scholarly journals Analysis of Sliding Wear Properties of Oxide Ceramics by an Indentation Fracture Model

1988 ◽  
Vol 96 (1111) ◽  
pp. 259-264
Author(s):  
Manabu TAKATSU ◽  
Hidehiro KAMIYA ◽  
Takashi OOSHIMA ◽  
Jun-ichi TAKAHASHI
2021 ◽  
Vol 144 (1) ◽  
Author(s):  
Yong-Kuan Zhou ◽  
Jia-Jie Kang ◽  
Wen Yue ◽  
Xiao-Bin Liu ◽  
Zhi-Qiang Fu ◽  
...  

Abstract The WC-10Co4Cr coatings with conventional structure and bimodal structure were sprayed by high-velocity oxygen fuel (HVOF) technology. The phase compositions and morphologies of the WC-10Co4Cr powders and coatings were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The microhardness, porosity, bonding strength, elastic modulus, and indentation fracture toughness of the conventional coating (Conventional) and the bimodal coating (Bimodal) were also studied. The sliding wear properties of the Conventional and the Bimodal against Si3N4 counterballs under different loads at room temperature (∼25 °C) were investigated using a friction and wear tester. Compared with the Conventional, the Bimodal has denser microstructure, lower porosity, more excellent mechanical properties, and the Bimodal has better wear resistance than the Conventional under different loads. The two coatings under 15 N and 30 N only exhibit abrasive and slightly adhesive wear mechanism, while in the load application of 45 N, additional mechanism which is fatigue is detected and causes flaking of the coating.


2016 ◽  
Vol 254 ◽  
pp. 231-236 ◽  
Author(s):  
Ion Dragoş Uţu ◽  
Gabriela Marginean ◽  
Iosif Hulka ◽  
Viorel Aurel Şerban

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.


Author(s):  
Santosh Vitthal Bhaskar ◽  
Hari Narayan Kudal

In the present article, samples made of AISI 4140 steel, pre-treated with plasma nitriding (PN), and coated with different coatings like Titanium Carbonitride (TiCN), Aluminium Chromium Nitride (AlCrN), using Physical Vapor Deposition (PVD) technique, were investigated in terms of their microhardness, surface roughness, and dry sliding wear behaviour. Wear tests were performed with a pin-on-disc machine. Coatings were deposited on plasma nitrided samples. The wear behaviour, and wear mechanisms of TiCN- and AlCrN-coated, PN treated AISI 4140 specimens were investigated using a field emission Scanning Electron Microscope (SEM), equipped with an Energy Dispersive X-ray (EDX) analyzer. An SEM was used to study the surface morphology of the worn surfaces. Also, adhesion tests were conducted to investigate the adhesion quality of the coated specimens. The results of the investigation showed improved wear properties. Furthermore, the compound layer formed during nitriding was found to act as an intermediate hard layer, leading to superior sliding wear properties.


2016 ◽  
Vol 654 ◽  
pp. 185-195 ◽  
Author(s):  
Mehmet Uysal ◽  
Hatem Akbulut ◽  
Mahmud Tokur ◽  
Hasan Algül ◽  
Tuğrul Çetinkaya

Wear ◽  
2015 ◽  
Vol 328-329 ◽  
pp. 338-347 ◽  
Author(s):  
A. Trausmuth ◽  
M. Rodríguez Ripoll ◽  
G. Zehethofer ◽  
T. Vogl ◽  
E. Badisch

2013 ◽  
Vol 37 (11) ◽  
pp. 1349-1354
Author(s):  
YeonWook Kim ◽  
JaeHoon Kim ◽  
HoYeong Yang ◽  
SungHan Park ◽  
HwanKyu Lee ◽  
...  

2004 ◽  
Vol 25 (2) ◽  
pp. 163-166 ◽  
Author(s):  
Feng Wang ◽  
Huimin Liu ◽  
Yajun Ma ◽  
Yuansheng Jin

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