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|Title:||Ultrasonic degassing of aluminium alloys: basic studies and practical implementation|
da Silva, M
|Publisher:||Maney & Son Ltd|
|Citation:||Materials Science and Technology, 31(1): 79 - 84, (January 2015)|
|Abstract:||Ultrasonic processing is known to be an efficient means of aluminium melt degassing and structure modification with additional benefits of being economical and environment friendly. The present paper reports on the kinetics of ultrasonic degassing and regassing of foundry luminium alloys and on pilot scale degassing trials. Efficiency of ltrasonic degassing is compared with conventional Ar rotary degassing. Direct measurements of hydrogen concentration in the melt by Foseco Alspek-H probe are used along with reduced pressure test. The effects of ultrasonic processing on porosity are studied using three-dimensional X-ray tomography.|
|Appears in Collections:||Brunel Centre for Advanced Solidification Technology (BCAST)|
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