A Comparative Study of the Results Obtained through Different Types of Wear Tests

2012 ◽  
Vol 730-732 ◽  
pp. 951-956
Author(s):  
Ana García ◽  
Laura Ferreiro ◽  
Angel Varela ◽  
José Luís Mier ◽  
Carolina Camba ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Comparative Study ◽  
Wear Test ◽  
Operating Conditions ◽  
Test Standards ◽  
Different Types ◽  
Dry Sand ◽  
Pin On Disk ◽  
Wear Tests

Wear is one of the most worrying problems in industry; it affects many production sectors. Therefore, the wear resistance of materials must be assessed in order to predict their response and anticipate possible failures. Maintenance could then be scheduled accordingly. Due to the large number of situations where wear is important, one of the main complications in tribology is that it is difficult to replicate in a laboratory the precise conditions of service. Thus, there is a need to choose between different kinds of tests to simulate actual conditions. However, this aim is difficult to achieve, as variables and conditions of service are numerous. In this situation, it is neither practical nor possible to have as many test devices in the laboratory as real possibilities. It is necessary to find a test that can be extrapolated to many possible situations. An important question is if the results obtained with different configurations simulated in the laboratory are good equivalents or, on the contrary, the choice of method has an influence and to what extent the latter case is true. In addition, it should be noted that wear test standards mention how difficult it is to reproduce results and how they are influenced by operating conditions In this paper, three wear tests methods are studied- the pin-on-disk, dry sand/rubber wheel test and wet sand/rubber wheel- in order to find a relationship between the results obtained by them. Furthermore, different techniques are analysed to establish, if possible, which ones are more likely to achieve more reliable results.

Wear Characteristics of Low Temperature Degradation-Free Zirconia/Alumina Composites in a Point Contact Condition

2007 ◽  
Vol 342-343 ◽  
pp. 557-560
Author(s):  
Kwon Yong Lee ◽  
Hwan Kim ◽  
D.W. Kim ◽  
Dae Joon Kim ◽  
Myung Hyun Lee ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Low Temperature ◽  
Bovine Serum ◽  
Sliding Wear ◽  
Point Contact ◽  
Dry Sliding Wear ◽  
Sliding Motion ◽  
Alumina Composites ◽  
Pin On Disk ◽  
Wear Tests

The sliding wear of four different compositions of novel low temperature degradation-free zirconia/alumina (LTD-free Z/A) composites were characterized in a ceramicceramic point contact pair. The wear tests were performed by a pin-on-disk type wear tester in a linear reciprocal sliding motion with a point contact in both dry and bovine serum lubricated conditions at room temperature. For the dry sliding wear tests, AZ-2 (20 vol% (Y,Nb,Ce)-TZP/ 80 vol% Al2O3) showed the best wear resistance among four kinds of LTD-free Z/A composites. For the bovine serum lubricated sliding wear tests, wear was too little to be measured for all kinds of Z/A composites. These novel LTD-free Z/A composites having excellent wear resistance demonstrated a potential as the alternative materials for the ceramic- ceramic contact pairs of femoral head and acetabular liner in total hip replacement.

Transparent Pin Wear Test on Thin-Film Magnetic Disk

1995 ◽  
Vol 117 (2) ◽  
pp. 297-301 ◽  
Author(s):  
Youichi Kawakubo ◽  
Yotsuo Yahisa
Keyword(s):  
Thin Film ◽  
Wear Debris ◽  
Wear Test ◽  
Video Camera ◽  
Video Monitoring ◽  
Friction Measurement ◽  
Magnetic Disks ◽  
Bulk Hardness ◽  
Pin On Disk ◽  
Wear Tests

Pin-on-disk wear tests on thin-film magnetic disks were performed using transparent materials. Quartz glass (QG), transparent zirconia (TZ), sapphire (SA), and synthesized diamond (DI) were used as pin materials. In addition to friction, sliding condition and pin wear were continuously monitored with video camera. Simultaneous friction measurement and video monitoring showed that friction dropped when wear debris intruded between pin and disk surfaces. Pin wear, from the measured diameter of wear scar on spherical pins, increased in the order of DI, SA, QG, and TZ. This order of pin wear does not coincide with that of the pin bulk hardness. Disk lifetime increased in the order of TZ, QG, SA, and DI, and the smaller the pin wear, the longer the disk lifetime.

