کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10418845 | 903325 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grain refinement, thermal stability and tensile properties of 2024 aluminum alloy after equal-channel angular pressing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Grain refinement, thermal stability and tensile properties of 2024 aluminum alloy after equal-channel angular pressing Grain refinement, thermal stability and tensile properties of 2024 aluminum alloy after equal-channel angular pressing](/preview/png/10418845.png)
چکیده انگلیسی
The microstructure evolution and tensile properties of 2024 aluminum alloy after severe plastic deformation by equal-channel angular pressing (ECA pressing) have been studied with different initial aging treatment conditions. The experimental results reveal that ECA pressing produces ultrafine grains to a submicrometer level of around 0.25 μm in both peak- and over-aged specimens. Moreover, these ultrafine grains have limited grain growth when ECA pressings are subsequently annealed at temperatures upto 300 °C. The values of 0.2% proof stress and ultimate tensile stress (UTS) are improved without significant loss of ductility for both peak- and over-aged specimens after various passages of ECA pressing at two temperatures of 150 and 190 °C. An optimum tensile property was achieved in a peak-aged specimen after eight passages of ECA pressing at a temperature of 150 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 159, Issue 3, 10 February 2005, Pages 314-320
Journal: Journal of Materials Processing Technology - Volume 159, Issue 3, 10 February 2005, Pages 314-320
نویسندگان
J. Mao, S.B. Kang, J.O. Park,