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Journal articles on the topic 'Blade coating'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Qu, Bin, Zhou Sun, Fang Feng, Yan Li, Guoqiang Tong, and Rana Shahzad Noor. "Preparation and Anti-Icing of Hydrophobic Polypyrrole Coatings on Wind Turbine Blade." International Journal of Rotating Machinery 2020 (February 11, 2020): 1–9. http://dx.doi.org/10.1155/2020/8626457.

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This paper describes the method of preparing strong hydrophobic polypyrrole (PPy) on wind turbine blades. The water contact angle of strong hydrophobic PPy coatings was 127.2°. The strong hydrophobic PPy coatings exhibited excellent anti-icing properties. The maximum icing weight of strong hydrophobic PPy coating blade was almost 0.10 g while the maximum icing weight of no coating blade was found to be 26.13 g. The maximum icing thickness of a strong hydrophobic PPy coating blade was only 1.08 mm. The current research will provide a better technique to create anti-icing coatings on wind turbin

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2

Ułanowicz, Leszek, and Andrzej Dudziński. "Two-Layer Heat-Resistant Protective Coatings for Turbine Engine Blades." Coatings 13, no. 3 (2023): 588. http://dx.doi.org/10.3390/coatings13030588.

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One of the most important factors for increasing the durability of turbine engines is the use of turbine blades characterized by the best possible convergence of the thermophysical properties of the protective coating and the base material of the blade. The aim of the research was to evaluate the heat resistance of prototype two-layer protective coatings applied to turbine blades. The inner layer of the coating enables shaping the thermophysical convergence of the coating and the base material of the blade. The outer layer is used for thermal protection of the blade material. The inner layer w

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3

Tabakoff, W., and M. Metwally. "Coating Effect on Particle Trajectories and Turbine Blade Erosion." Journal of Engineering for Gas Turbines and Power 114, no. 2 (1992): 250–57. http://dx.doi.org/10.1115/1.2906580.

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Gas turbine engines operating in dusty environments are exposed to erosion and performance deterioration. In order to improve the erosion resistance, nickel and cobalt superalloy blades and vanes are widely used in the hot section of gas turbines. Protective coatings have been used to enhance superalloy resistance to hot erosion. An investigation has been conducted to study coal ash particle dynamics and resulting blade erosion for both uncoated and coated blades of a two-stage axial flow gas turbine. A quasi-three-dimensional flow solution is obtained for each blade row for accurate computati

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4

Jia, Yu Liang, Yun Song Zhao, Yu Shi Luo, Shuai Yang, Jian Wei Xu, and Ding Zhong Tang. "Effects of Coating on Surface Recrystallization of DD6 Single Crystal Blades." Materials Science Forum 747-748 (February 2013): 483–88. http://dx.doi.org/10.4028/www.scientific.net/msf.747-748.483.

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The fully heat-treated DD6 single crystal turbine blades were treated in three ways: (1) surface grinding, without coating; (2) firstly surface grinding, then surface coated with HY3(NiCrAlY) anti-oxidation coating; (3) after surface grinding, coated surface with the bond layer of NiCrAlY and top layer of YSZ(Y2O3stabilize ZrO2) for the double-layer thermal barrier coatings. All these three experimental blades were treated with vacuum heat-treatment at 1120°C for 4h. The effects of coating on surface recrystallization of single-crystal blades have been investigated. The results indicate that:

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5

Khuengpukheiw, Ronnarit, Charnnarong Saikaew, and Anurat Wisitsoraat. "Wear resistance of HVOF sprayed NiSiCrFeB, WC-Co/NiSiCrFeB, WC-Co, and WC-Cr3C2-Ni rice harvesting blades." Materials Testing 63, no. 1 (2021): 62–72. http://dx.doi.org/10.1515/mt-2020-0009.

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Abstract In this work, NiSiCrFeB, WC-Co/NiSiCrFeB, WC-Co, and WC-Cr3C2-Ni coatings were sprayed on rice harvesting blade surfaces using a high velocity oxygen fuel (HVOF) process. Each of the rice harvesting blades was sprayed with one of four coating materials using different spraying durations. The effects of coating materials and spraying durations on the average values of coated blade volume loss, hardness and surface roughness (Ra) were studied through real rice-harvesting field tests. Analysis of variance (ANOVA) and a multiple comparison approach with Tukey’s test were used in order to

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6

Góral, Marek, Maciej Pytel, Ryszard Filip, and Jan Sieniawski. "The Influence of Turbine Blade Geometry and Process Parameters on the Structure of Zr Modified Aluminide Coatings Deposited by CVD Method on the ZS6K Nickel Superalloy." Solid State Phenomena 197 (February 2013): 58–63. http://dx.doi.org/10.4028/www.scientific.net/ssp.197.58.