Wear resistance of maraging steel developed by direct metal laser sintering

2020 ◽  
Vol 10 (7) ◽  
pp. 1079-1090 ◽  
Author(s):  
Gulam Mohammed Sayeed Ahmed ◽  
Irfan Anjum Badruddin ◽  
Vineet Tirth ◽  
Ali Algahtani ◽  
Mohammed Azam Ali
Keyword(s):  
Wear Resistance ◽  
Wear Rate ◽  
Maraging Steel ◽  
Normal Load ◽  
Testing Machine ◽  
Wear Test ◽  
Laser Sintering ◽  
Wear Testing ◽  
Direct Metal Laser Sintering ◽  
Wear Tests

This work presents wear study on maraging steel developed by additive manufacturing using Direct Metal Laser Sintering, utilizing a laser beam of high-power density for melting and fusing the metallic powders. Short aging treatment was given to the specimen prior to the wear tests. The density and the hardness of the 3D printed maraging steel were found to be better than the homogenized-aged 18Ni1900 maraging steel. The wear resistance is an important aspect that influences the functionality of the components. The wear tests in dry condition were performed on maraging steel on pin/disc standard wear testing machine. The design of experiments was planned and executed based on response surface methodology. This technique is employed to investigate three influencing and controlling constraints namely speed, load, and distance of sliding. It has been observed that sliding speed and normal load significantly affects the wear of the specimen. The statistical optimization confirms that the normal load, sliding distance, and speed are significant for reducing the wear rate. The confirmation test was conducted with a 95% confidence interval using optimal parameters for validation of wear test results. A mathematical model was developed to estimate the wear rate. The experimental results were matched with the projected values. The wear test parameters for minimum and maximum wear rate have been determined.

Ion Implanted Ti-6Al-4V

1983 ◽  
Vol 27 ◽  
Author(s):  
W. C. Oliver ◽  
R. Hutchings ◽  
J. B. Pethica ◽  
E. L. Paradis ◽  
A. J. Shuskus
Keyword(s):  
Wear Resistance ◽  
Ion Implantation ◽  
Titanium Alloys ◽  
Driving Forces ◽  
Wear Behavior ◽  
Concentration Profiles ◽  
Pin On Disk ◽  
Wear Tests ◽  
Ion Implanted

ABSTRACTTitanium and many of its alloys show very poor wear resistance considering their hardness. This together with high thermodynamic driving forces to form very hard compounds between titanium and nitrogen or carbon made titanium based alloys obvious candidates for ion implantation. In this paper the effects of similar implanted concentration profiles of nitrogen and carbon in two titanium alloys are compared. The wear behavior of pin on disk wear tests are reported along with the ultramicrohardness of the four samples.

Tribological Studies of Ion-Implanted Steel Constituents Using an Oscillating Pin-on-Disk Wear Tester

1990 ◽  
Vol 112 (1) ◽  
pp. 27-34 ◽  
Author(s):  
R. Wei ◽  
P. J. Wilbur ◽  
W. S. Sampath ◽  
D. L. Williamson ◽  
Yi Qu ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Elevated Temperatures ◽  
Adhesive Wear ◽  
Wear Testing ◽  
304 Stainless Steel ◽  
Test Machine ◽  
Aisi 304 ◽  
High Doses ◽  
Pin On Disk ◽  
Wear Tests

Wear tests of ferrite (pure α-Fe) and austenite (AISI 304 stainless steel) implanted with nitrogen have been conducted using a unique oscillating pin-on-disk test machine. The results show that nitrogen implantation at elevated temperatures to high doses dramatically improves the adhesive wear resistance of ferrite and the critical load at which the wear mechanism changes from mild to severe adhesive wear for austenite. The wear resistance of nitrogen implanted ferrite is determined by the nitride formed. Ranked from most to least wear resistant the nitrides observed are γ’-Fe4N, ε-Fe3N, and ζ-Fe2N. No evidence of nitride break-up and attendant nitrogen migration during wear testing is found. Nitrogen does diffuse into both ferrite and austenite rapidly when they are implanted at an elevated temperature and this enhances their wear resistances.

scholarly journals Influence of Titanium on Crystallization and Wear Resistance of High Chromium Cast Iron

2016 ◽  
Vol 16 (1) ◽  
pp. 117-123 ◽  
Author(s):  
A. Studnicki ◽  
R. Dojka ◽  
M. Gromczyk ◽  
M. Kondracki
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Primary Crystallization ◽  
High Chromium ◽  
High Chromium Cast Iron ◽  
Pin On Disk ◽  
Chromium Cast Iron ◽  
Disk Method ◽  
Wear Tests

Abstract Paper presents the results of studies on primary crystallization and wear resistance of high chromium cast iron inoculated with ferrotitanium intended for work in abrasive conditions. Primary crystallization was examined with use of TDA method, wear tests of the samples were conducted using the modified pin-on-disk method.

