Sliding wear of TiC-NiMo and Cr3C2-Ni cermet particles reinforced FeCrSiB matrix HVOF sprayed coatings

2013 ◽  
Vol 19 (3) ◽  
pp. 203 ◽  
Author(s):  
A Surzhenkov ◽  
M Antonov ◽  
D Goljandin ◽  
T Vilgo ◽  
V Mikli ◽  
...  
Keyword(s):  
Sliding Wear ◽  
Sprayed Coatings

Sliding Wear Behavior of Remelted Al2O3-TiO2 Plasma Sprayed Coatings on Titanium

2016 ◽  
Vol 254 ◽  
pp. 231-236 ◽  
Author(s):  
Ion Dragoş Uţu ◽  
Gabriela Marginean ◽  
Iosif Hulka ◽  
Viorel Aurel Şerban
Keyword(s):  
Sliding Wear ◽  
Wear Behavior ◽  
Pure Titanium ◽  
Titanium Substrate ◽  
Atmospheric Plasma ◽  
Wear Properties ◽  
Before And After ◽  
Sprayed Coating ◽  
Pin On Disk ◽  
Sprayed Coatings

Microstructure and wear properties of the Al2O3-13.wt% TiO2 thermally sprayed coatings before and after remelting were investigated in this study. The coatings were deposited on a pure titanium substrate using the atmospheric plasma spraying (APS) process. The as-sprayed coatings were electron beam (EB) modified in order to improve their compactness and bonding strength.The effect of EB remelting on the microstructure, phase constituents and wear properties was investigated using scanning electron microscopy (SEM), X-Ray diffraction technique and hardness measurements. The sliding wear behavior was tested using a pin on disk method.The results showed that the remelting process had a positive effect removing the lamellar defect of the as-sprayed coating and improving the compactness, hardness and wear behavior.

scholarly journals Cavitation erosion and sliding wear resistance of HVOF coatings

2018 ◽  
Vol 90 (10) ◽  
Author(s):  
Mirosław Szala ◽  
Mariusz Walczak
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Sliding Wear ◽  
Cavitation Erosion ◽  
Steel Substrate ◽  
Reference Sample ◽  
Aisi 304 ◽  
Hvof Coatings ◽  
Cavitation Erosion Resistance ◽  
Sprayed Coatings

The aim of the work was to investigate the resistance to cavitation erosion and sliding wear of sprayed HVOF coatings. M(Ni,Co)CrAlY and Cr3C2-NiCr based coatings were deposited using HVOF method onto stainless steel substrate grade AISI 304. As-sprayed coatings’ surface morphology was examined by SEM-EDS and profilometer methods. Cavitationerosion tests were conducted in distilled water with the use of vibratory rig and stationary specimen method. Cavitation erosion curves were plotted as well as cavitational wear mechanism was observed with the use of SEM microscope. Sliding wear tests were performed using the ball-on-disc tribotester with counter-specimen (ball) made of steel 100Cr6. Wearrates and coefficient of friction were computed. Normalized wear resistance with referenceto stainless steel reference sample AISI 304 was calculated. In addition, comparable analysis of wear resistance results was conducted. M(Ni,Co)CrAlY coating presented the highest cavitation erosion resistance, therefore Cr3C2-NiCr coating represented the highest sliding wear resistance of all tested materials.

scholarly journals Sliding Wear Behavior of Fe-Al Coatings at High Temperatures

Coatings ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 268 ◽  
Author(s):  
Núria Cinca ◽  
Slawomir Cygan ◽  
Cezary Senderowski ◽  
Lucyna Jaworska ◽  
Sergi Dosta ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperatures ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Vital Role ◽  
Wear Rates ◽  
Spray Coatings ◽  
Coating Failure ◽  
Oxygen Fuel ◽  
Sprayed Coatings

The medium and high temperature tribological behavior of different iron aluminide thermal spray coatings was investigated. Several powders synthesized through different routes (ball milling, self-decomposition, and self-propagating high-temperature sintering (SHS)) were evaluated. High heterogeneity of conventional High Velocity Oxygen Fuel (HVOF) coatings plays a vital role in their sliding performance, but as long as their integrity is preserved under high temperature oxidizing conditions, the wear rates are found to be acceptable, as it occurs in the case of ball milled Fe-40Al (at.%) powder. The friction phenomenon and wear mechanisms were analyzed in detail through the wear track morphology, contact surface, and friction coefficients. The occurrence of brittle phases in the sprayed coatings, which are also present when tested at high temperatures, appeared to be crucial in accelerating the coating failure.