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The Zr modified aluminide coatings is an alternative concept for replacing Pt-modified aluminide bondcoat for thermal barrier coatings. In the paper the influence of process parameters on the chemical composition and the thickness of aluminide coatings will be presented. The zirconia-doped aluminide coating was deposited on turbine blades made from ZS6K nickel superalloy during the low-activity CVD process. In recent work the influence of turbine blade geometry on thickness of coating was observed. The thickest coating was observed on the trailing and leading edge on the blade cross-section. I

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7

Wang, Jian, Jin Gao, Yong Zhang, and Hongmei Cui. "Analysis of the Sand Erosion Effect and Wear Mechanism of Wind Turbine Blade Coating." Energies 17, no. 2 (2024): 413. http://dx.doi.org/10.3390/en17020413.

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The wind–sand climate prevalent in the central and western regions of Inner Mongolia results in significant damage to wind turbine blade coatings due to sand erosion. This not only leads to a decline in power generation but also poses safety risks. This study replicated the wind–sand environment of Alashan and numerically simulated the erosion and wear process of the blade coatings of a 1.5 MW horizontal axis wind turbine under rotational conditions using the DPM model. Additionally, erosion tests were conducted on the operating wind rotor in a wind tunnel. The simulation results demonstrate t

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8

Suder, K. L., R. V. Chima, A. J. Strazisar, and W. B. Roberts. "The Effect of Adding Roughness and Thickness to a Transonic Axial Compressor Rotor." Journal of Turbomachinery 117, no. 4 (1995): 491–505. http://dx.doi.org/10.1115/1.2836561.

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The performance deterioration of a high-speed axial compressor rotor due to surface roughness and airfoil thickness variations is reported. A 0.025 mm (0.001 in.) thick rough coating with a surface finish of 2.54–3.18 rms μm (100–125 rms μin.) is applied to the pressure and suction surface of the rotor blades. Coating both surfaces increases the leading edge thickness by 10 percent at the hub and 20 percent at the tip. Application of this coating results in a loss in efficiency of 6 points and a 9 percent reduction in the pressure ratio across the rotor at an operating condition near the desig

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9

Ułanowicz, Leszek, and Andrzej Dudziński. "Heat-Resistant Protective Coatings Applied to Aircraft Turbine Blades by Supersonic Thermal Spraying and Diffusion-Aluminizing." Coatings 14, no. 12 (2024): 1554. https://doi.org/10.3390/coatings14121554.

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Aircraft engine turbine blades are covered with protective coatings. These coatings should have the best thermophysical convergence with the blade’s parent material. The aim is to create heat-resistant covering for aircraft engine turbine blades made of nickel superalloy. The results of tests on coatings are presented; the inner layer is an adhesive layer of the MeCrAlY type, applied to the blade by means of supersonic thermal spraying, and the outer layer is diffusion-aluminized in the first case using the Vapor Phase Aluminizing method, and in the second using the suspension method. The inne

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10

Xue, Yuantian, Changcheng Song, and Chenlai Yang. "Research on wind turbine blade coating erosion modeling based on Generic modeling." Journal of Physics: Conference Series 2838, no. 1 (2024): 012034. http://dx.doi.org/10.1088/1742-6596/2838/1/012034.

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Abstract In order to improve the accuracy of the prediction of the erosion phenomenon of wind turbine blade coatings, this study incorporates the wind-sand erosion data of wind turbine blade coating flat specimens obtained through wind tunnel experiments on the basis of the widely used generalized erosion model. A prediction model that accurately reflects the erosion and wear characteristics of wind turbine blade coatings is constructed using the least squares method. All the function parts included in the model showed favorable fitting effects, and the error between the model prediction resul

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11

Liu, Bo, Zhiyuan Liu, Yan Li, and Fang Feng. "A Wind Tunnel Test of the Anti-Icing Properties of MoS2/ZnO Hydrophobic Nano-Coatings for Wind Turbine Blades." Coatings 13, no. 4 (2023): 686. http://dx.doi.org/10.3390/coatings13040686.

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Wind turbines operating in cold regions are prone to blade icing, which seriously affects their aerodynamic characteristics and safety performance. Coatings are one of the effective solutions to the icing problem on wind turbine blades. In this study, MoS2/ZnO/PDMS superhydrophobic nano-anti-icing coatings were prepared using the hydrothermal method and the liquid phase method. SEM revealed that the MoS2/ZnO coating was a typical superhydrophobic nanostructure with an ultra-thin sheet-like morphology of clusters and a hilly nano-rough structure, with contact angles (CA) of 152.1° and 4.7° with

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12

Mehri Khansari, Nabi, and Amin Moghtader-ahar. "The Effect of Composite Coating on Dynamic Behavior of Glass/Epoxy and Carbon/Epoxy Archimedes Wind Turbine Blade: Considering Fluid Solid Interaction." Journal of Design Against Fatigue 3, no. 1 (2025): 1–18. https://doi.org/10.62676/jdaf.2025.3.1.10.

