Wear resistance of Al2O3/TiB2 ceramic cutting tools in sliding wear tests and in machining processes

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.

Download Full-text

Self-lubrication of Al2O3/TiC/CaF2 ceramic composites in sliding wear tests and in machining processes

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2005.12.003 ◽

2007 ◽

Vol 28 (3) ◽

pp. 757-764 ◽

Cited By ~ 40

Author(s):

Jianxin Deng ◽

Lili Liu ◽

Xuefeng Yang ◽

Jianhua Liu ◽

Junlong Sun ◽

...

Keyword(s):

Sliding Wear ◽

Ceramic Composites ◽

Machining Processes ◽

Wear Tests

Download Full-text

Study for Improvement in the Surface Properties and Wear Behavior of Mild Steel

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.38538 ◽

2021 ◽

Vol 9 (10) ◽

pp. 938-948

Author(s):

Hamdan Gowhar Nahvi

Keyword(s):

Weight Loss ◽

Wear Resistance ◽

Sliding Wear ◽

Substrate Material ◽

Temperature Oxidation ◽

Iron Aluminum ◽

Gtaw Process ◽

Wear Tests ◽

Coated Area ◽

Surface Improvement

Abstract: Surface of a material can be improved by depositing the filler metal for the enhancement of various properties. Surface should be harder than substrate material for surface improvement. This surface improvement is also known as surfacing. In present research Mild steel specimens of size 140×35×40 were used to deposit surfacing layers and study the feasibility of iron/aluminum with varying compositions on low carbon steel deposited by GTAW process. Specimens for hardness and oxidation resistance were prepared. While studying oxidation of surfaced and un-coated area (base material), oxidation test resulted that the oxidation occurred on surface of base metal (un-coated area) after heating at different temperatures and time intervals. Specimens kept at 500˚C, 700˚C temperatures for 3, 6, 9 hours to get oxidized from un-coated surface but no mark of oxidation and pitting was visible at surfaced area but pitting of un-coated area occurred at 700˚C temperature. Oxidation had no effect to surfaced area. Low temperature oxidation test specimens gave only weight loss from un-coated portion but high temperature oxidation gave high amount of weight reduction due to pitting occurred on un-coated portion. The amount of weight loss of specimens increased with increase in furnace holding time at constant temperature. With increase in temperature oxidation of un-coated area of specimens also increased and pitting action occurred on un-coated area of specimens at high temperature. Further, for the various wear tests the cylindrical pins of 8 mm diameter with spherical tip 4 mm radius was made. Wear tests were carried out on pin on disc sliding wear testing machine. The comparison of wear rate loss was studied with constant sliding distance, varying load and sliding velocity of different compositions of iron/aluminum surfacing and substrate material. Hardness and wear resistance of composition were increased with increase in percentage of Fe element in composition. Composition C1 (Fe:Al/70:30) had high hardness and high wear resistance as compared to composition C2 (Fe:Al/30:70) and C3 (Fe:Al/50:50). Composition C3 (Fe:Al/50:50) had better hardness and wear resistance as compared composition C2 (Fe:Al/70:30). Keywords: Surface improvement, Fe-Al intermetallic, GTAW process, Sliding wear.

Download Full-text

Friction and wear behaviors of the PVD ZrN coated carbide in sliding wear tests and in machining processes

Wear ◽

10.1016/j.wear.2007.03.014 ◽

2008 ◽

Vol 264 (3-4) ◽

pp. 298-307 ◽

Cited By ~ 72

Author(s):

Deng Jianxin ◽

Liu Jianhua ◽

Zhao Jinlong ◽

Song Wenlong ◽

Niu Ming

Keyword(s):

Sliding Wear ◽

Friction And Wear ◽

Machining Processes ◽

Coated Carbide ◽

Wear Tests

Download Full-text

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.309-311.1265 ◽

2006 ◽

Vol 309-311 ◽

pp. 1265-1268 ◽

Cited By ~ 2

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.

Download Full-text

Characterization and Mechanical Properties of PM Fe-Cu/SiCp Alloys

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.829.73 ◽

2013 ◽

Vol 829 ◽

pp. 73-77

Author(s):

Kerim Emre Öksüz ◽

Tarık Gün ◽

Mehmet Şi̇mşi̇r

Keyword(s):

Wear Resistance ◽

Metal Matrix ◽

Brinell Hardness ◽

Cutting Tools ◽

Cobalt Content ◽

Matrix Composites ◽

Work Samples ◽

C 30 ◽

New Generation ◽

Wear Tests

FeCuCo alloys are the new generation of metal matrix for diamonds in PM processed cutting tools. These alloys were created with the purpose of reducing the cobalt content in diamond tools. Nevertheless, little have been published, once this is a matter of industrial interest. In this work, samples of Fe (10-20) wt. %Cu and Fe (10-20) wt. %Cu 1%wt SiCp alloys were processed by cold pressing at 350 MPa, followed by sintering at 1150 C/30 min. under argon atmosphere. After sintering, a study of structural and microstructural analyses was conducted. Brinell hardness and wear tests were carried out in the metal matrix, as well as the wear resistance of the metal matrix composites. The composition Fe-20%wt Cu-1%wt SiCp was the best among the studied ones, because it presented the best results of hardness and wear resistance.

