scholarly journals Study of Solid Particle Erosion on Helicopter Rotor Blades Surfaces

2020 ◽  
Vol 10 (3) ◽  
pp. 977 ◽  
Author(s):  
Xupeng Bai ◽  
Yongming Yao ◽  
Zhiwu Han ◽  
Junqiu Zhang ◽  
Shuaijun Zhang
Keyword(s):  
Solid Particle ◽  
Erosion Rate ◽  
Erosion Resistance ◽  
Angle Of Attack ◽  
Rotor Blades ◽  
Helicopter Rotor ◽  
Particle Collision ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Helicopter Rotor Blades

In this study, titanium alloy (Ti-4Al-1.5Mn), magnesium alloy (Mg-Li9-A3-Zn3), or aluminum alloy (Al7075-T6) were used to construct the shell model of helicopter rotor blade to study the solid particle erosion of helicopter rotor blades. The erosion resistance of the three materials at different angles of attack (6°, 3°, or 0°) and particle collision speeds (70, 150, or 220 m/s) was examined using the finite volume method, the discrete phase method, and erosion models. In addition, the leading edge of the helicopter blades was coated with two types of bionic anti-erosion coating layers (V- and VC-type), in an attempt to improve erosion resistance at the angles of attack and particle collision speeds given above. The results showed that Ti-4Al-1.5Mn had the best erosion resistance at high speed, followed by Al7075-T6 and Mg-Li9-A3-Zn3. The angle of attack appeared to affect only the surface area of the blade erosion, while the erosion rate was not affected. Finally, the results of this article showed that the V-type bionic coating had better erosion resistance than the VC-type coating at the same impact speeds. The angle of attack did not have a significant effect on the erosion rate of the bionic coating.

scholarly journals Research results of solid particle erosion resistance of 20GL steel with boriding

2021 ◽  
Vol 2124 (1) ◽  
pp. 012012
Author(s):  
A B Tkhabisimov ◽  
O S Zilova ◽  
O V Kalakutskaya
Keyword(s):  
Surface Modification ◽  
Solid Particle ◽  
Erosion Resistance ◽  
Angle Of Attack ◽  
Experimental Studies ◽  
Maximum Level ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Boriding Process ◽  
20Gl Steel

Abstract The paper presents the results of experimental studies of solid particle erosion resistance of 20GL structural steel samples with two different variants of surface modification based on the boriding process. Characteristics of modified layers such as depth, composition, microhardness were determined. Tests were carried out according to ASTM G76-13 standard at air-abrasive flow rate of 170 m/s, flow attack angles of 30º and 90°, sample surface temperature of 25ºC. It was found that both considered options of surface modification at an angle of attack of 90 ° flow do not worsen the abrasion resistance of 20GL steel samples, and at flow attack angle of 30 ° increase not less than 8 times. A change in the wear pattern of boriding samples with an increase in the angle of attack from 30° to 90° is noted. As after the boriding process surface embrittlement was observed, the angle of maximum wear for 20GL steel with boriding became equal to 90° in contrast to steel without treatment, where the maximum level of wear is observed at 30°. Thus, the change of fracture type from plastic to brittle was revealed, which should be taken into account in full-scale operation of the treated parts. The obtained results indicate that the process of boriding of pump parts made of 20GL steel will increase their solid particle erosion resistance and extend their overhaul period.

Representative volume element-based simulation of multiple solid particles erosion of a compressor blade considering temperature effect

2019 ◽  
Vol 234 (8) ◽  
pp. 1173-1184
Author(s):  
Bijan Mohammadi ◽  
AmirSajjad Khoddami
Keyword(s):  
Finite Element ◽  
Solid Particle ◽  
Representative Volume Element ◽  
Erosion Rate ◽  
Compressor Blade ◽  
Volume Element ◽  
Solid Particles ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Representative Volume

Solid particle erosion is one of the main failure mechanisms of a compressor blade. Thus, characterization of this damage mode is very important in life assessment of the compressor. Since experimental study of solid particle erosion needs special methods and equipment, it is necessary to develop erosion computer models. This study presents a coupled temperature–displacement finite element model to investigate damage of a compressor blade due to multiple solid particles erosion. To decrease the computational cost, a representative volume element technique is introduced to simulate simultaneous impact of multiple particles. Blade has been made of Ti-6Al-4V, a ductile titanium-based alloy, which is impacted by alumina particles. Erosion finite element modeling is assumed as a micro-scale impact problem and Johnson–Cook constitutive equations are used to describe Ti-6Al-4V erosive behavior. In regard to a wide variation range in thermal conditions all over the compressor, it is divided into three parts (first stages, middle stages, and last stages) in which each part has an average temperature. Effective parameters on erosive behavior of the blade alloy, such as impact angle, particles velocity, and particles size are studied in these three temperatures. Results show that middle stages are the most critical sites of the compressor in terms of erosion damage. An exponential relation is observed between erosion rate and particles velocity. The dependency of erosion rate on size of particles at high temperatures is indispensable.

Micro-nano multilayer structure design and solid particle erosion resistance performance of CrAlNx/CrAlN coating

Vacuum ◽  
2020 ◽  
Vol 172 ◽  
pp. 109064 ◽  
Author(s):  
Di Wang ◽  
Songsheng Lin ◽  
Lingyun Liu ◽  
Hongzhi Yang ◽  
Jing Shi ◽  
...  
Keyword(s):  
Solid Particle ◽  
Multilayer Structure ◽  
Erosion Resistance ◽  
Structure Design ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Resistance Performance

Solid Particle Erosion of Thermal Sprayed Coatings

2015 ◽  
pp. 193-226 ◽  
Author(s):  
S. G. Sapate ◽  
Manish Roy
Keyword(s):  
Solid Particle ◽  
Erosion Rate ◽  
Erosive Wear ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Recent Developments ◽  
Future Direction ◽  
Sprayed Coating ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

Solid particle erosion is an important material degradation mechanism. Although various methods of coating are tried and used for protection against erosion, thermal sprayed coating for such purpose is the most widely used method. In this chapter, evolution of thermal sprayed coating, erosion testing methods, and erosive wear of thermal sprayed coatings are discussed extensively with emphasis on recent developments. It is generally found that erosion of thermal sprayed coatings depends on erosion test conditions, microstructural features, and mechanical properties of the coating materials. Most thermal sprayed coatings respond in brittle manner having maximum erosion rate at oblique impact and velocity exponent in excess of 3.0. Erosion rate is also dependent on thermal spraying techniques and post coating treatment. However, little work is done on dependence of erosion rate on coating techniques and coating conditions. Future direction of work is also reported.

Thermoplastic polyurethane-carbon black nanocomposite coating: Fabrication and solid particle erosion resistance

Polymer ◽  
2018 ◽  
Vol 158 ◽  
pp. 381-390 ◽  
Author(s):  
Mengyao Dong ◽  
Qiang Li ◽  
Hu Liu ◽  
Chuntai Liu ◽  
Evan K. Wujcik ◽  
...  
Keyword(s):  
Carbon Black ◽  
Solid Particle ◽  
Erosion Resistance ◽  
Thermoplastic Polyurethane ◽  
Nanocomposite Coating ◽  
Solid Particle Erosion ◽  
Particle Erosion
Sign in / Sign up

Export Citation Format

Share Document