Applied Cavitation Erosion Testing

2009 ◽  
pp. 56-56-19 ◽  
Author(s):  
JW Tichler ◽  
AWJ de Gee ◽  
HC van Elst
Keyword(s):  
Cavitation Erosion ◽  
Erosion Testing

scholarly journals Cavitation erosion testing of different cavitation-resistent materials and coatings using the cavitating jet method

2019 ◽  
Vol 240 ◽  
pp. 062057
Author(s):  
Pavel Rudolf ◽  
Martin Juliš ◽  
Lenka Klakurková ◽  
Pavel Gejdoš ◽  
Martin Hudec
Keyword(s):  
Cavitation Erosion ◽  
Erosion Testing ◽  
Cavitating Jet

Prediction Calculation of the Cavitation Erosion Generated in Connection With a High-Pressure Jet

2003 ◽  
Author(s):  
Atsushi Yuge ◽  
Ichiro Takeno ◽  
Tatsuo Takaishi ◽  
Yoichiro Matsumoto
Keyword(s):  
High Pressure ◽  
High Performance ◽  
Cavitation Erosion ◽  
Fuel Injection ◽  
Shock Pressure ◽  
Erosion Testing ◽  
Injection Pump ◽  
Fuel Injection Pump ◽  
And Performance ◽  
Diesel Fuel Injection

High-pressure jets are being pursued in diesel engines in order to facilitate development of next-generation fuel injection systems aiming at high performance, high fuel economy, and low emissions of smoke. Cavitation erosion accompanying the use of high-pressure jets for diesel fuel injection pumps is a factor responsible for reduced equipment durability and performance. In response, the project reported here involved the production of test equipment for the purpose of replicating the behavior of a fuel injection pump as it would occur in an actual diesel engine, with erosion testing, and analysis of the shock pressure by the cavitation, and its generating part. As a result, the following behaviors were noted. (1) In the 3-dimensional analysis of an unsteady cavitation jet stream, the shock pressure by the cavitation and its generating part can be predicted. (2) If the exit clearance of a hole is adjusted, the generating position of a erosion is controllable.

scholarly journals Determination of degradation level during cavitation erosion of zircon based ceramic

2017 ◽  
Vol 49 (2) ◽  
pp. 175-185 ◽  
Author(s):  
Marko Pavlovic ◽  
Marina Dojcinovic ◽  
Sanja Martinovic ◽  
Milica Vlahovic ◽  
Zoran Stevic ◽  
...  
Keyword(s):  
Mass Loss ◽  
Thermal Imaging ◽  
Cavitation Erosion ◽  
Mechanical Shock ◽  
Cavitation Resistance ◽  
Material Degradation ◽  
Surface Degradation ◽  
Erosion Testing ◽  
Erosion Environment

Mechanical shock of zircon based ceramic induced by cavitation erosion testing was investigated in this study. Several parameters were followed in order to determine level of material degradation during the cavitation erosion testing. Mass loss was taken as a conventional criterion for material degradation, while the level of surface degradation was evaluated by image and thermal imaging analyses. Results show high cavitation resistance of zircon ceramics and their suitability when vigorous cavitation erosion environment is expected.

scholarly journals Ultrasonic Cavitation Erosion Behavior of AlCoCrxCuFe High Entropy Alloy Coatings Synthesized by Laser Cladding

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4067
Author(s):  
Danqing Yin ◽  
Guangbing Liang ◽  
Shuai Fan ◽  
Shanxin Li
Keyword(s):  
Laser Cladding ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Dendritic Structure ◽  
Atomic Radius ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Erosion Testing ◽  
Cr Concentration ◽  
Cavitation Erosion Resistance

Cavitation corrosion resistant coatings are an excellent solution to the cavitation corrosion problem. High entropy alloys provide a new possibility for cavitation resistant coatings due to their excellent comprehensive performance. Laser cladding was employed to synthesize AlCoCrxCuFe (x represents the Cr concentration, x = 0.5, 1.0, 1.5, 2.0) high entropy alloy coatings (HECs) on AISI 304 steel. The phase transformation, microstructure, micro-mechanical properties, and cavitation erosion performance of HECs were studied. Results showed that AlCoCrxCuFe HECs were composed of BCC and FCC duplex phase. The microstructure of HECs showed a typical dendritic structure. The composition segregation of interdendrite structures was observed. Cavitation erosion resistance represented by 20 h volume loss was decreased with the increase in Cr content. AlCoCrxCuFe HECs with the lowest chromium content (AlCoCr0.5CuFe) showed the best cavitation erosion resistance among all samples. The cavitation resistance of AlCoCrxCuFe HECs has good correlation with the mechanical parameter Hn3/Er2 (Hn is nanohardness, Er is elastic modulus) and phase formation parameter δ (δ is atomic radius difference). The surface after 20 h of cavitation erosion testing exposed the dendritic structure of BCC phase, which was caused by the destruction of the interdendrite structure by cavitation impact.

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