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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Low temperature superplastic gas pressure forming of electrodeposited Ni/SiCp nanocomposites
چکیده انگلیسی
The superplastic deformation behavior of a Ni/SiCp nanocomposite was investigated under equibiaxial tension at a strain rate of 8.3 × 10−4 s−1 and various forming temperatures and die apertures. The average as-deposited nickel grain size was 40 nm, and the average SiC particle size was 50 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 1–2, 15 September 2005, Pages 108-116
نویسندگان
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