Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/50116

TitleEffect of ultrasonic degassing on performance of Al-based components
Author(s)Puga, Hélder
Barbosa, J.
Tuan, N. Q.
Silva, Filipe Samuel
KeywordsCasting
Ultrasound
Degassing
Porosity
Fatigue
Issue dateNov-2014
PublisherElsevier
JournalTransactions of Nonferrous Metals Society of China
Abstract(s)The effect of high intensity ultrasound based on the novel multi-frequency multimode modulated technology on the final density, porosity, mechanical and fatigue properties of an AlSi9Cu3(Fe) alloy after different processing time was studied. Reduced pressure test was used to evaluate the density of alloys. The tensile and fatigue tests were used to evaluate the static and dynamic properties for the different time of ultrasonic degassing, respectively. It is found that ultrasonic degassing is effective in reduction porosity as well as to improve the final density of castings. Furthermore, the experimental results suggest that the porosity level does not have a substantial influence on the static properties contrary to what is observed on fatigue properties.
Typearticle
URIhttp://hdl.handle.net/1822/50116
DOI10.1016/S1003-6326(14)63489
ISSN1003-6326
Peer-Reviewedyes
AccessrestrictedAccess
Appears in Collections:DEM - Artigos em revistas de circulação internacional com arbitragem científica

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