Unlike sliding wear, there is less work on solid particle erosion of nanocomposite coatings. Only work by Dent et al. (2002) indicates that erosion resistance of nanocomposite coating decreases compared to conventional coatings. However, in nanostructure coatings, erosion resistance increases with the decrease in Co binder phase.

The coating preparation, surface texturing, surface hardening, and architectural layout are the four main factors that dominate surfaces with extreme wear …

Development of materials having superior surface degradation resistance has been a major thrust area of research in modern metallurgy. Loss of material in the form of corrosion, erosion, and wear results in …

The high-temperature erosion wear resistance of the coating was also tested. The results show that the coating sintered at 500°C and 700°C has the best microstructure. To make the coating have ...

The results show that erosion wear resistance of the coating is poor; the erosion rate is exponentially increased with erosion speed, existing low-speed and high-speed erosion stage at 45 ...

Erosion and Wear Resistance of Cr 3 C 2-NiCr Composite . Ceramic Coating for Gun Barrel . Xiangdong Men 1, Fenghe Tao 1, Lin Gan 1, Yue Li 1, Zhe Liu 2.

Although the hardness of the surface material is generally much lower than that of alternative metal surfaces, and of the particles impacting against the surface, it derives …

1 Wear performance of quenched wear resistant steels in abrasive slurry erosion Niko Ojala1(*), Kati Valtonen1, Atte Antikainen1, Anu Kemppainen2, Jussi Minkkinen3, Olli Oja3 and Veli-Tapani Kuokkala1

ELSEVIER WEAR Wear 186-187 (1995) 179-188 Sand erosion of wear-resistant materials: Erosion in choke valves K. Haugen, O. Kvernvold, A. Ronold, R. Sandberg Det Norske Veritas Industry HISS, Hovik, N-1322, Norway Abstract Sand particles from oil and gas production may cause considerable erosion damage in critical parts of transport and …

Erosion – Corrosion. Erosion can also occur in combination with other forms of degradation, such as corrosion. This is referred to as erosion-corrosion. Erosion corrosion is a material degradation process due to the combined effect of corrosion and wear. Nearly all flowing or turbulent corrosive media can cause erosion corrosion.

It can provide resistance to heat, erosion, pitting, and general wear. 103 Many investigations done on the erosion–corrosion behavior of metallic and polymeric based protective coatings. 104, 105 …

LOCTITE ® wear prevention for corrosion & erosion resistance is designed to protect equipment against extreme chemical attack and corrosion under typical dry service temperatures up to 150 F. LOCTITE ® PC 7227 ™ is an ultra-smooth brushable epoxy resin system that offers protection against turbulence, chemical attack, abrasion, and corrosion.

Laser surface alloying (LSA), with Wallex-50 and Tribaloy-700 powders, and laser transformation hardening (LTH) reduced the silt erosion rate in 16Cr-5Ni steel. Slurry erosion wear tests were conducted on 16Cr-5Ni steel, LSA-modified steel, and LT-hardened steel at different angles of impingement and velocities at a constant size of …

Wear is a natural phenomenon that occurs when two sliding surfaces interact with each other under load, ultimately resulting in a progressive loss of material. Therefore, wear is defined as the removal of material from a solid surface due to mechanical action exerted by another solid. The wear resistance of a material indicates how resistant an ...

Introduction. Erosive tooth wear is the loss of tooth tissue due to a chemical–mechanical process, in which extrinsic (dietary) and intrinsic (gastric) acids interact with attrition and/or abrasion 1.The prevalence of this alteration is high and seems to be increasing 2–4.The ideal treatment for erosive tooth wear is based on early …

Special Issue Information. Dear Colleagues, Material degradation caused by erosion processes concerns many elements and machines. This occurs in water turbines and pumps, steam turbines, as well as wind turbines, i.e., machines working in the so-called renewable energy. Devices from the automotive and even aviation industries are also …

As a low-cost solution, wear-resistant coatings (WRC) are commonly employed to protect the structure from erosive-wear. However, these coatings too have …

Chemical weathering is the creation of sediment through chemical means. For example, acid rain can react with rocks, dissolving them. Erosion occurs when water transports sediment from one place to another. For example, a river can carry mud downstream. In general, water has more erosional power when it flows faster and has more volume.

