Microstructure and Abrasive-Wear Behavior under High Temperature of Laser Clad Ni-Based WC Ceramic Coating

2012 ◽  
Vol 591-593 ◽  
pp. 891-895
Author(s):  
Jian Xin Kuang ◽  
Xin Heng Wang ◽  
An Min Liu
Keyword(s):  
High Temperature ◽  
Laser Cladding ◽  
Friction And Wear ◽  
Wear Behavior ◽  
Rare Earth Oxide ◽  
Ceramic Coatings ◽  
Wear Properties ◽  
Main Mode ◽  
Cladding Layer ◽  
Friction And Wear Properties

The laser cladding is used on the surface of 4Cr14Ni14NW2Mo heat-resisting steel, In the laser cladding added 0. 5% CeO2,Ni-based WC coating can be formed. The effects of rare-earth oxide CeO2 on the microstructure and microhardness and wear-resistance and corrosion-resistance of Ni-based metal-ceramic coatings are investigated. Observing and analying the microstructure, Measuring microhardness, Checking the dry friction and wear properties of high-temperature of the coating in different temperature. The results showed that the microstructure of Ni21+20%Wc+0.5%CeO2 cladding layer is even small, Hardness is more uniform and gentle. Wear mechanism of the laser cladding layer changes with temperature changes.Abrasion is the main mode under Low temperature , it was transformed into Adhesive wear and Oxidation wear along with the increase of the temperature.dry friction and wear properties of high-temperature is excellent.

Effect of Rare Earth on Microstructure and Friction and Wear Properties of Ti-Based Laser Cladding Layer

2019 ◽  
Vol 46 (9) ◽  
pp. 0903001
Author(s):  
张天刚 Tiangang Zhang ◽  
庄怀风 Huaifeng Zhuang ◽  
肖海强 Haiqiang Xiao ◽  
柏明磊 Minglei Bai ◽  
安通达 Tongda An
Keyword(s):  
Rare Earth ◽  
Laser Cladding ◽  
Friction And Wear ◽  
Wear Properties ◽  
Cladding Layer ◽  
Friction And Wear Properties

Friction and Wear Properties of Laser Cladding Fe901 Alloy Coating on 45 Steel Surface

2019 ◽  
Vol 46 (5) ◽  
pp. 0502001
Author(s):  
陈菊芳 Chen Jufang ◽  
李小平 Li Xiaoping ◽  
薛亚平 Xue Yaping
Keyword(s):  
Laser Cladding ◽  
Friction And Wear ◽  
Steel Surface ◽  
Alloy Coating ◽  
Wear Properties ◽  
Friction And Wear Properties

Friction and Wear Properties of Laser Cladding Coatings under Boundary Lubrication Conditions

2011 ◽  
Vol 314-316 ◽  
pp. 143-146
Author(s):  
Xin Feng ◽  
Yan Qiu Xia
Keyword(s):  
Phase Composition ◽  
Laser Cladding ◽  
Friction And Wear ◽  
Liquid Paraffin ◽  
Extreme Pressure ◽  
Wear Properties ◽  
Aisi 52100 ◽  
Aisi 1045 ◽  
Aisi 52100 Steel ◽  
Friction And Wear Properties

AISI 1045 steels were laser-clad with Ni-based powder by CO2 HJ-4 coherent laser. The phase composition of the laser-cladding coating was investigated by means of X-ray diffraction (XRD). The cross-section of the cladding coating was observed using a scanning electron microscopy (SEM). The friction and wear properties of the laser cladding coatings sliding against AISI 52100 steel under the lubrication of liquid paraffin containing various anti-wear and extreme pressure additives were investigated using an Optimol SRV reciprocating motion friction and wear tester. Results showed that the laser-cladding coating considerably decreased coefficient of friction and increased wear resistance in sliding against AISI 52100 steel and attributed to the change in the hardness, phase composition of the laser-cladding coating and tribochemical reactions between the laser-cladding coating and the extreme pressure and anti-wear additives.

