Effect of Test Machine Dynamics on the Sliding Wear of Alumina

2009 ◽  
pp. 24-24-21 ◽  
Author(s):  
MG Gee
Keyword(s):  
Sliding Wear ◽  
Test Machine ◽  
Machine Dynamics

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.

Wear Testing and Ceramics

1994 ◽  
Vol 208 (3) ◽  
pp. 153-166 ◽  
Author(s):  
M G Gee
Keyword(s):  
Friction And Wear ◽  
Ceramic Materials ◽  
Tribological Performance ◽  
Wear Testing ◽  
Test Machine ◽  
Testing Area ◽  
Machine Dynamics ◽  
Examination Techniques ◽  
Surface Examination

This paper discusses many aspects of wear testing relevant to ceramic materials. It starts with a description of those properties of ceramics that are of particular importance for tribological performance, and then discusses the rationale that underlies wear testing. Some results of the wear of ceramics are discussed, with a particular emphasis on the importance of tribochemical behaviour and on the effect of test machine dynamics. After also discussing surface examination techniques and the pre-standardization work that has been carried out in the friction and wear testing area, the paper concludes with a discussion of future priorities in tribological testing.

Friction behaviors of staple carbon fiber composites

2020 ◽  
Vol 34 (07n09) ◽  
pp. 2040002
Author(s):  
Yi-Ching Cheng ◽  
Chang-Mou Wu ◽  
Po-Chun Lin ◽  
Wen-You Lai ◽  
Po-Hsun Chen ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Sliding Wear ◽  
Wear Test ◽  
Fiber Composites ◽  
Frictional Heat ◽  
Carbon Fiber Composites ◽  
Test Machine ◽  
Frictional Behavior ◽  
Frictional Heat Generation ◽  
Dynamic Friction Coefficient

This study aims to examine the frictional behavior of staple carbon fiber composites (sCFCs). The staple carbon fiber reinforced polycarbonate (PC) composites were prepared by film stacking for two different impregnation levels. Mechanical properties such as tensile and flexural strengths and moduli and static/dynamic friction coefficient (COF) were determined. The COF and temperature as a function of wearing cycles for sCFCs subjected to different applied pressures were also determined by a disk-on-disk sliding wear test machine. The less impregnated sample exhibited superior tribological performance owing to its rough surface and low frictional heat generation.

Corrosive Wear Behavior of Several Materials Coupled with Si3N4 in the Molten Zinc

2010 ◽  
Vol 34-35 ◽  
pp. 1804-1809 ◽  
Author(s):  
Rui Na Ma ◽  
An Du ◽  
Jian Jun Wu ◽  
Xiao Ming Cao
Keyword(s):  
Solid Solution ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Corrosive Wear ◽  
Corrosion And Wear ◽  
Test Machine ◽  
Wear Performance ◽  
Molten Zinc ◽  
Block Column ◽  
Obvious Relation

In continuous hot dip galvanizing, serving parts working in the molten zinc, such as sink roll, sleeves, etc. tend towards degradation and failure due to corrosion and wear. In this paper, corrosive wear performance of several materials, such as boronized，H13，Co-based alloy and Fe-based alloy coupled with Si3N4 is evaluated with the aid of a self-made test machine of block-column sliding wear. Moreover, the corrosive wear mechanism is analyzed. It has been found that these materials suffered not only considerable wear, but also the corrosion of molten zinc. For boronized layer, the wear is the main reason to cause the failure of work parts under the act of the corrosive wear. For H13, the interaction between corrosion and wear plays a very important role on its failure. For those alloys with bad corrosion resistance such as Co-based alloy and Fe-based alloy, both corrosion of solid solution and wear of intermetallic compound act on their failure at the same time. However, the rate of wear shows no obvious relation to the hardness although wear performance is important. The failure greatly lies on the ratio of the hardness of corrosion products to matrix.

The Dry Sliding Wear of Cenosphere -Aluminium Metal Matrix Composite

2014 ◽  
Vol 23 (3) ◽  
pp. 096369351402300 ◽  
Author(s):  
V. Saravanan ◽  
P.R. Thyla ◽  
S.R. Balakrishnan
Keyword(s):  
Sliding Wear ◽  
Research Work ◽  
Wear Test ◽  
Stir Casting ◽  
Critical Parameters ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Test Machine ◽  
Wear Properties

In today's rapidly developing automobile and aeronautical industries, numerous composites are widely used for various applications. This increases the need for continuous research and development of a number of composites. This research work investigated various volume % of cenosphere reinforced AA6063 composites which were made by stir casting method. These composites were surveilled with the help of chemical analysis and scanning electron microscopy to ensure the distribution and bonding between reinforcement and matrix. The design of experiments (DOE) was used to plan the wear tests and the wear results were obtained. The dry sliding wear behaviour of composites was studied by means of a pin-on-disc wear test machine and the results were compared with pure AA6063. The influences of critical parameters such as applied load, sliding speed were evaluated. Enhanced wear properties were observed with addition of cenospheres in aluminium alloy. Disc brake rotor was cast with optimum amount of cenosphere % using sand moulding.