The differential pressure generated on two sides of the ridge between adjacent grooves, as well as the area decrease of erosion caused by the "shaded effect," may be the cause of the erosion resistance. The results of this study can provide new insight into the active erosive wear resistance method of mechanical components.

Ceramic coatings can be effective at controlling high-temperature erosive wear, as they offer several benefits such as high hardness, thermal stability, thermal …

Surface Hardness and Wear Resistance. Hardness is important from an engineering standpoint because resistance to wear by either friction or erosion by steam, oil, and water generally increases with hardness. If the hardness of the material is higher than that of the abrasive material, less wear rate will occur.

According to the theory of erosion wear, soluble magnesium aluminum alloy belongs to the ductility of metal material, the largest erosion angle of 20°–40°. In order to further clear the erosion resistance of soluble magnesium alloy, the relationship between weight change and erosion angle is analyzed in this paper, and the analysis results ...

The velocity distribution and surface pressure distribution on the surface of rippled and plate samples were analysed by FLUENT software, and the results showed …

By using rare earth elements as nucleating agents, eutectic carbide and microstructure were refined to improve the wear resistance of wear-resistant cast iron. X. Liu [18] et al. found that La 2 O 3 can serve as the nucleation site for eutectic M 7 C 3 in KmTBCr26, refining eutectic carbides and improving the erosion and wear resistance …

The mechanisms of erosive wear span a continuum from single-particle impact to the sliding of a compact bed of slurry particles, here referred to as sliding-abrasion wear. The majority of actual slurry erosion processes fall somewhere between, where a dense mixture of solids and fluid interact with the wetted surfaces (and each other) in a …

The erosion rate of a material is generally related to its hardness, which, when increases, is a beneficial factor in increasing wear, cavitation, and erosion-corrosion resistance [8,178]. However, other authors defend that for each structure can be a linear relationship between hardness and erosion wear resistance, but the microstructure of ...

Coefficient of friction (between 0.3 and 0.5) and wear resistance (10− 6–10− 7 mm³/Nm) were comparable with the wear resistant SiC materials. View Show abstract

To prepare wear-resistant concrete, the hardness would be considered first, then improve the density and interfacial bond strength corresponding to abrasive wear and fatigue wear/adhesion wear, respectively. ... Abrasion erosion characteristics of concrete made with moderate heat Portland cement, fly ash and silica fume using sandblasting …

The production of wear- and erosion-resistant materials for various application requirements has traditionally been accomplished by incorporating modest quantities of alloying elements into the base material and customizing the heat treatment, especially for alloys. A balance between mechanical characteristics and corrosion …

Erosive wear takes place when hard solid particles impact on a surface (Tilly, 1977; Hutchings, 1992; Charles et al., 1997) and material loss due to erosion E is measured as the ratio of the mass of removed material with respect to the mass of erosive particles. Erosive wear is due to the impact of hard particles on surfaces. The erosion processes …

Erosion wear resistance and impact-induced phase transformation of titanium alloys TA2 (pure Ti), TC4 (Ti–6Al–4V) and TC11 (Ti–6.5Al–3.5Mo–1.5Zr–0.3Si) were investigated using a slurry jet tester. The slurry erosion wear resistance of TA2 is comparable to that of 304 stainless steel, especially at the impingement angle 90°. …

The investigations showed excellent wear-resisting performance of ceramic coatings, which is better than wear-resistance of stainless steel, cast iron and high chrome alloy steel. But the excellent wear-resisting performance could not guarantee a good erosion-resisting performance. The ceramic coatings' anti-erosion performances were …

Erosion wear is a process of progressive removal of material from a target surface due to repeated impacts of solid particles. The particles suspended in the flow of solid-liquid mixture erode the wetted passes limiting the service life of the equipment used for the slurry transportation system. ... Hardness and wear resistance is significantly ...