Sliding friction and wear behavior of Al–Ni–Co–Si quasicrystalline coatings deposited by the high-velocity oxy-fuel spraying technique

2002 ◽  
Vol 17 (2) ◽  
pp. 492-501 ◽  
Author(s):  
Eric Fleury ◽  
Yu-Chan Kim ◽  
Jae-Soo Kim ◽  
Hyo-Sok Ahn ◽  
Sang-Mok Lee ◽  
...  
Keyword(s):  
Coefficient Of Friction ◽  
High Velocity ◽  
Wear Debris ◽  
Friction And Wear ◽  
Sliding Friction ◽  
Wear Behavior ◽  
Stick Slip ◽  
Friction And Wear Behavior ◽  
Test Conditions ◽  
The Coefficient Of Friction

The sliding friction and wear performance of Al–Ni–Co–Si quasicrystalline coatings deposited by the high-velocity oxy-fuel technique were investigated under dry sliding conditions. This study indicated that changes in the imposed sliding test conditions modified the friction and wear behavior of quasicrystalline coatings. Qualitative analysis of the contact interface and wear debris were performed with the aim of understanding the role of the third body on the friction and wear processes. The dependence of the coefficient of friction on the sliding velocity and counterpart material was explained by the stick-slip behavior. It was also shown that test conditions favorable for the formation of thick intermediate layers and the densification of the coating subsurface led to low wear rates. Large cylindrical particles, formed by agglomeration of small wear debris, were suggested as a beneficial factor for the reduction of the coefficient of friction.

Effect of contact temperature, normal load and dry sliding velocity on the coefficient of friction and wear behavior of nickel based super alloy

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rama Krishna S. ◽  
Patta Lokanadham
Keyword(s):  
Coefficient Of Friction ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Normal Load ◽  
Contact Temperature ◽  
Sliding Velocity ◽  
Friction And Wear Behavior ◽  
Alloy Material ◽  
The Coefficient Of Friction ◽  
Super Alloy

Purpose The purpose of the present paper aims to, study the coefficient of friction and wear behavior of nickel based super alloys used in manufacturing of gas and steam turbine blades. In present paper, parametric study focuses on normal load, dry sliding velocity and contact temperature influence on coefficient of friction and wear of a nickel based super alloy material. Design/methodology/approach Experimental investigation is carried out to know the effect of varying load at constant sliding velocity and varying sliding velocity at constant load on coefficient of friction and wear behavior of nickel based super alloy material. The experiments are carried out on a nickel based super alloy material using pin on disk apparatus by load ranging from 30 N to 90 N and sliding velocity from 1.34 m/s to 2.67 m/s. The contact temperature between pin and disk is measured using K-type thermocouple for all test conditions to know effect of contact temperature on coefficient of friction and wear behavior of nickel based super alloy material. Analytical calculations are carried out to find wear rate and wear coefficient of the test specimen and are compared with experimental results for validation of experimental setup. Regression equations are generated from experimental results to estimate coefficient of friction and wear in the range of test conditions. Findings From the experimental results, it is observed that by increasing the normal load or sliding velocity, the contact temperature between the pin and disk increases, the coefficient of friction decreases and wear increases. Analysis of variance (ANOVA) is used to study the influence of individual parameters like normal load, dry sliding speed and sliding distance on the coefficient of friction and wear of nickel based super alloy material. Originality/value This is the first time to study effect of contact temperature on the coefficient of friction and wear behavior of nickel-based super alloy used for gas and steam turbine blades. Separate regression equations have been developed to determine the coefficient of friction and wear for the entire range of speed of gas turbine blades made of nickel based super alloy. The regression equations are also validated against experimental results.