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This study investigates the enhancement of dynamic behavior of traditional metallic blades in Archimedes Spiral Wind Turbines (ASWT) through the use of composite coatings, particularly carbon/epoxy and glass/epoxy. The study employs a combination of modal analysis and numerical fluid-structure interaction (FSI) analysis to assess the aero-elastic performance and structural stability of both coated and uncoated metal blades under diverse aerodynamic conditions. Modal analysis highlights the impact of composite coatings on the natural frequencies and mode shapes of the blades, ensuring safety an

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13

Ghosh, S., M. Saha, S. Bakshi, and S. Mondal. "Effect of Thermal Barrier Coating in Sustainable Power production of Gas Turbines." IOP Conference Series: Materials Science and Engineering 1187, no. 1 (2021): 012034. http://dx.doi.org/10.1088/1757-899x/1187/1/012034.

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Abstract Gas turbine play an important role in producing power for aviation industries. A sustainable operating life with high efficiency of a gas turbine requires very high temperature operation. The increase in thermal conductivity with temperature results in high thermal stress which leads to permanent deformation reducing blade life and efficiency. A thermal barrier coating is crucial to remove such detrimental effects. In the present work, an assessment of gas turbine blade materials has been carried out to study the effect of various coating techniques to improve longevity of blades. Coa

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14

Balushok, Konstantin, Oleksandr Seliverstov, Oleksandr Prokopenko та Sergii Sakhno. "Оцінка можливості виявлення тріщин під час контролю ЛЮМ1-ОВ на лопатках турбін після нанесення комплексних жаростійких покриттів". Aerospace Technic and Technology, № 5 (25 жовтня 2024): 46–52. http://dx.doi.org/10.32620/aktt.2024.5.05.

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Currently, gas turbine engines (GTD) are being improved and made more powerful by increasing the temperature of the gases in front of the turbine and increasing the air compression ratio in the compressor. In the aviation industry, nickel heat-resistant alloys such as ЖС6У-ВІ, ЖС26-ВІ, ЖС32-ВІ, etc. are used to manufacture GTD blades. Despite their high properties in terms of corrosion resistance and heat resistance, the service life of GTD blades and their protection against oxidation and corrosion damage is ensured by applying coatings using various technologies both to the flowing surface o

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15

Li, Ke, Zhiliang Xue, Danqing Jiang, et al. "Study on Durability and Dynamic Deicing Performance of Elastomeric Coatings on Wind Turbine Blades." Coatings 14, no. 7 (2024): 870. http://dx.doi.org/10.3390/coatings14070870.

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Durable elastomeric deicing coatings were developed for the anti-icing and deicing of wind turbine blades in this study. Our developed deicing coatings demonstrated extremely low ice adhesion strength (~15 kPa). Silica was added to enhance the icephobic surfaces’ durability. The life of the deicing coating with silica was extended by 1.2 times. After 168 h of xenon lamp irradiation, there were no significant changes in the chemical composition of the coatings. Due to the increasing roughness and the decreasing tensile modulus, the contact angle of the aged coatings decreased by 14°. Further ou

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16

Wang, Jiao, Tianyu Guo, Wenyue Liu, Ziwei Wang, and Yuehao Zhang. "Vibration Analysis and Damping Effect of Blade-Hard Coating Composite Structure Based on Base Excitation." Materials 16, no. 15 (2023): 5432. http://dx.doi.org/10.3390/ma16155432.

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Hard coatings are widely employed on blades to enhance impact resistance and mitigate fatigue failure caused by vibration. While previous studies have focused on the dynamic characteristics of beams and plates, research on real blades remains limited. Specifically, there is a lack of investigation into the dynamic characteristics of hard-coated blades under base excitation. In this paper, the finite element model (FEM) of blade-hard coating (BHC) composite structure is established based on finite element methods in which the hard coating (HC) material and the substrate are considered as the is

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17

Fois, N., M. Watson, and MB Marshall. "The influence of material properties on the wear of abradable materials." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 231, no. 2 (2016): 240–53. http://dx.doi.org/10.1177/1350650116649528.

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In aero-engines it is possible for the blades of the compressor, turbine or fan to incur into their casings. At these interfaces a lining of composite abradable material is used to limit damage to components and thereby sustain the efficiency and longevity of the engine as a whole. These composite materials must have good abradability and erosion resistance. Previously, the wear mechanisms at the contact between the blade and the coating have been characterised using stroboscopic imaging and force measurement on a scaled test-rig platform. This work is focused on the characterisation of the we

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18

Ngoret, Joshua K., and Venkata P. Kommula. "Role of Aluminide coating degradation on Inconel 713 LC used for Compressor Turbines (CT) of Short-haul Aircrafts." MRS Advances 3, no. 38 (2018): 2281–96. http://dx.doi.org/10.1557/adv.2018.207.

