TY - GEN
T1 - Improved ultrasonic degassing of AlSi10Mg alloy and its performance evaluation with the reduced pressure test (RPT) method
AU - Galarraga, Haize
AU - De Cortazar, Maider Garcia
AU - Arregi, Eber
AU - Iparraguirre, Jon Ander
AU - Oncala, Jose Luis
N1 - Publisher Copyright:
© 73rd World Foundry Congress "Creative Foundry", WFC 2018 - Proceedings.All Rights Reserved.
PY - 2018
Y1 - 2018
N2 - Porosity is detrimental to the mechanical properties of aluminium alloy castings, thus, in most of the cases, especially in structural parts, reduction of porosity is desired and pursued. Porosity can be caused by gas formation, solidification shrinkage, or non-metallic compound formation. In this work, the reduction of gas porosity formed by the hydrogen dissolved in the molten AlSi10Mg aluminium alloy has been studied employing an ultrasonic degasser in combination with purging gas blowing. Qualitative study of the hydrogen content of different samples has been performed employing the widespread reduced pressure test (RPT). Different factors affecting to RPT test have also been studied.
AB - Porosity is detrimental to the mechanical properties of aluminium alloy castings, thus, in most of the cases, especially in structural parts, reduction of porosity is desired and pursued. Porosity can be caused by gas formation, solidification shrinkage, or non-metallic compound formation. In this work, the reduction of gas porosity formed by the hydrogen dissolved in the molten AlSi10Mg aluminium alloy has been studied employing an ultrasonic degasser in combination with purging gas blowing. Qualitative study of the hydrogen content of different samples has been performed employing the widespread reduced pressure test (RPT). Different factors affecting to RPT test have also been studied.
KW - Aluminium
KW - Degassing
KW - Oxides
KW - Reduced pressure test
KW - Ultrasonic
UR - http://www.scopus.com/inward/record.url?scp=85062269715&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85062269715
T3 - 73rd World Foundry Congress "Creative Foundry", WFC 2018 - Proceedings
SP - 337
EP - 338
BT - 73rd World Foundry Congress "Creative Foundry", WFC 2018 - Proceedings
PB - Stowarzyszenie Techniczne Odlewnikow Polskich/Polish Foundrymen's Association
T2 - 73rd World Foundry Congress: Creative Foundry, WFC 2018
Y2 - 23 September 2018 through 27 September 2018
ER -