scholarly journals Formation of the self-assembled structures by the ultrasonic cavitation erosion-corrosion effect on carbon steel

AIP Advances ◽  
2015 ◽  
Vol 5 (11) ◽  
pp. 117132 ◽  
Author(s):  
Dayun Yan ◽  
Jiadao Wang ◽  
Fengbin Liu ◽  
Kenan Rajjoub
Keyword(s):  
Carbon Steel ◽  
Cavitation Erosion ◽  
Ultrasonic Cavitation ◽  
The Self ◽  
Corrosion Effect ◽  
Erosion Corrosion ◽  
Self Assembled ◽  
Ultrasonic Cavitation Erosion

The Effect of Acoustic Streaming on the Ring Area Around the Cavitation Erosion Pit

2014 ◽  
Vol 136 (2) ◽  
Author(s):  
Dayun Yan ◽  
Jiadao Wang
Keyword(s):  
Carbon Steel ◽  
Cavitation Erosion ◽  
Acoustic Streaming ◽  
Bulk Water ◽  
Ultrasonic Cavitation ◽  
Mean Velocity ◽  
Erosion Corrosion ◽  
Streaming Flows ◽  
Ultrasonic Cavitation Erosion ◽  
Sandwich Sheets

The formation of a ring area around the cavitation erosion pit on carbon steel is due to the cavitation erosion–corrosion. For the ultrasonic irradiation in water, both the ultrasonic cavitation and the acoustic streaming are generated. Due to the oscillation of the horn, the acoustic streaming flows from the tip of the horn to the bulk water. So far, the acoustic streaming has not been considered in previous studies on the ultrasonic cavitation erosion–corrosion. This study first reveals that the acoustic streaming noticeably affects the evolution of the nascent ring area. The mean velocity of acoustic streaming is inversely proportional to the gap (H) between the tip of the horn and the surface of the specimen. When H is 65 mm and 40 mm, the corresponding ring area is mainly composed of vertical sandwich sheets. In contrast, when H is 17 mm, the corresponding ring area is mainly composed of horizontal thin sheets. This study provides a complete picture to understand the ultrasonic cavitation erosion–corrosion on carbon steel.

scholarly journals Ultrasonic cavitation erosion-corrosion behavior of friction stir processed stainless steel

2018 ◽  
Vol 44 ◽  
pp. 331-339 ◽  
Author(s):  
Karthikeyan Selvam ◽  
Priya Mandal ◽  
Harpreet Singh Grewal ◽  
Harpreet Singh Arora
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
Cavitation Erosion ◽  
Ultrasonic Cavitation ◽  
Friction Stir ◽  
Erosion Corrosion ◽  
Ultrasonic Cavitation Erosion

scholarly journals Investigation on Ultrasonic Cavitation Erosion Behaviors of Al and Al-5Ti Alloys in the Distilled Water

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1631
Author(s):  
Jingtao Zhao ◽  
Zongming Jiang ◽  
Jingwen Zhu ◽  
Junjia Zhang ◽  
Yinglong Li
Keyword(s):  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Surface Damage ◽  
Damage Mechanism ◽  
Ultrasonic Cavitation ◽  
Dislocation Slip ◽  
Distilled Water ◽  
New Device ◽  
Cavitation Erosion Resistance ◽  
Ultrasonic Cavitation Erosion

Al and Al-5Ti alloys were manufactured by an ultrasonic casting method with a new device, and their ultrasonic cavitation erosion behaviors of Al and Al-5Ti alloys in the distilled water were clarified. The damage mechanism was analyzed by macro photograph, scanning electronic micrograph and three-dimensional morphology, and the results demonstrate that Al-5Ti alloys have better cavitation erosion resistance than Al in terms of the mass loss and the surface damage. The deformation mechanism of Al and Al-5Ti alloys under cavitation erosion is mainly dislocation slip, and the Al3Ti phase enhances the cavitation erosion resistance of Al-5Ti alloys. In addition, the maximum depth of cavitation pits in the Al-5Ti sample is less than that in the Al sample for 31.3%.

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