کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795668 | 1514932 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Substructural and phase transformations during plastic deformations of materials obtained by intensive deformation
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
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چکیده انگلیسی
The paper presents the results of electron microscopy investigations of the defect structure evolution and the phase transformation of ultra fine-grained (UFG) Cu and CuAlO alloy. The UFG Cu was prepared using the equal-channel angular (ECA) pressing method. The CuAlO alloy was synthesized by mechanical milling and subsequent high temperature pressing. The initial grain size of the materials was 200Â nm. The grain and dislocation structures were investigated qualitatively and quantitavely. In the Cu alloy, deformation twinning was revealed to occur in coarse grains together with slip deformation. The evolution of grain and dislocation micro structure in the presence or absence of solid solution and of dispersion hardening is analyzed, and differences are assessed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 341-344
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 341-344
نویسندگان
N.A. Koneva, E.V. Kozlov, Yu.F. Ivanov, N.A. Popova, A.N Zhdanov,