scholarly journals Room- and high temperature Wear Resistance of MCrAlY Coatings Deposited by Detonation Gun (D-gun) and Supersonic Plasma Spraying (SSPS) Techniques

Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1107
Author(s):  
Mehmet Kilic ◽  
Dervis Ozkan ◽  
Mustafa Sabri Gok ◽  
Abdullah Cahit Karaoglanli
Keyword(s):  
High Temperature ◽  
Plasma Spraying ◽  
Wear Behavior ◽  
Substrate Material ◽  
Wear Loss ◽  
Wear Performance ◽  
High Temperature Wear ◽  
Nickel Based Superalloy ◽  
Supersonic Plasma ◽  
Detonation Gun

In this study, CoNiCrAlY metallic coatings were deposited on an Inconel 718 nickel-based superalloy substrate material using the detonation gun (D-gun) and supersonic plasma spraying (SSPS) techniques. The microstructural and mechanical properties in addition to their room and high temperature wear behavior of the produced coatings were evaluated. The wear tests were performed at room temperature (rt), 250 and 500 °C using 2N and X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS) analyses of the worn coatings were performed to assess their wear performance. The coatings produced with D-gun process exhibited higher hardness and lower porosity (550 ± 50 HV0.25 hardness and 1.2 ± 1.0% porosity) than SSPS coatings (with 380 ± 30 HV0.25 hardness and 1.5 ± 1.0% porosity) which resulted in better room- and high temperature wear performance for D-gun coatings. The worn surfaces of both coatings exhibited formation of tribological layers and superficial microstructural changes by varying temperature and load conditions. Increasing load and temperature resulted in increased wear loss whereas increasing temperature resulted in reduced COF values for both coatings.

Effect of High Temperature on Wear Behavior of Stir Cast Aluminium/Boron Carbide Composites

2020 ◽  
Vol 22 (4) ◽  
pp. 1031-1046
Author(s):  
X. Canute ◽  
M. C. Majumder
Keyword(s):  
High Temperature ◽  
Wear Rate ◽  
Boron Carbide ◽  
Wear Behavior ◽  
Base Alloy ◽  
Weight Fraction ◽  
Sliding Velocity ◽  
Wear Properties ◽  
High Temperature Wear ◽  
The Matrix

AbstractThe need for development of high temperature wear resistant composite materials with superior mechanical properties and tribological properties is increasing significantly. The high temperature wear properties of aluminium boron carbide composites was evaluated in this investigation. The effect of load, sliding velocity, temperature and reinforcement percentage on wear rate was determined by the pin heating method using pin heating arrangement. The size and structure of base alloy particles change considerably with an increase of boron carbide particles. The wettability and interface bonding between the matrix and reinforcement enhanced by the addition of potassium flurotitanate. ANOVA technique was used to study the effect of input parameters on wear rate. The investigation reveals that the load had higher significance than sliding velocity, temperature and weight fraction. The pin surface was studied with a high-resolution scanning electron microscope. Regression analysis revealed an extensive association between control parameters and response. The developed composites can be used in the production of automobile parts requiring high wear, frictional and thermal resistance.

High temperature wear performance of Ti–6.5Al–3.5Mo–1.5Zr–0.3Si alloy subjected to laser shock peening

2018 ◽  
Vol 34 (18) ◽  
pp. 2294-2304 ◽  
Author(s):  
Xudong Ren ◽  
Zhaopeng Tong ◽  
Wangfan Zhou ◽  
Lan Chen ◽  
Yunpeng Ren ◽  
...  
Keyword(s):  
High Temperature ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Wear Performance ◽  
High Temperature Wear ◽  
Shock Peening

scholarly journals EFFECT OF DIFFRENT LOADS ON THE WEAR BEHAVIORS OF 5Cr5Mo2V STEEL AT 700 °C

2021 ◽  
Vol 55 (6) ◽  
Author(s):  
Zhixiong Bai ◽  
Hang Yang ◽  
Ning Su ◽  
Xiaochun Wu
Keyword(s):  
High Temperature ◽  
Crack Initiation ◽  
Wear Rate ◽  
Wear Behavior ◽  
Oxidative Wear ◽  
Test Load ◽  
High Temperature Wear ◽  
Holding Power ◽  
The Matrix ◽  
Matrix Evolution

The effect of different loads on the high-temperature wear behavior of 5Cr5Mo2V steel at 700 °C was investigated. Wear morphologies, oxide compositions and matrix evolution were studied. The results showed that the wear rate increased with an increased test load, and the wear mechanism transformed from abrasive-oxidative wear to adhesive-oxidative wear. The relation between a delaminated oxide layer and cracks in the matrix were investigated. The exfoliation of carbides and displacement difference between the matrix and carbides caused a crack initiation. The wear rate strongly related to carbides, and coarse M6C carbides with poor holding power led to a high wear rate. Besides, a diagram of wear characteristics under different loads was suggested in this work.

