long time, Aluminum filled epoxies molds have been used in rapid tooling process. These molds are very economical when applied in manufacturing of low volume of plastic parts. To improve the thermal conductivity of the material, the metallic filler material is added to it and the glass fiber improves the wear resistance of the material. These two important parameters establish the life of composites. The present work reports on abrasive wear behavior of Aluminum modified epoxy and glass fiber composite with 5 wt.% and 10 wt.% of aluminum particles. Through pin on disc wear testing machine, we studied the wear behaviors of composites, and all these samples were fabricated by using hand layup process. Epoxy resin was used as matrix material which was reinforced with Glass fiber and Aluminum as filler. The composite with 5 wt.% and 10 wt.% of Al was cast with dimensions 100 × 100 × 6 mm. The specimens were machined to a size of 6 × 6 × 4 mm for abrasive testing. Abrasive tests were carried out for different grit paper sizes, i.e., 150, 320, 600 at different sliding distance, i.e., 20, 40, 60 m at different loads of 5, 10 and 15 N and at constant speed. The weight loss due to wear was calculated along with coefficient of friction. Hardness was found using Rockwell hardness machine. The SEM morphology of the worn out surface wear was analyzed to understand the wear mechanism. Results showed that the addition of Aluminum particles was beneficial for low abrasive conditions.

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Structural Transformation of High Vanadium High Speed Steel during Tempering and its Influence on Abrasive Wear Performance of the Material

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.416.443 ◽

2009 ◽

Vol 416 ◽

pp. 443-448 ◽

Cited By ~ 2

Author(s):

Hui Min Chen ◽

Liu Jie Xu ◽

Shi Zhong Wei

Keyword(s):

Wear Resistance ◽

Abrasive Wear ◽

Retained Austenite ◽

High Speed ◽

Testing Machine ◽

High Speed Steel ◽

Wear Test ◽

Wear Testing ◽

Tempering Temperature ◽

Wear Performance

The expansion curves during the procedure of continuous cooling which high vanadium high speed steel (HSS) was tempered with 250°C, 550°C and 600°C after 1050°C quenching were determined by the Gleeble-1500D thermal simulation test device, and the curves were analyzed subsequently. The hardness and microstructure of high vanadium HSS under different tempering temperatures were analyzed by means of SEM, TEM and X-ray diffraction, and the influence of tempering temperature on the hardness and retained austenite were discussed. At the same time, the wear resistance of the material at different tempering temperatures was studied by the HST-100 friction wear testing machine, and the influence of microstructure on wear resistance was analyzed further. The studies show that the structures are not transformed at 250°C tempering with cooling rate of 0.5°C/s; The retained austenite transformed to martensite at about 390°C when 550°C and 600°C tempering. Wear test shows that the abrasive wear performance is excellent with 550°C tempering after 1050°C quenching because of the decrease of the amount of retained austenite, therefore the heat treatment of 550°C tempering after quenching of high vanadium HSS is optimal.

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