کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795986 | 1514939 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pressure filtration tests of liquid Al-Si cast alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pressure filtration tests of liquid Al-Si cast alloys Pressure filtration tests of liquid Al-Si cast alloys](/preview/png/9795986.png)
چکیده انگلیسی
The flow behaviour during the Prifil Footprinter® tests of liquid Al-Si cast alloys has been investigated for the first time using the first and second derivative methods. The first derivative approach is recommended as the preferred method to determine the transitional points. At the initial transient stage flow rate decreases with filtration time. Higher quality liquid metal usually exhibits a shorter, or even no observable transient period. However, there remains some uncertainty of this conclusion, probably due to the variable waiting periods for the attainment of a designated temperature requirement prior to starting the filtration tests. During the steady state flow rate decreases linearly with filtration time and the second derivative values are around zero. At the initial and terminal transient states a periodic flow mode was also observed. The primary intermetallics possibly precipitated and sedimented prior to or during the tests may significantly influence the filtration behaviour.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 403, Issues 1â2, 25 August 2005, Pages 101-111
Journal: Materials Science and Engineering: A - Volume 403, Issues 1â2, 25 August 2005, Pages 101-111
نویسندگان
X. Cao,