Friction and wear behavior of pin-bushing with magnetorheological fluids

2017 ◽  
Vol 69 (6) ◽  
pp. 912-918 ◽  
Author(s):  
Peng Zhang ◽  
Gwanghee Lee ◽  
Chulhee Lee ◽  
Hyung Yoon
Keyword(s):  
Magnetic Field ◽  
Coefficient Of Friction ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Magnetorheological Fluids ◽  
Content Type ◽  
Friction And Wear Behavior ◽  
Wear Characteristics ◽  
The Coefficient Of Friction ◽  
Friction And Wear Characteristics

Purpose The purpose of this paper is to carry out research on friction and wear behavior of pin-bushing with magnetorheological fluids (MRFs). Design/methodology/approach The oscillation friction characteristics of MRFs with a magnetic field are evaluated by a pin-bushing friction wear tester. The housing is adjusted to apply the magnetic field to MRFs. Experiments are carried out with and without a magnetic field, and the coefficient of friction and temperature on the contact interface are measured. The surfaces of the pin and bushing are also examined by a surface profilometer and an optical microscope before and after tests. The experiment results show a lower coefficient of friction is observed when a magnetic field is applied. Findings The temperature is lowest when grease is used. The case when a magnetic field is present shows the higher temperature. The coefficient of friction is higher than grease lubrication when an MRF is applied. The coefficient of friction of the pin-bushing is lowest with grease and highest when a magnetic field is present. The friction coefficient of grease and MRFs decreases as the load increases and remains stable after 3 kN is added. The roughness, surface profile and morphology of the pin show the best results when grease is used as compared with MRFs. Originality/value The tribology characteristic of pin-bushing with MRFs shows more deficiency than that with grease. Nevertheless, it is necessary to carry out the research on the friction and wear characteristics of a pin-bushing with MRFs, as it is expected to increase the load-carrying capacity when an MRF is applied to the pin-bush system. Better friction and wear characteristics could be achieved by enhancing the property of MRFs.

A Comparative Study of Microstructure, Coefficient of Friction and Wear Rate of Alloy Ni-Cr-B-Si-C-W

2021 ◽  
Vol 406 ◽  
pp. 229-239
Author(s):  
Mohamed Nabil Bachirbey ◽  
Mohammed Seyf Eddine Bougoffa ◽  
Chahrazed Benouali ◽  
Tahar Sayah
Keyword(s):  
Wear Rate ◽  
Coefficient Of Friction ◽  
Friction And Wear ◽  
Sliding Friction ◽  
Wear Behavior ◽  
Normal Load ◽  
New Approach ◽  
The Coefficient Of Friction ◽  
Loss Of Mass ◽  
Tribological Parameters

The present work aims at the study of the dry disc pion contact and the complex phenomenon of the wear as well as the sliding friction of our sample elaborated by a hot isotactic compression and the pion. This study consists in determining the coefficient of friction and the influence of the tribological parameters on this phenomenon as well as determining the loss of mass and the wear rate of study sample. In order to enhance the assurance of the validity of the results of tribological study of Ni-Cr-B-Si-C-W alloy in laboratories and compare that to the tribological conditions in reality and industries. This work presents the results of the new approach to compares the wear behavior of the sample between a theoretical study (tribometer)and another in service (a test bench) that reproduces approximately the same conditions as the tribometer (normal load, sliding speed and distance traveled) by measuring the loss of mass and wear rate.

Sliding friction and wear behavior of TC11 in aqueous condition

Wear ◽  
2007 ◽  
Vol 263 (1-6) ◽  
pp. 117-124 ◽  
Author(s):  
Hongyan Ding ◽  
Zhendong Dai ◽  
Fei Zhou ◽  
Guanghong Zhou
Keyword(s):  
Friction And Wear ◽  
Sliding Friction ◽  
Wear Behavior ◽  
Friction And Wear Behavior

Study on the Friction and Wear Behavior of Grind-Hardened Layer

2010 ◽  
Vol 431-432 ◽  
pp. 385-388 ◽  
Author(s):  
Jian Hua Zhang ◽  
Pei Qi Ge ◽  
Lei Zhang ◽  
Yang Yu ◽  
Hui Li
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Wear Debris ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Hardened Layer ◽  
Hardened Steel ◽  
Wear Performance ◽  
Friction And Wear Behavior ◽  
Grind Hardening

The grind-hardening technology utilizes the grinding heat to harden the surface of the workpiece. The friction and wear performance of the grind-hardened layer is one of the important parameters. In this paper, the friction and wear performance of the grind-hardened layer was studied by the friction and wear experiment. The wear rate and the friction coefficient of the grind-hardened steel were studied by comparing with conventional hardened steel and non-hardened steel. The surface worn morphology and the collected wear debris of the grind-hardened steel were observed during the experiment. The wear mechanism of the grind-hardened steel was analyzed under different friction conditions.

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