Wear Properties of WC/Co Coatings with Plasma and High Velocity Oxyfuel Spraying

1998 ◽  
Author(s):  
T. Akasawa ◽  
K. Ai
Keyword(s):  
High Velocity ◽  
Material Removal ◽  
Sliding Wear ◽  
Substrate Surface ◽  
Wear Properties ◽  
Hvof Spraying ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Steel Substrates ◽  
Sprayed Coatings

Abstract A tungsten carbide/cobalt hard coating was deposited on steel substrates using plasma-arc and high velocity oxyfuel flame (HVOF) spraying. The characteristics of the coatings made by the two spraying methods were evaluated under identical conditions. The microstructure and the chemical composition ofthe coatings were different depending on the powderheating temperature and the velocity of particles. The sliding wear properties of the coatings against hardened steel at high sliding speeds showed different tendencies from those at low speeds. The plasma sprayed coatings resulted in better abrasive wear properties than HVOF coatings did. Material removal by solid particle erosion depended on the striking angle ofparticles on the substrate surface but there are no clear differences in wear properties between the two coatings.

Friction and Wear Behavior of Thermally Sprayed Al-Cu-Fe Quasicrystal Coatings

1997 ◽  
Author(s):  
S. De Palo ◽  
S. Usmani ◽  
S. Sampath ◽  
D.J. Sordelet ◽  
M. Besser
Keyword(s):  
Sliding Wear ◽  
Friction And Wear ◽  
Tribological Behavior ◽  
Wear Behavior ◽  
Friction And Wear Behavior ◽  
Coating Microstructure ◽  
Plasma Sprayed ◽  
Thermally Sprayed ◽  
Sprayed Coatings ◽  
Wear Tests

Abstract Gas atomized Al63Cu25Fe12 powders of varying size fractions were plasma sprayed to study the relationships between coating microstructure and tribological behavior. After spraying, annealing was performed on one of the coatings. Abrasion and sliding wear tests were performed on the coatings. The results indicate a correlation between the abrasion resistance and hardness of the coatings. Furthermore, sliding wear tests reveal lower coefficients of friction for the as-sprayed coatings compared to the annealed coatings.

Influence of hardmetal feedstock powder on the sliding wear and impact resistance of High Velocity Air-Fuel (HVAF) sprayed coatings

Wear ◽  
2019 ◽  
Vol 430-431 ◽  
pp. 340-354 ◽  
Author(s):  
Christophe Lyphout ◽  
Giovanni Bolelli ◽  
Eva Smazalova ◽  
Kazuto Sato ◽  
Junya Yamada ◽  
...  
Keyword(s):  
High Velocity ◽  
Sliding Wear ◽  
Impact Resistance ◽  
Feedstock Powder ◽  
Sprayed Coatings

Sliding wear behaviour of plasma sprayed coatings on nickel based superalloy

2016 ◽  
Vol 33 (1) ◽  
pp. 35-41 ◽  
Author(s):  
M. Adam Khan ◽  
S. Sundarrajan ◽  
M. Duraiselvam ◽  
S. Natarajan ◽  
A. Senthil Kumar
Keyword(s):  
Sliding Wear ◽  
Wear Behaviour ◽  
Nickel Based Superalloy ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings ◽  
Sliding Wear Behaviour

scholarly journals 759 Sliding wear properties of wear resistant thermal sprayed coatings (part2)

2011 ◽  
Vol 2011 (0) ◽  
pp. 220-221
Author(s):  
Takashi SAKAMOTO ◽  
Keisuke YOKOYAMA ◽  
Keiji SONOYA ◽  
Kazuyoshi ISHIDA ◽  
Masanobu NAKAMURA
Keyword(s):  
Sliding Wear ◽  
Wear Properties ◽  
Wear Resistant ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings
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