کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7981893 | 1514753 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of nanostructured pure aluminum tubes produced by tubular channel angular pressing (TCAP)
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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: Characterization of nanostructured pure aluminum tubes produced by tubular channel angular pressing (TCAP) Characterization of nanostructured pure aluminum tubes produced by tubular channel angular pressing (TCAP)](/preview/png/7981893.png)
چکیده انگلیسی
Ultrafine grained (UFG) aluminum tubes were fabricated by the tubular channel angular pressing (TCAP) process. The microstructural evolution was characterized by transmission electron microscopy (TEM) and mechanical properties were evaluated by compression test and hardness measurements. TEM analysis of specimen subjected to one TCAP pass showed the formation of an array of elongated subgrains with high angle grain boundaries. Increase in the number of passes changes the elongated grains to equiaxed grains with ~310Â nm sizes. Microhardness value of the processed tubes was enhanced to 49.4Â Hv after one pass from an initial value of 32.9Â Hv. Yield and ultimate strengths were increased 2.5 and 2.28 times as compared to annealed specimen. Compression tests also showed that UFG aluminum tubes exhibit lower work hardening and almost perfect plastic behavior without any failure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 590, 10 January 2014, Pages 289-294
Journal: Materials Science and Engineering: A - Volume 590, 10 January 2014, Pages 289-294
نویسندگان
M. Mesbah, G. Faraji, A.R. Bushroa,