Wear of Low Temperature Degradation-Free Zirconia/Alumina Composites in a Ceramic-Ceramic Contact Pair

2006 ◽  
Vol 309-311 ◽  
pp. 1265-1268 ◽  
Author(s):  
Kwon Yong Lee ◽  
Hwan Kim ◽  
Dae Joon Kim ◽  
Myung Hyun Lee ◽  
Won Seon Seo
Keyword(s):  
Wear Resistance ◽  
Low Temperature ◽  
Bovine Serum ◽  
Sliding Wear ◽  
Contact Pair ◽  
Dry Sliding Wear ◽  
Sliding Motion ◽  
Alumina Composites ◽  
Pin On Disk ◽  
Wear Tests

The sliding wear behaviors of three different compositions of novel low temperature degradation-free zirconia/alumina (LTD-free Z/A) composites were examined in a ceramicceramic contact pair. The wear tests were performed by using a pin-on-disk type wear tester in a linear reciprocal sliding motion with a line contact in both dry and bovine serum lubricated conditions at room temperature. From the results of dry sliding wear tests, Z/A#1 ((5.3Y,4.6Nb)-TZP/80 vol% Al2O3) showed the best wear resistance among three kinds of LTD-free Z/A composites. For the bovine serum lubricated sliding wear tests, wear was too little to be measured for all kinds of Z/A composites. These novel LTD-free Z/A composites having excellent wear resistance demonstrated a potential as the alternative materials for the ceramicceramic contact pairs of femoral head and acetabular liner in total hip replacement.

scholarly journals Tribological investigation of multilayer CrN/CrCN/TaN films deposited by close field unbalanced magnettron sputtering

2019 ◽  
Vol 58 (1) ◽  
pp. 271-279 ◽  
Author(s):  
Erkan Bahce ◽  
Nese Cakir
Keyword(s):  
Wear Test ◽  
High Hardness ◽  
Scratch Test ◽  
Adhesion Properties ◽  
Cocrmo Alloy ◽  
Unbalanced Magnetron Sputtering ◽  
Unbalanced Magnetron ◽  
Pin On Disc ◽  
Pin On Disk ◽  
Wear Tests

AbstractCrN/CrCN/TaN multilayer films were deposited onto the CoCrMo alloy substrates at different number layers as two, four and 8 layers by close-field unbalanced magnetron sputtering method. Microstructure and the tribo-logical properties of the films were characterized by XRD, SEM, pin-on-disk wear test, scratch test, micro hardness. CrN/CrCN/TaN multilayer coatings exhibited good adhesion properties on the CoCrMo alloy substrate. A very high hardness value of 60 GPa was obtained for 8 multilayered coating. As a result of the pin-on-disc wear tests, it was found that the tribological properties of the CoCrMo alloy were enhanced by coating its surface with this architecture by using close-field unbalanced magnetron system with used parameters.

TRIBOLOGICAL PROPERTIES OF POLYURETHANES IN ABRASIVE SOIL MASS

Tribologia ◽  
2017 ◽  
Vol 276 (6) ◽  
pp. 65-70 ◽  
Author(s):  
Jerzy NAPIÓRKOWSKI ◽  
Jerzy LIGIER
Keyword(s):  
Wear Resistance ◽  
Comparative Study ◽  
Tribological Properties ◽  
Soil Mass ◽  
Natural Soil ◽  
Chemical Compositions ◽  
Reference Standard ◽  
Relative Wear ◽  
Relative Wear Resistance ◽  
Wear Tests

This paper presents a comparative study of polyurethane wear in abrasive soil mass. Two types of polyurethanes of various chemical compositions and untreated 38GSA steel were tested, the latter being used as a reference standard. The study was conducted in a natural soil mass at a “rotating bowl” stand. Relative wear resistance was determined from measurements of mass wear for the materials under study. The conditions of the surface of the materials under wear tests were analysed.

Semisolid Processing of Al-Sn-Cu Alloys for Bearing Applications

2012 ◽  
Vol 192-193 ◽  
pp. 562-568 ◽  
Author(s):  
Annalisa Pola ◽  
Lorenzo Montesano ◽  
Marcello Gelfi ◽  
Roberto Roberti
Keyword(s):  
Wear Resistance ◽  
Semisolid Processing ◽  
Globular Microstructure ◽  
Cu Alloys ◽  
Pin On Disk ◽  
Wear Tests ◽  
Microstructural Homogeneity ◽  
Conventionally Cast

The aim of this work was to evaluate the advantages in using semisolid processing of Al-Sn alloys in order to improve microstructural homogeneity and, consequently, wear resistance. Different tests were performed on an Al3Sn4Cu by using ultrasound treatments during solidification to obtain an almost globular microstructure. Metallurgical characterizations and pin on disk wear tests were carried out on semisolid as well as on conventionally cast samples in order to assess the benefit of the treatment.

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