Numerical and expreimental estimation of shrinkage cavities during al-alloys casting
Other Title(s)
التقدير العددي و التجريبي لفجوات التقلص خلال سباكة سبائك الألمنيوم
Joint Authors
Kushnaw, Farhad Muhammad Uthman
Husayn, Imad Ahmad
Jabr, Adnan Shamkhi
Source
Basrah Journal for Engineering Sciences
Issue
Vol. 8, Issue 1 (31 Dec. 2008), pp.77-89, 13 p.
Publisher
University of Basrah College of Engineering
Publication Date
2008-12-31
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Topics
Abstract AR
إن الهدف من هذا البحث هو تخمين عيوب الانكماش في مسبوكات الألمنيوم - سيلكون و ذلك بتحديد المعاملات و التقنيات المناسبة التي ممكن تطبيقها في نظام محاكاة السباكة.
و يهدف أيضا لتحديد دور محتوى السليكون في كمية و شكل و توزيع هذه العيوب.
نفذت الحلول العددية باستخدام طريقة الفروقات المتناهية ثلاثية الأبعاد, للمسبوكة و لا يمكن تخمينها.
تعاني السبائك قليلة السليكون من الفجوات فقط و التي يمكن التنبؤ بها برسم خطوط زمن التجميد و اخيرا, تم التوصل إلى أن قيمة التدرج الحراري الحرجة لظهور المسامات في السبائك اليوتكنيكية (Al-12%Si) تساوي °C/cm 1.3.
Abstract EN
The aim of this research is to predict the shrinkage defects in Al-Si castings by determination the suitable parameters and techniques which can be applied in casting simulation system.
Also, it aims to specify the role of silicon content in amount, morphology, and distribution of these defects* The Numerical solution has been carried out using an explicit 3-D finite difference method for the given system of the casting and a mold.
Additionally, an experimental casting of the studied samples was achieved.
It was found that the shrinkage porosities increased with increasing the silicon content up to 7 %, so at this peak, they spread in alt cast regions and cannot be predicted.
The low silicon alloys suffered from only the shrinkage cavities defects that can be predicted by mapping the solidus time contours.
Finally, it was concluded that the critical temperature gradient value of the porosities development in the eutectic (AM2 % Sij alloys was 1.3 °C / cm,
American Psychological Association (APA)
Jabr, Adnan Shamkhi& Kushnaw, Farhad Muhammad Uthman& Husayn, Imad Ahmad. 2008. Numerical and expreimental estimation of shrinkage cavities during al-alloys casting. Basrah Journal for Engineering Sciences،Vol. 8, no. 1, pp.77-89.
https://search.emarefa.net/detail/BIM-337454
Modern Language Association (MLA)
Jabr, Adnan Shamkhi…[et al.]. Numerical and expreimental estimation of shrinkage cavities during al-alloys casting. Basrah Journal for Engineering Sciences Vol. 8, no. 1 (2008), pp.77-89.
https://search.emarefa.net/detail/BIM-337454
American Medical Association (AMA)
Jabr, Adnan Shamkhi& Kushnaw, Farhad Muhammad Uthman& Husayn, Imad Ahmad. Numerical and expreimental estimation of shrinkage cavities during al-alloys casting. Basrah Journal for Engineering Sciences. 2008. Vol. 8, no. 1, pp.77-89.
https://search.emarefa.net/detail/BIM-337454
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 82-89
Record ID
BIM-337454