- Cavitation erosion occurs on material surfaces when the sample is exposed to ultrasonic cavitation for a specific energy exposure. This method is a reliable and efficient method to measure erosion resistance of materials / coatings up on exposure to intense cavitation and other erosion factors which gives an easy and accurate quantitative measurement for quality control and is useful during research of materials/ formulation of coating .?
- Ultrasonic cavitation erosion testing exposes sample surfaces to predefined controlled, intense, repeating stress cycles which will result in a? significant erosion of the material surface in a short time. You can quickly measure the erosion resistance for regular quality control in production or testing of sourced material or during research and development.
- Standard applications of cavitation erosion testing include metallurgical testing, coating formulation testing, coating application testing.
- Ultrasonic devices, such as the Sonics Ultrasonic Processor - VCX750 create vibrations into liquids , fast reciprocal movement of the vibration in the liquid produces and collapses cavitation bubbles resulting in a high localized mechanical stress occurring in the liquid as well as exposed sample surfaces. Liquids jets and create a local pressure of up to 1000atm lead to wear on the material surface which will remove? layers or coatings , resulting in pitting of solid materials such as steel, titanium, aluminum, plastic or glass. Therefore, cavitation erosion testing is a destructive testing method.
- The ASTM G32-16 standard refers to a standardized method for cavitation erosion. It defines a simple, controllable and reproducible test to quantify and compare the cavitation erosion resistance of different materials. ATSM G32-16 specifications are useful for comparison of your results with that of other publications.?
- Sonics Ultrasonic Processor - VCX750 is widely used for the direct and indirect erosion testing of samples. Sonics manufactures ultrasonic processors with a? fixed frequency of? 20kHz with variable amplitude ranging from 0-100%? which can be? used for the testing of the erosion resistance of materials according to the ASTM G32-92.?
The typical setup for erosion testing consists Ultrasonic Processor with ultrasonic transducer (booster horn, Ultrasconic Probe(15.9mm probe), Jacketed Vessel with option of maintaining / controlling temperature during the process and a sample holder.
