کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795939 | 1514938 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Low temperature superplastic gas pressure forming of electrodeposited Ni/SiCp nanocomposites
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The superplastic deformation behavior of a Ni/SiCp nanocomposite was investigated under equibiaxial tension at a strain rate of 8.3Â ÃÂ 10â4Â sâ1 and various forming temperatures and die apertures. The average as-deposited nickel grain size was 40Â nm, and the average SiC particle size was 50Â nm. The experimental relative bulging height (RBH) values were measured, and compared with that predicted by a finite element method (FEM) model. It was found that the composite had exhibited good superplasticity, illustrating high RBH values, and the die diameter affected significantly its deformation behavior. The cavitation behavior of the composite was also examined, and found to be dependent on stress state and the total effective strain. As compared to the analytical results, the FEM predictions were shown to be in better agreement with the experimental thickness distribution, although a large discrepancy was observed for dies with small diameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 404, Issues 1â2, 15 September 2005, Pages 108-116
Journal: Materials Science and Engineering: A - Volume 404, Issues 1â2, 15 September 2005, Pages 108-116
نویسندگان
K.C. Chan, G.F. Wang, C.L. Wang, K.F. Zhang,