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ABSTRACTThis paper investigates the role degradation of protective diffusion aluminide coating on Inconel 713LC used for CT blades of short-haul aircraft fleet played in having the blades prematurely retired from service at 6378 hours, as opposed to their pre-set service time of 10000 hours. The blade samples were subjected to various examinations; X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analyse at the; tips, airfoil, as well as the base, transverse and longitudinal, sectioned and unsectioned. As affirmed by

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19

Pryor, Sara C., Jacob J. Coburn, and Rebecca J. Barthelmie. "Spatiotemporal Variability in Wind Turbine Blade Leading Edge Erosion." Energies 18, no. 2 (2025): 425. https://doi.org/10.3390/en18020425.

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Wind turbine blade leading edge erosion (LEE) reduces energy production and increases wind energy operation and maintenance costs. Degradation of the blade coating and ultimately damage to the underlying blade structure are caused by collisions of falling hydrometeors with rotating blades. The selection of optimal methods to mitigate/reduce LEE are critically dependent on the rates of coating fatigue accumulation at a given location and the time variance in the accumulation of material stresses. However, no such assessment currently exists for the United States of America (USA). To address thi

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20

Weeks, Lisa, Pat Gane, Tony Lyons, and Douglas Bousfield. "Operational limits of blade coating associated with high aspect ratio pigments: Part I—bench top blade coater." February 2019 18, no. 2 (2019): 123–30. http://dx.doi.org/10.32964/tj18.2.123.

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Operational issues, such as stalagmite formations, scratches, or spits, develop during blade coating of high solids coatings at high web speeds. Coatings that contain high aspect ratio pigments exhibit these difficulties at lower solids concentrations and slower machine speeds than coatings comprised of more spherical shaped pigments. There are a number of potential reasons behind this phenomenon, but a clear mechanism is not well established. Using a bench top blade coater without a base sheet, the goal of this study is to understand the operational limits that occur due to the coating suspen

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21

Feng, Fang, Ruixue Wang, Wei Yuan, and Yang Li. "Study on Anti-Icing Performance of Biogas-Residue Nano-Carbon Coating for Wind-Turbine Blade." Coatings 13, no. 5 (2023): 814. http://dx.doi.org/10.3390/coatings13050814.

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Icing is a common phenomenon in nature and has a serious impact on wind turbines. Anti-icing coatings have become a major focus of industrial applications and academic research. In this study, a hydrophobic nano-carbon coating was prepared from corn-straw-biogas residue. The characterization results of the SEM, BET, FTIR, and XRD analyses showed that the hydrophobic nano-carbon has good pore structure and crystal structure. The hydrophobic and anti-icing effects of the carbon were confirmed by contact-angle measurements and anti-icing experiments. The ice thicknesses of the hydrophobic nano-ca

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22

Anzai, Seiichi. "Blade Coating Technology." JAPAN TAPPI JOURNAL 66, no. 9 (2012): 954–58. http://dx.doi.org/10.2524/jtappij.66.954.

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23

Giacomin, A. J., J. D. Cook, L. M. Johnson, and A. W. Mix. "Flexible blade coating." Journal of Coatings Technology and Research 9, no. 3 (2011): 269–77. http://dx.doi.org/10.1007/s11998-011-9366-6.

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24

Sun, Guojin, Zhenggui Li, and Qi Wang. "Optimization of Lost Foam Coating Performance: Effects of Blade Shape, Stirring Speed, and Drying Temperature on Viscosity, Coating Weight, and Surface Morphology." Coatings 14, no. 9 (2024): 1106. http://dx.doi.org/10.3390/coatings14091106.

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The current investigation focuses on the viscosity, coating weight, and surface characteristics of lost foam casting coatings, examining the effects of blade shape, stirring speed, and stirring time. A systematic analysis was conducted to determine how different stirring speeds and durations influenced coating weight and viscosity. The results indicate that the blade shape has a considerable impact on the uniformity and efficacy of the coating, with some designs being far more effective in reaching the optimal viscosity and coating weight through uniformly distributed mixing. Results were cons

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25

Ch. Ramulu, A.K. Dave, I. Srinivas, and Ashish S. Dhimate. "Effect of Electro-spark Coating on Wear Loss of Rotavator Blades." Journal of Agricultural Engineering (India) 55, no. 3 (2018): 12–20. http://dx.doi.org/10.52151/jae2018553.1657.

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Rotavator has been increasingly used in agricultural fields. Under abrasive conditions for ground engaging tools, rotavator blades require frequent replacement resulting to increasing machine downtime and maintenance cost. Electric spark coating (ESC) technique was evaluated on two different commercially available blades with tungsten carbide, Stellite-21 and chromium carbide coating materials to improve their life. Coating materials were applied with three different thicknesses on the blades.Wear loss of the second blade with tungsten carbide 4th mode treatment was about 0.80 % per hour less

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26

Kováč, Ján, Pavol Harvánek, Jozef Krilek, Tomáš Kuvik, and Ján Melicherčík. "Analysis of cutting conditions in the process of cross-cutting wood by circular saws." BioResources 16, no. 1 (2020): 1029–41. http://dx.doi.org/10.15376/biores.16.1.1029-1041.