Friction and Wear Properties of α-Al2O3-Coated SiC Particle Reinforced Nickel Matrix Composites Sliding against Bearing Steel

2017 ◽  
Vol 266 ◽  
pp. 155-164
Author(s):  
Chao Feng ◽  
Yi Xie ◽  
Zhong Wu
Keyword(s):  
High Temperature ◽  
Friction And Wear ◽  
Sol Gel ◽  
Bearing Steel ◽  
Wear Behaviour ◽  
Nickel Matrix ◽  
Wear Properties ◽  
Sic Particles ◽  
Friction And Wear Properties ◽  
Sic Composites

In this study, attempt has been made to investigate the effect of SiC particles on the friction and wear properties of Ni/SiC composites manufactured by electrodeposition, especially for the composites with high-temperature treatment.For this purpose, α-Al2O3 was coated on the surfaces of SiC particles by sol-gel technology to inhibit interfacial reaction of SiC and nickel at high temperature. Both of the Ni/α-Al2O3-coated SiC (Ni/CSp) and Ni/uncoated SiC (Ni/UCSp) composites were treated at 600 °C to study the resulting wear behaviour. The results indicated that with heat treatment at 600 °C, the Ni/CSp composite had better tribological properties than the Ni/UCSp composite. It was proved that the uncoated SiC particles have reacted completely with nickel leaving many defects, while the coated SiC particles still remained in the Ni/CSp composite hardening the nickel matrix and supporting the counterpart, thus improving the wear resistance of Ni/CSp composite with relatively low friction coefficient and wear mass loss compared to the Ni/UCSp composite.

Adhesion and tribological properties of diamond films on various substrates

1990 ◽  
Vol 5 (11) ◽  
pp. 2515-2523 ◽  
Author(s):  
Cheng-Tzu Kuo ◽  
Tyan-Ywan Yen ◽  
Ting-Ho Huang ◽  
S. E. Hsu
Keyword(s):  
Friction And Wear ◽  
Microwave Plasma ◽  
Diamond Films ◽  
Ceramic Coatings ◽  
Wear Properties ◽  
Friction And Wear Properties ◽  
Coated Cemented Carbide ◽  
Carbide Inserts ◽  
Cemented Carbide Inserts ◽  
Adhesion Friction

The adhesion of diamond films deposited by microwave plasma-enhanced CVD on various substrates can be quantitatively determined by an indentation method. The friction behaviors of diamond-coated cemented carbides sliding against a brass ring were studied. The wear resistance of the diamond-coated cemented carbide inserts and the commercial inserts with the other ceramic coatings were compared and directly evaluated by turning tests. Effects of the coating conditions, the substrate materials, and the surface pretreatments of the substrate on adhesion, friction, and wear properties are discussed.

Plasma Sprayed Self-Lubricating Cr2O3-CaF2 Coatings: Friction and Wear Properties

1998 ◽  
Author(s):  
F. Vos ◽  
L. Delaey ◽  
M. De Bonte ◽  
L. Froyen
Keyword(s):  
Friction And Wear ◽  
Solid Lubricant ◽  
Composite Coatings ◽  
Substrate Surface ◽  
Wear Test ◽  
Ceramic Coatings ◽  
Wear Volume ◽  
Wear Properties ◽  
Wear And Friction ◽  
Friction And Wear Properties

Abstract An alternative production route to obtain thermally sprayed self-lubricating ceramic coatings is proposed and microstructural, friction and wear properties of these coatings are discussed. A preliminary powder treatment shows to induce a higher degree of homogeneity compared to conventionally deposited composite coatings, offering some perspectives for a further improvement of the lubricating and wear properties. This approach is illustrated using CaF2 as a solid lubricant dispersed in a Cr2O3 matrix, where the high melting point of the latter (Tm{Cr2O3} =2460°C) necessitates plasma spraying as deposition technique. The microstructure of the coatings is evaluated by a metallographic study of sections perpendicular and parallel to the substrate surface. Wear and friction behaviour is evaluated using reciprocating wear test Wear tracks are analysed by means of laser profilometry. The results are discussed in relation to test and production parameters. Test temperature as well as solid lubricant concentration predominantly affects the wear and friction properties. Using a surface temperature of 400°C a friction coefficient of 0.25 and a wear volume of 37*103 µm3 after 10.000 cycles are obtained for a coating containing 16 vol.% of CaF2.

Microstructure and High-Temperature Friction and Wear Properties of TiC/CaF2/Inconel 718 Composite Fabricated Using Laser Melting Deposition Technique

2020 ◽  
Vol 47 (1) ◽  
pp. 0102008
Author(s):  
刘志宏 Liu Zhihong ◽  
刘元富 Liu Yuanfu ◽  
张乐乐 Zhang Lele ◽  
陈德强 Chen Deqiang ◽  
石晨晓 Shi Chenxiao ◽  
...  
Keyword(s):  
High Temperature ◽  
Inconel 718 ◽  
Friction And Wear ◽  
Deposition Technique ◽  
Wear Properties ◽  
Laser Melting ◽  
Laser Melting Deposition ◽  
Friction And Wear Properties
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