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.
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Tsinghua University,
Beijing 100084,
Tsinghua University,
e-mail: jdwang@mail.tsinghua.edu.cn
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April 2014
Research-Article
The Effect of Acoustic Streaming on the Ring Area Around the Cavitation Erosion Pit
Dayun Yan,
Tsinghua University,
Beijing 100084,
Dayun Yan
State Key Laboratory of Tribology
,Tsinghua University,
Beijing 100084,
China
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Jiadao Wang
Tsinghua University,
e-mail: jdwang@mail.tsinghua.edu.cn
Jiadao Wang
1
State Key Laboratory of Tribology
,Tsinghua University,
Beijing 100084
, China
e-mail: jdwang@mail.tsinghua.edu.cn
1Corresponding author.
Search for other works by this author on:
Dayun Yan
State Key Laboratory of Tribology
,Tsinghua University,
Beijing 100084,
China
Jiadao Wang
State Key Laboratory of Tribology
,Tsinghua University,
Beijing 100084
, China
e-mail: jdwang@mail.tsinghua.edu.cn
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received October 14, 2013; final manuscript received December 13, 2013; published online January 20, 2014. Assoc. Editor: George K. Nikas.
J. Tribol. Apr 2014, 136(2): 021102 (5 pages)
Published Online: January 20, 2014
Article history
Received:
October 14, 2013
Revision Received:
December 13, 2013
Citation
Yan, D., and Wang, J. (January 20, 2014). "The Effect of Acoustic Streaming on the Ring Area Around the Cavitation Erosion Pit." ASME. J. Tribol. April 2014; 136(2): 021102. https://doi.org/10.1115/1.4026348
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