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An analysis was conducted of the effects of cutting conditions in the cross-cutting of wood using circular saws. Gradual wear of the saw blade cutting wedges impacted the entire cutting process. Two different types of circular saw blades were used. One blade type featured sintered carbide tips and 54 saw blade teeth, whereas the other had high-speed steel with 56 teeth; both saw-blades were 600 mm in diameter with a rake angle of 20°. The two wood species were spruce (Picea abies) and beech (Fagus sylvatica). During sawing, the timber was fed at a velocity of vf = 6 and 12 m·min-1. The cutting

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27

Wang, Zhi De, Jing Li, Zhen Wei Guan, Yu Zhong Zhang, Yan Wang, and Zhi Yong Wang. "Fabrication and Evaluation of an Amino Modified Epoxy Coating for Anti-Scouring and Anti-Corrosion Application." Materials Science Forum 815 (March 2015): 684–89. http://dx.doi.org/10.4028/www.scientific.net/msf.815.684.

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Excellent performance is necessary for compressor blade when aircraft engine serves in harsh environment, where it will go through scouring from jet-stream and extraneous sand, shaking of blades and corrosion from corrosive medium, taking moisture, salt, SO2 for example. Due to the shortage of scouring resistant and anti-corrosion property, shedding of damaged coating is a fundamental reason for the breakdown of aircraft engine blades, which is also the technique bottleneck that hinders the engineering application of compressor blades. Aiming at such problems, an amino modified epoxy coating w

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28

You, Huaqing. "Effect of thermal barrier coating on the thermal characteristic of turbine blade and its geometric optimization." Theoretical and Natural Science 14, no. 1 (2023): 62–77. http://dx.doi.org/10.54254/2753-8818/14/20240880.

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Thermal barrier coatings (TBC) and cooling structures are critical factors influencing the performance of aviation turbine blades. In order to investigate the effects of TBC and different cooling structures on the operating temperature and thermal stress of turbine blades, this study establishes a three-dimensional fluid-thermal-solid coupling model for aviation turbine blades. Based on this model, the study analyzes the effect of TBC thicknesses and different design architectures on the blade thermal characters, including temperature distribution and thermal stress analysis. Stress analysis i

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29

Mehta, Amrinder, Hitesh Vasudev, Sharanjit Singh, et al. "Processing and Advancements in the Development of Thermal Barrier Coatings: A Review." Coatings 12, no. 9 (2022): 1318. http://dx.doi.org/10.3390/coatings12091318.

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Thermal barrier coating is critical for thermal insulation technology, making the underlying base metal capable of operating at a melting temperature of 1150 °C. By increasing the temperature of incoming gases, engineers can improve the thermal and mechanical performance of gas turbine blades and the piston cylinder arrangement. Recent developments in the field of thermal barrier coatings (TBCs) have made this material suitable for use in a variety of fields, including the aerospace and diesel engine industries. Changes in the turbine blade microstructure brought on by its operating environmen

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Wang, Can Ming, Hong Fei Sun, Qiang Song, and Qiong Qiong Yan. "Application of Wear Resistant Coating Technology on Coating Blade." Key Engineering Materials 353-358 (September 2007): 1761–64. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.1761.

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Coating blade wears seriously in paper coating process. Wear mechanism was analyzed in this article. A new technology of surface coating process was introduced to increase the hardness of the edge of coating blade and thus to prolong its service life. Surface coating preparing process on blade was studied and metal-ceramic compound coating prepared successfully on the edge of coating blade with AT13 (Al2O3+13%TiO2) wear resistant material by plasma spraying process. NiCrAl alloy powder was used as under coat material. Microstructure of the coating is dense. The coating bonds well with the matr

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31

Kizuka, N., K. Sagae, S. Anzai, S. Marushima, T. Ikeguchi, and K. Kawaike. "Conceptual Design of the Cooling System for 1700°C-Class, Hydrogen-Fueled Combustion Gas Turbines." Journal of Engineering for Gas Turbines and Power 121, no. 1 (1999): 108–15. http://dx.doi.org/10.1115/1.2816296.

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The effects of three types of cooling systems on the calculated operating performances of a hydrogen-fueled thermal power plant with a 1,700°C-class gas turbine were studied with the goal of attaining a thermal efficiency of greater than 60 percent. The combination of a closed-circuit water cooling system for the nozzle blades and a steam cooling system for the rotor blades was found to be the most efficient, since it eliminated the penalties of a conventional open-circuit cooling system which ejects coolant into the main hot gas stream. Based on the results, the water cooled, first-stage nozz

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32

Anaraki, A. Pourkamali, J. Kadkhodapour, and N. Kangarani Farahani. "Study of solid particle impact effects and coating thickness on the erosion damage." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 16 (2014): 2861–70. http://dx.doi.org/10.1177/0954406214524546.