Influence of Combined Addition of Boron and Strontium on High-Temperature Wear Behavior of A356 Alloy

2015 ◽  
Vol 59 (1) ◽  
pp. 1-7 ◽  
Author(s):  
M. S. Prabhudev ◽  
V. Auradi ◽  
K. Venkateswarlu ◽  
S. A. Kori
Keyword(s):  
High Temperature ◽  
Wear Behavior ◽  
A356 Alloy ◽  
High Temperature Wear

Influence of WS2 content on high temperature wear performance of magnetron sputtered TiN-WSx thin films

2019 ◽  
Vol 45 (16) ◽  
pp. 19918-19924 ◽  
Author(s):  
E.C. Serra ◽  
V.F.D. Soares ◽  
D.A.R. Fernandez ◽  
R. Hübler ◽  
K.R.C. Juste ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Wear Performance ◽  
High Temperature Wear

scholarly journals Preparation and high-temperature wear behavior of NiAl-Ti3AlC2 fabricated by thermal explosion

2020 ◽  
Vol 7 (2) ◽  
pp. 026539
Author(s):  
Jianjun Yuan ◽  
Qingzhao Wang ◽  
Xinying Liu ◽  
Shumei Lou ◽  
Qun Li
Keyword(s):  
High Temperature ◽  
Thermal Explosion ◽  
Wear Behavior ◽  
High Temperature Wear

scholarly journals Improvement of High Temperature Wear Behavior of In-Situ Cr3C2-20 wt. % Ni Cermet by Adding Mo

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 682
Author(s):  
Liang Sun ◽  
Wenyan Zhai ◽  
Hui Dong ◽  
Yiran Wang ◽  
Lin He
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Wear Mechanism ◽  
Room Temperature ◽  
Wear Behavior ◽  
Ceramic Particle ◽  
High Temperature Wear ◽  
The Coefficient Of Friction ◽  
Mo Content

Cr3C2-Ni cermet is a kind of promising material especially for wear applications due to its excellent wear resistance. However, researches were mainly concentrated on the experiment condition of room temperature, besides high-temperature wear mechanism of the cermet would be utilized much potential applications and also lack of consideration. In present paper, the influence of Mo content on the high-temperature wear behavior of in-situ Cr3C2-20 wt. % Ni cermet was investigated systematically. The friction-wear experiment was carried out range from room temperature to 800 °C, while Al2O3 ceramic was set as the counterpart. According to experimental results, it is indicated that the coefficient of friction (COF) of friction pairs risen at the beginning of friction stage and then declined to constant, while the wear rate of Cr3C2-20 wt. % Ni cermet risen continuously along with temperature increased, which attributes to the converted wear mechanism generally from typical abrasive wear to severe oxidation and adhesive wear. Generally, the result of wear resistance was enhanced for 13.4% (at 400 °C) and 31.5% (at 800 °C) by adding 1 wt. % Mo. The in-situ newly formed (Cr, Mo)7C3 ceramic particle and the lubrication phase of MoO3 can effectively improve the wear resistance of Cr3C2-20 wt. % Ni cermet.

High temperature wear performance of HVOF-sprayed Cr 3 C 2 -WC-NiCoCrMo and Cr 3 C 2 -NiCr hardmetal coatings

2017 ◽  
Vol 416 ◽  
pp. 33-44 ◽  
Author(s):  
Wuxi Zhou ◽  
Kesong Zhou ◽  
Yuxi Li ◽  
Chunming Deng ◽  
Keli Zeng
Keyword(s):  
High Temperature ◽  
Wear Performance ◽  
High Temperature Wear
Sign in / Sign up

Export Citation Format

Share Document