کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5018044 | 1466722 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of pressure and pouring temperature on the porosity, microstructure, hardness and yield stress of AA2024 aluminum alloy during the squeeze casting process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
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چکیده انگلیسی
The effect of pressure and pouring temperature on the microstructure, porosity, hardness and yield stress of AA2024 aluminum alloy during squeeze casting process was investigated. At a constant pouring temperature (700 °C), by increasing the applied pressure up to 140 MPa, the hardness increased from 125 HBN to 152 HBN while the yield stress increased from 235 MPa to 340. Moreover, by increasing the applied pressure (to 140 MPa) and reducing the pouring temperature (at 700 °C), the DAS size and the porosity diameter decreased to 12.5 and 0.25 μm, respectively. Thus, the density increased to 2.75 (g/cm3). At a pressure of 140 MPa and 700 °C, an ultra-fine grain structure with an average grain size of 80 nm was observed. At squeezing pressures greater than 70 MPa, the effect of pouring temperature was less important.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 245, July 2017, Pages 1-6
Journal: Journal of Materials Processing Technology - Volume 245, July 2017, Pages 1-6
نویسندگان
A. Jahangiri, S.P.H. Marashi, M. Mohammadaliha, V. Ashofte,