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The development of high performance coatings for the protection against erosion requires understanding of their complex failure mechanisms occurring during solid particle impact. In the present work, a numerical analysis is carried out to study the effect of particle diameter, particle velocity, and coating thickness on erosion damage of gas turbine blade coating caused by solid particle erosion. For this purpose, the performance assessment of turbine blade coating is done using scanning electron microscopic testing. Furthermore, simulation of the impact of a solid particle on a plate is perfo

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Rajasekar, N., P. M. Shivraj, C. J. Thomas Renald, K. Karthick, and M. P. Tamizhmani. "Thermal Analysis & Studies on Low Pressure Gas Turbine Blades Coated with Yitria Stabilized Zirconia (YSZ)." Advanced Materials Research 622-623 (December 2012): 1596–600. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1596.

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The thermal barrier coatings have many potential applications in the protection of gas turbine engine components, essentially the turbine blades.In this study micro analysis was carried out on Yitria Stabilized Zirconia(YSZ) coated turbine blades and the results are compared with the uncoated blades.We have used the atmosphere plasma sprayed thermal barrier coating with a thickness of 0.25mm to withstand the high temperature of about 2000 C.We observed that by increasing the thermal coating thickness of about 0.25mm cause to increase 50% of the surface temperature of the turbine blade,which in

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34

Єфанов, Володимир Сергійович, Олексій Олександрович Педаш, Ігор Андрійович Петрик, Володимир Валерійович Клочихин, Руслан Юрійович Фетісов та Ганна Миколаївна Лаптєва. "Вплив технології виготовлення випаровуємих катодів на якість іонно-плазмових покриттів лопаток турбін". Aerospace technic and technology, № 6 (29 листопада 2021): 31–38. http://dx.doi.org/10.32620/aktt.2021.6.04.

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The article considers coatings deposited on turbine blades via plasma vapor deposition (PVD) method with Ni-Cr-Al-Y cathodes obtained using powder metallurgy (PM) and electron beam remelting process (EBMR). The study analyzes the effect of cathodes manufacturing techniques on surface roughness of rotor turbine blades. Task: to examine a microstructure and chemical composition of the considered cathodes; to quantify a droplet phase of a heat-resistant coating of turbine blades subdivided into size-fractions. Methods used optical microscopy, SEM-analysis. Next results were obtained. In the micro

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Tabakoff, W., A. Hamed, and V. Shanov. "Blade Deterioration in a Gas Turbine Engine." International Journal of Rotating Machinery 4, no. 4 (1998): 233–41. http://dx.doi.org/10.1155/s1023621x98000190.

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A study has been conducted to predict blade erosion of gas turbine engines. The blade material erosion model is based on three dimensional particle trajectory simulation in the three-dimensional turbine flow field. The trajectories provide the special distribution of the particle impact parameters over the blade surface. A semi-empirical erosion model, derived from erosion tests of material samples at different particulate flow conditions, is used in the prediction of blade surface erosion based on the trajectory impact data. To improve the blade erosion resistance and to decrease the blade de

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Kováč, Ján, Tomáš Kuvik, Ján Melicherčík, and Jozef Krilek. "The Influence of the Coating on the Saw Blade on the Energy Intensity of Cross-Cutting of Wood." Coatings 12, no. 12 (2022): 1803. http://dx.doi.org/10.3390/coatings12121803.

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Cutting wood in the transverse direction is the most widespread in the logging process, and it is used in felling trees, shortening the length of trunks, and assortment production. In practice, it is particularly important that the entire wood processing process starts with the least energy-intensive process (i.e., the energy demand of the entire process). The aim of the study is to determine the effect of coatings on the energy demand of saw blades. The conditions of the experiment were taken from previous experiments. In the experiment, two types of saw blades of the same type, EN 41 9418 or

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Kupczyk, Maciej, Michał Leleń, Jerzy Józwik, and Paweł Tomiło. "Modeling Material Machining Conditions with Gear-Shaper Cutters with TiN0.85-Ti in Adhesive Wear Dominance Using Machine Learning Methods." Materials 17, no. 22 (2024): 5567. http://dx.doi.org/10.3390/ma17225567.

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This paper examines the challenges of machining structural alloy steels for carburizing, with a particular focus on gear manufacturing. TiN0.85-Ti coatings were applied to cutting tool blades to improve machining quality and tool life. The research, supported by mathematical modeling, demonstrated that these coatings significantly reduce adhesive wear and improve blade life. The Kolmogorov–Arnold Network (KAN) was identified as the most effective model comprehensively describing tool life as a function of cutting speed, coating thickness, and feed rate. The results indicate that gear productio

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Pranckh, F. R., and L. E. Scriven. "Elastohydrodynamics of blade coating." AIChE Journal 36, no. 4 (1990): 587–97. http://dx.doi.org/10.1002/aic.690360410.