Tribological Behavior of Novel Hybrid Composite Materials Using Taguchi Technique

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
V. C. Uvaraja ◽  
N. Natarajan ◽  
I. Rajendran ◽  
K. Sivakumar
Keyword(s):  
Composite Materials ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Hybrid Composite ◽  
Sliding Wear ◽  
Applied Load ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Test Machine ◽  
Al 6061

Novel Al-6061 hybrid composite materials with varying range of SiC particulate and constant weight percentage of B4C particulate and 1% of magnesium alloy were fabricated by the stir casting technique (liquid metallurgy route). The mechanical and tribological properties of the hybrid composites and that of Al-6061 unreinforced alloy were examined by a Rockwell hardness test machine, pin-on-disc test machine, and Optical Microscope and Scanning Electron Microscope (SEM). A plan of experiment generated through Taguchi's technique was used to conduct experiments based on the L27 orthogonal array. The developed analysis of variance (ANOVA) and the regression equations were used to investigate the influence of parameters like sliding speed, applied load, sliding time, and percentage of reinforcement and their interactions on the dry sliding wear and friction coefficient of the composites. The motto of the present study is ‘the smaller the better’ to identify the optimum conditions for dry sliding wear and the friction coefficient. The results indicate that wear rate and friction coefficient were highly influenced by applied load, sliding speed, percentage of reinforcement and sliding time whereas the interaction between these parameters show only a minor influence in Hybrid Metal Matrix Composites (HMMCs). The wear surface morphology and wear mechanism of the pins were investigated using SEM and were correlated with wear test results. Finally, confirmation tests were carried out to verify the experimental results. It is concluded that Al-6061 hybrid composite can replace the conventional material used in the brake disc of automobiles owing to improved hardness and strength and reduced wear rate.

Wear volume prediction of AISI H13 die steel using response surface methodology and artificial neural network

2020 ◽  
Vol 14 (2) ◽  
pp. 6789-6800
Author(s):  
Vishal Jagota ◽  
Rajesh Kumar Sharma
Keyword(s):  
Neural Network ◽  
Heat Treatment ◽  
Artificial Neural Network ◽  
Response Surface ◽  
Sliding Wear ◽  
Austenitizing Temperature ◽  
Tempering Temperature ◽  
Die Steel ◽  
Artificial Neural ◽  
Tempering Time

Resistance to wear of hot die steel is dependent on its mechanical properties governed by the microstructure. The required properties for given application of hot die steel can be obtained with control the microstructure by heat treatment parameters. In the present paper impact of different heat treatment parameters like austenitizing temperature, tempering time, tempering temperature is studied using response surface methodology (RSM) and artificial neural network (ANN) to predict sliding wear of H13 hot die steel. After heat treating samples at austenitizing temperature of 1020°C, 1040°C and 1060°C; tempering temperature 540°C, 560°C and 580°C; tempering time 1hour, 2hours and 3hours, experimentation on pin-on-disc tribo-tester is done to measure the sliding wear of H13 die steel. Box-Behnken design is used to develop a regression model and analysis of variance technique is used to verify the adequacy of developed model in case of RSM. Whereas, multi-layer feed-forward backpropagation architecture with input layer, single hidden layer and an output layer is used in ANN. It was found that ANN proves to be a better tool to predict sliding wear with more accuracy. Correlation coefficient R2 of the artificial neural network model is 0.986 compared to R2 of 0.957 for RSM. However, impact of input parameter interactions can only be analysed using response surface method. In addition, sensitivity analysis is done to determine the heat treatment parameter exerting most influence on the wear resistance of H13 hot die steel and it showed that tempering time has maximum influence on wear volume, followed by tempering temperature and austenitizing temperature. The prediction models will help to estimate the variation in die lifetime by finding the amount of wear that will occur during use of hot die steel, if the heat treatment parameters are varied to achieve different properties.

AISI 4140 X H13 STEEL SLIDING WEAR BEHAVIOR

2019 ◽  
Author(s):  
Eric Espíndola ◽  
Mateus José Araújo de Souza ◽  
BEATRIZ SEABRA MELO ◽  
Vinicius Silva dos Reis ◽  
Clóvis Santana ◽  
...  
Keyword(s):  
Sliding Wear ◽  
Wear Behavior ◽  
H13 Steel ◽  
Aisi 4140

METHOD FOR LUBRICATED SLIDING WEAR PARTICLE CHARACTERIZATION

2019 ◽  
Author(s):  
Alessandro Augusto Olimpio Ferreira Vittorino ◽  
Túlio Alves Rodrigues ◽  
Marco Aurélio Freitas Santos Júnior ◽  
Washington Martins da Silva Jr.
Keyword(s):  
Sliding Wear ◽  
Wear Particle ◽  
Particle Characterization ◽  
Lubricated Sliding
Sign in / Sign up

Export Citation Format

Share Document