کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7983361 | 1514779 | 2013 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evolution of microstructure and mechanical properties in Cu-14%Fe alloy during severe cold rolling
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
![عکس صفحه اول مقاله: Evolution of microstructure and mechanical properties in Cu-14%Fe alloy during severe cold rolling Evolution of microstructure and mechanical properties in Cu-14%Fe alloy during severe cold rolling](/preview/png/7983361.png)
چکیده انگلیسی
Cu-14%Fe alloy was produced by vacuum arc remelting and casting in water-cooled mold with subsequent hot extrusion. It had fine grained microstructure with supersaturated solid solutions based on Cu and Fe phases. The alloy was subjected to cold sheet rolling with true strains up to 6.6. Microstructure was studied by SEM and TEM, specific attention was paid to chemical composition of individual phases-copper matrix and iron particles. After rolling very fine lamellar structure formed in copper matrix. Rolling also has resulted in decrease of iron content in matrix from 3.8% in initial condition to 1% after rolling with strain of 5.1 due to decomposition of supersaturated solid solution. At higher strain some deformation-induced mechanical alloying was observed, leading to local increase of iron content. Iron particles also were heavily refined; their average thickness after rolling with strain of 6.6 is about 30Â nm (according to TEM data). Several possible mechanisms of their refinement in addition to homogeneous plastic deformation are proposed. Strength of the alloy measured by tensile testing increased significantly after rolling. For example, ultimate tensile strength increased from 325Â MPa in initial condition to almost 1000Â MPa after rolling with strain of 6.6. Good correlation between mechanical strength and spacing between iron particles in accordance with Hall-Petch relationship was found.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 564, 1 March 2013, Pages 264-272
Journal: Materials Science and Engineering: A - Volume 564, 1 March 2013, Pages 264-272
نویسندگان
N.D. Stepanov, A.V. Kuznetsov, G.A. Salishchev, N.E. Khlebova, V.I. Pantsyrny,