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Cai, Jin, Hao Wu, and Xihui Shi. "Effect of Ultrasonic Shot Peening on Morphology and Structure of NiCrAlYSi Coatings on Superalloys for Blade Applications." Coatings 14, no. 8 (2024): 949. http://dx.doi.org/10.3390/coatings14080949.

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The study evaluated and compared the surface morphology, roughness, and coating structure of ultrasonic shot peening (USP)-treated samples of the NiCrAlYSi-coated GH4169 alloy used for turbine blades and discussed the influence of blade-surface roughness and coating thickness on aerodynamic performance. The NiCrAlYSi coating was deposited on the surface of the alloy using electron beam-physical vapor deposition (EB-PVD), and the NiCrAlYSi bond coat was subsequently surface treated at Almen intensities of 0.1 A, 0.15 A, and 0.2 A by USP. The results following USP treatment indicated that the bo

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Kachan, O., and S. Ulanov. "Features of the process of hot extrusion of blanks of the rotor blades of a GTE compressor." Innovative Materials and Technologies in Metallurgy and Mechanical Engineering, no. 1 (September 14, 2021): 41–46. http://dx.doi.org/10.15588/1607-6885-2021-2-7.

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Purpose. Improving the quality of manufacturing of blanks for compressor rotor blades by hot extrusion. Research methods and equipment. The research was carried out using a crank press with a force of 1000 kN, in split dies in accordance with a serial technological process. The dies were heated up to 150 ... 200 °С, to improve the work when extruding the blanks of the rotor blades made from the titanium alloy ВT8. The thickness of the copper coating was measured with an ИTMП-3 magnetic induction device with an error of ± 2 μm. X-ray spectral microanalysis was performed

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Liu, Guangyou. "Durability Analysis of Wind Turbine Blade Coating under Random Aeolian Sand." Journal of Physics: Conference Series 2459, no. 1 (2023): 012088. http://dx.doi.org/10.1088/1742-6596/2459/1/012088.

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Abstract Wind turbine has a poor working environment and suffered from Aeolian sand and rain for a long time, which results in serious damage to blade coating and greatly affects the later maintenance, the safe and stable operation of wind turbine. In this regard, this paper intends to use numerical simulation method to simulate the erosion process of blade coating under random Aeolian sand, and then study its durability in Aeolian environment. Taking Inner Mongolia as an example, the Weibull distribution wind speed model is established by using the measured wind speed data, and then the dynam

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Duramou, Yann, Rodolphe Bolot, Jean Louis Seichepine, et al. "Relationships between Microstructural and Mechanical Properties of Plasma Sprayed AlSi-Polyester Composite Coatings: Application to Abradable Materials." Key Engineering Materials 606 (March 2014): 155–58. http://dx.doi.org/10.4028/www.scientific.net/kem.606.155.

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Abradable coatings are widely used within aeroengines. These materials are applied onto the inner surface of compressor and turbine shroud sections using thermal spray processes, coating the periphery of the blade rotation path. The functionality of an abradable seal is to wear preferentially when rotating blades come into contact with it, while minimizing the over-tip clearance, and improving the overall efficiency of the engine. This study is concerned with the relationships between the microstructure and mechanical properties of atmospheric plasma sprayed AlSi-Polyester composite coatings.

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wu, Sheng Jun, Hao Wei, Gang Xiong, Wei Feng, and Hao Ban. "Research on the Effect of Thermal Coating Temperature on the Fatigue Performance of Wind Turbine Blade Bolts." Applied Mechanics and Materials 921 (April 26, 2024): 75–84. http://dx.doi.org/10.4028/p-xpt5xz.

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The bolted connection of wind turbine blades is a bridge for transmitting blade loads. In recent years, with the rapid increase in blade length, the fatigue load at the blade root has also been continuously increasing. The bolt fatigue strength has always been a bottleneck in the interface design between blade and wind turbine hub. However, industry standards still hold conservative values for the S/N curve of bolt fatigue, and there are unclear requirements for thermal coatings, The S/N curves provided by the standards in different periods do not meet the actual processing requirements of bol

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Lungu, Sergiu, Sevasti Mitsi, Antonescu Ion, et al. "Research on the Growth Sustainability Active Organs of Agricultural Machinery." Applied Mechanics and Materials 809-810 (November 2015): 634–39. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.634.

