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The influence of FAC particle size on the damping capacity and dynamic Young's modulus of AZ91D/FAC composites at high temperature

  • Si-Rong Yu , Fan-Guo Li , Hong-Chao Chu and En-Yang Liu
Published/Copyright: May 30, 2018
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Abstract

Composites of AZ91D magnesium alloy reinforced with fly-ash cenosphere (FAC) were prepared by a stirring method. The effects of the FAC particle size (83, 116, and 146 μm) and the test frequency (0.5, 1, and 5 Hz) on high-temperature damping capacity and dynamic Young's modulus of the composites were investigated. The results show that the FAC particles distributed homogeneously in the Mg-alloy matrix and some new phases formed. The composites with 146-μm FAC exhibited the highest damping capacity at all test frequencies at high temperatures, whereas the highest dynamic Young's modulus was exhibited by the composites with 83-μm FAC. Therefore, composites with good damping capacity and mechanical properties could be obtained through selection of reinforcement particles of an appropriate size.


*Correspondence address, Si-Rong Yu, En-Yang Liu, College of Mechanical and Electronic Engineering, China University of Petroleum, Changjiang West Road, Huangdao distric, Qingdao 266580, P.R. China, Tel.: +86532869835008708, Fax: +8653286983300, E-mail: (S. Yu) (F. G. Li)

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Received: 2017-11-15
Accepted: 2018-01-25
Published Online: 2018-05-30
Published in Print: 2018-06-12

© 2018, Carl Hanser Verlag, München

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