Effect of Initial Kinetic Energy of Si3N4 Ball on Impact Wear Behavior of High-Velocity Oxygen Fuel-Sprayed WC-10Co-4Cr Coating and Medium-Carbon Steel

Liu, Shaopeng; Mei, Lang; Shen, Mingxue; Xia, Jing; Xiao, Yao; Zhao, Huoping; Zhang, Youliang; Hu, Qiang

doi:10.1007/s11665-022-07633-3

Cited by 1 publication

(2 citation statements)

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“…Excessive wear of machine parts negatively affects the entire production and technological process. An especially aggressive * E-mail: marek.hawryluk@pwr.edu.pl working environment is encountered in the ceramics industry, particularly on roof tile production lines, where key machine elements regularly come into direct contact with the processed material, whose main components are clay, quartz sand, and ground crushed brick [6]. The most intensive abrasion occurs in the process of band extrusion, where the production mass is mixed, homogenized, vented, and formed [7].…”

Section: Introductionmentioning

confidence: 99%

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Comparative analysis of microstructure and selected properties of WC-Co-Cr coatings sprayed by high-velocity oxy fuel on S235 and AZ31 substrates

Jonda,

Myalska-Głowacka,

Łatka

et al. 2024

Materials Science-Poland

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The purpose of this work was to carry out comparative studies of WC-Co-Cr coatings deposited using the high velocity oxy fuel (HVOF) method onto two types of substrate material: structural steel S235 and magnesium alloy AZ31. The influence of the substrate material type on the microstructure, phase composition, crystallite size, porosity, Vickers microhardness, instrumental hardness (HIT), Young’s modulus (EIT), and fracture toughness was investigated. For both substrates, the deposited coatings deposited were characterized with fine-grained and compact microstructure. The X-ray diffraction (XRD) revealed presence of following phases: WC, W2C, Co0.9W0.1, and Co3W9C4. The WC phase was the most desirable and stable one with crystallites were below 100 nm. On the other hand, the size of the W2C crystallites was below 30 nm. The coatings obtained showed porosity values equal to 2.3 ± 0.4 vol% and 2.8 ± 0.7 vol% for AZ31 and S235, respectively. The average Vickers microhardness for both types of sample was appproximately 1200 HV0.3. The average HIT values for carbide particles and metallic matrix were around 29 GPa and 6.5 GPa, respectively. In the case of EIT, it was around 620 GPa and 190 GPa for WC and Co-Cr, respectively. The differences between coatings were negligible. The EIT value for both coatings was equal to 344 ± 11 GPa. The fracture toughness was around 4.5 MPa · m1/2 in both cases. The investigations revealed that it is possible to replace steel substrate material with a much lighter equivalent, in this case AZ31 alloy, without deterioration of the coating properties.

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Section: Introductionmentioning

confidence: 99%

“…Materials that can provide good wear, corrosion, and high temperature resistance are mainly cermets [4,5]. Among these, tungsten carbide with a cobalt and chromium matrix provides very good properties, such as high wear-, corrosion-and cavitation erosion resistance [6][7][8].…”

Section: Introductionmentioning

confidence: 99%