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One way to increase the durability of the machine is active surface coatings using new technological processes such as thermal spray coatings, especially the plasma jet. Was made by coating nickel plating process of the plasma jet knife blade for removal of a group from the grower. In order to emphasize increasing the reliability of these knives by coating with nickel, they were mounted on a cultivator with a lot of knives witness, uncovered, and have been used extensively. Data on wear two groups of knives, coated with nickel and witness uncovered were recorded by photometric methods were pro

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Sadowski, Tomasz, and Daniel Pietras. "Heat Transfer Process in Jet Turbine Blade with Functionally Graded Thermal Barrier Coating." Solid State Phenomena 254 (August 2016): 170–75. http://dx.doi.org/10.4028/www.scientific.net/ssp.254.170.

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In the jet engine the temperature of exhaust gases should be as high as possible, from the point of view of its efficiency. The value of this temperature is limited by toughness of the turbine blades material. Superalloy Inconel 625, which is commonly used in aerospace industry, indicates 13% less yield point in 800OC than in 25OC. The temperature of exhaust gases can reach 1500OC. The blade material has to be protected due to this fact. The one possibility of turbine blade protection is using of thermal barriers coatings (TBC). The coating has a very low thermal conductivity and therefore it

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Svoren, Jan, Lubomir Javorek, and Lubomir Nascák. "Interchange of Heat in Saw Disc Body During Cutting." International Journal of Engineering and Management Sciences 4, no. 1 (2019): 488–94. http://dx.doi.org/10.21791/ijems.2019.1.60.

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The paper presents the experimental results of a research aimed at the distribution of the temperature on the circular saw blade body. The temperature was measured at two distances from the centre of the circular saw blade body (70 mm, 140 mm) by means of an infrared thermometer. Two circular saw blades with the diameter of 350 mm and a variable adjustment of the body (with slots and without the coating, with both slots and coating) were used for the longitudinal sawing of the spruce wood (Picea excelsa) with the thickness of h = 37 mm. Feed speeds ware vf1 = 14 mpm, vf2 = 17 mpm and vf3 = 20

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Park, Jun-Ik, Hyun-Seok Jeong, Premkumar Vincent, et al. "Effect of High-Speed Blade Coating on Electrical Characteristics in Polymer Based Transistors." Journal of Nanoscience and Nanotechnology 20, no. 9 (2020): 5486–90. http://dx.doi.org/10.1166/jnn.2020.17615.

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We explore the effect of high-speed blade coating on electrical characteristics of conjugated polymer-based thin-film transistors (TFTs). As the blade-coating speed increased, the thickness of the polymer thin-film was naturally increased while the surface roughness was found to be unchanged. Polymer TFTs show two remarkable tendencies on the magnitude of field-effect mobility with increasing blade-coating speed. As the blade-coating speed increased up to 2 mm/s, the fieldeffect mobility increased to 4.72 cm2V−1s−1. However, when the coating speed reached 6 mm/s beyond 2 mm/s, the field-effect

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RENVALL, STIG, and STEFAN KUNI. "Coat weight control in bent blade mode." May 2013 12, no. 5 (2013): 31–38. http://dx.doi.org/10.32964/tj12.5.31.

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Bent blade metering is the most common method used in board coating. As board machine speeds today have increased, new requirements have been set on blade geometry and accuracy of blade adjustments. A good understanding of the blade parameters and physical phenomena around the blade tip area is, therefore, necessary. Automatic coat weight profile adjustment using feedback from the coat weight measurement system is a great tool to improve the cross-direction coating uniformity and reel condition. In bent blade coating, however, the parameters for adjusting the cross-direction profilers need to

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Lu, Xin, Jie Tang, and Liwen Wang. "Simulation and Experimental Study on Rotor System Dynamic Analysis with the Blade-Coating Rubbing Faults." Shock and Vibration 2021 (September 10, 2021): 1–15. http://dx.doi.org/10.1155/2021/2442760.

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In the modern turbo-machinery, reducing the clearance between the blade tip and casing inner face is an effective method to improve the power performance, but the clearance reduction leads to increased risk of blade-casing rubbing. In this paper, a blade-coating rubbing force model which considered the abradable coating scraping is developed to simulate the rotor system dynamic characteristics at blade-casing rubbing faults with abradable coating. An experimental tester is established to simulate the rotor system blade-casing rubbing faults; the AlSi-ployphenyl ester abradable coating is prepa

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Purvee, Ariunbolor, Gunther C. Stehr, Battsengel Baatar, and Dulguun Narmandakh. "Wear Evaluation Results from a Practical Trial of Laser-Coated Pump Parts in the Mineral Processing Industry." Materials Science Forum 1073 (October 31, 2022): 93–101. http://dx.doi.org/10.4028/p-ueoek2.

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Slurry pumps in the mineral processing industry are parts that erode very quickly. Erosion is predominantly caused by abrasion from fine particles of the ores. Because of this, the erosion process takes place on impeller blades and cover plates that directly contact the slurry. This paper evaluates the wear of laser-coated pump parts in the mineral processing industry. Building upon previous research conducted by the authors, we aimed to determine the best laser coating powder system to extend the useful life of specific laser-coated pump parts. Four blades of a slurry pump impeller were each

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