Effect of microwave heating on microstructure and elevated temperature adhesive wear behavior of HVOF deposited CoMoCrSi-Cr3C2 coating

2019 ◽  
Vol 374 ◽  
pp. 291-304 ◽  
Author(s):  
C. Durga Prasad ◽  
Sharnappa Joladarashi ◽  
M.R. Ramesh ◽  
M.S. Srinath ◽  
B.H. Channabasappa
Keyword(s):  
Elevated Temperature ◽  
Microwave Heating ◽  
Adhesive Wear ◽  
Wear Behavior

Sliding Wear of Cu-Ag Alloy in Cu Cladding Al Contact Wire

2012 ◽  
Vol 538-541 ◽  
pp. 1924-1928
Author(s):  
Ying Hui Zhang ◽  
Bin Yang ◽  
Jing Qin ◽  
Hong Bo Sui
Keyword(s):  
Plastic Deformation ◽  
Surface Morphology ◽  
Sliding Wear ◽  
Adhesive Wear ◽  
Wear Behavior ◽  
Contact Wire ◽  
Sliding Direction ◽  
Black Oxide ◽  
Worn Surface

The sliding wear behavior of Cu-Ag alloy in Cu cladding Al contact wire against 45# steel or bronze block was tested, then surface morphology was investigated in different load and velocity. The results indicated that the worn surface had plastic deformation and many clear furrows and cutting traces along the sliding direction. There were black oxide of copper on the worn surface. The oxide was both abrasive and lubrication. The mechanisms transformed from abrasive attrition into adhesive wear. Spalling pits and adhesive blocks with bronze friction were significantly bigger than that of steel, and the mechanisms was adhesive wear.

Wear Prediction of Ball Screw Based on Adhesive Wear

2014 ◽  
Vol 635-637 ◽  
pp. 261-265
Author(s):  
Xiang Hong Xu ◽  
Yan Hui Wang ◽  
Dong Xu
Keyword(s):  
Adhesive Wear ◽  
Wear Behavior ◽  
Mechanical Efficiency ◽  
Test System ◽  
Ball Screw ◽  
Analysis Model ◽  
Wear Model ◽  
Systematic Analysis ◽  
Mechanics Model ◽  
Stabilization Condition

This paper aims to develop a new systematic analysis model to predict the wear of ball screw in stabilization condition. In order to investigate the wear behavior between the ball and raceway, a proper contact mechanics model should be established. Then, the wear model of ball screw based on Archard will be proposed and calculated by substituting the ball screw parameters. It has been proved that the effectiveness of the wear model on ball screw is verified through experiments in a specialized test system, which provides the theory basis of reasonably reducing the wear and improving the mechanical efficiency of a ball screw.

Tribological Property Investigation of Self-Lubricating Molybdenum-Based Zirconia Ceramic Composite Operational at Elevated Temperature

2019 ◽  
Vol 142 (2) ◽  
Author(s):  
Kunal Ghosh ◽  
Subhrojyoti Mazumder ◽  
Bipin Kumar Singh ◽  
Harish Hirani ◽  
Poulomi Roy ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Wear Rate ◽  
Photoelectron Spectroscopy ◽  
Ceramic Composite ◽  
Wear Behavior ◽  
Substantial Reduction ◽  
Tetragonal Zirconia ◽  
Zirconia Ceramic ◽  
Sintering Process ◽  
Wear Debris Analysis

Abstract Three mol% yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP) with 0.5 wt% of magnesium oxide (MgO) and 6 wt% of molybdenum (Mo) were prepared by the pressureless sintering process, and the friction and wear behavior of the ceramic composite were studied against the alumina disc. Tribological tests were carried out both at room temperature as well as at an elevated temperature (500 °C). The result revealed that a substantial reduction of ∼50% in the friction coefficient and ∼31% reduction in the wear rate were achieved while 6 wt% Mo was added into the 3Y-TZP matrix operational at 500 °C. No significant tribological influence was observed with the addition of Mo at the normal operating temperature. The minimum coefficient of friction and low specific wear rate were achieved because of the formation of MoO3 in between the mating surfaces at elevated temperature. The worn surfaces were characterized by means of field emission scanning electron microscopy (FESEM). The formation of MoO3 phases was identified by wear debris analysis which was performed with the help of X-ray photoelectron spectroscopy (XPS).

scholarly journals Improvement of Adhesive Wear Behavior by Variable Heat Treatment of a Tool Steel for Sheet Metal Forming

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2831 ◽  
Author(s):  
Alejandro Gonzalez-Pociño ◽  
Florentino Alvarez-Antolin ◽  
Juan Asensio-Lozano
Keyword(s):  
Wear Resistance ◽  
Tool Steel ◽  
Significant Influence ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Adhesive Wear ◽  
Wear Behavior ◽  
Air Cooling ◽  
Tempering Temperature ◽  
Quench Cooling

Vanadis 10 steel is a powder metallurgy (PM) processed tool steel. It is a ledeburitic steel with 8% Cr and 10% V. By deliberately varying the process parameters related to the quenching, tempering, and nitriding of these steels, the aim of this study is to determine which of these parameters have a significant influence on its adhesive wear resistance. The research methodology employed was a Design of Experiments (DoE) with six factors and two levels for each factor. The tempering temperature, number of temperings, and carrying out of a thermochemical nitriding treatment were found to have a significant effect. To increase adhesive wear resistance, austenitization at 1100 °C with air cooling is recommended, followed by three temperings at 500 °C and a subsequent nitriding treatment. It should be noted that the quench cooling medium does not have a significant influence on wear resistance. Furthermore, (Fe,Cr)7C3 (M7C3 carbides) are transformed into carbonitrides during nitriding. However, (Fe,V)C (MC carbides) are not affected by this nitriding process.

Wear behavior of AlCrSiVN coatings at elevated temperature up to 700 °C

Vacuum ◽  
2019 ◽  
Vol 169 ◽  
pp. 108876 ◽  
Author(s):  
Zhengtao Wu ◽  
Peng Tang ◽  
Yiming Wu ◽  
Qimin Wang ◽  
Zhengbing Qi
Keyword(s):  
Elevated Temperature ◽  
Wear Behavior
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