Download Full-text

Effect of whisker orientation on the friction and wear behaviour of Al2O3/TiB2/SiCω composites in sliding wear tests and in machining processes

Wear ◽

10.1016/s0043-1648(96)07237-7 ◽

1996 ◽

Vol 201 (1-2) ◽

pp. 178-185 ◽

Cited By ~ 11

Author(s):

Jianxin Deng ◽

Xing Ai ◽

Jinsheng Zhang

Keyword(s):

Sliding Wear ◽

Friction And Wear ◽

Wear Behaviour ◽

Machining Processes ◽

Wear Tests

Download Full-text

Wear Behaviour of Al-1050 Alloy Processed by Severe Plastic Deformation

Materials Science Forum ◽

10.4028/www.scientific.net/msf.667-669.1101 ◽

2010 ◽

Vol 667-669 ◽

pp. 1101-1106 ◽

Cited By ~ 4

Author(s):

Chuan Ting Wang ◽

Nong Gao ◽

Robert J.K. Wood ◽

Terence G. Langdon

Keyword(s):

Plastic Deformation ◽

Wear Resistance ◽

Wear Rate ◽

Wear Mechanism ◽

Sliding Wear ◽

Wear Behaviour ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Oxidation Wear ◽

Wear Tests

An Al-1050 alloy was processed by ECAP and HPT, respectively. Dry sliding wear tests were conducted on the as-received and SPD-processed samples under various sliding conditions. A comparison of wear rate indicated that SPD processing decreased the wear resistance. Two main wear mechanisms were observed. The initial wear stage was dominated by severe platelet wear mechanism and later wear was dominated by an oxidation wear mechanism. The results show the severe wear stage of SPD-processed Al-1050 is much longer than that of the as-received Al-1050, which is attributed to the loss of work hardening capacity after SPD processing.

Download Full-text

Estimation of Wear Resistance for Multilayer Coatings Obtained by Nitrogenchroming

Metals ◽

10.3390/met11081153 ◽

2021 ◽

Vol 11 (8) ◽

pp. 1153

Author(s):

Ivan Pavlenko ◽

Jozef Zajac ◽

Nadiia Kharchenko ◽

Ján Duplák ◽

Vitalii Ivanov ◽

...

Keyword(s):

Wear Resistance ◽

Spectral Analysis ◽

Friction Coefficient ◽

Cutting Tools ◽

Wear Intensity ◽

Maximum Amount ◽

Multilayer Coatings ◽

Wear Depth ◽

X Ray ◽

Machine Parts

This article deals with improving the wear resistance of multilayer coatings as a fundamental problem in metal surface treatment, strengthening elements of cutting tools, and ensuring the reliability of machine parts. It aims to evaluate the wear depth for multilayer coatings by the mass loss distribution in layers. The article’s primary purpose is to develop a mathematical method for assessing the value of wear for multilayer steel-based coatings. The study material is a multilayer coating applied to steel DIN C80W1. The research was performed using up-to-date laboratory equipment. Nitrogenchroming has been realized under overpressure in two successive stages: nitriding for 36 h at temperature 540 °C and chromizing during 4 h at temperature 1050 °C. The complex analysis included several options: X-ray phase analysis, local micro-X-ray spectral analysis, durometric analysis, and determination of wear resistance. These analyses showed that after nitrogenchroming, the three-layer protective coating from Cr23C6, Cr7C3, and Cr2N was formed on the steel surface. Spectral analysis indicated that the maximum amount of chromium 92.2% is in the first layer from Cr23C6. The maximum amount of carbon 8.9% characterizes the layer from Cr7C3. Nitrogen is concentrated mainly in the Cr2N layer, and its maximum amount is 9.4%. Additionally, it was determined that the minimum wear is typical for steel DIN C80W1 after nitrogenchroming. The weight loss of steel samples by 25 mg was obtained. This value differs by 3.6% from the results evaluated analytically using the developed mathematical model of wear of multilayer coatings after complex metallization of steel DIN C80W1. As a result, the impact of the loading mode on the wear intensity of steel was established. As the loading time increases, the friction coefficient of the coated samples decreases. Among the studied samples, plates from steel DIN C80W1 have the lowest friction coefficient after nitrogenchroming. Additionally, a linear dependence of the mass losses on the wearing time was obtained for carbide and nitride coatings. Finally, an increase in loading time leads to an increase in the wear intensity of steels after nitrogenchroming. The achieved scientific results are applicable in developing methods of chemical-thermal treatment, improving the wear resistance of multilayer coatings, and strengthening highly loaded machine parts and cutting tools.

Download Full-text