کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795645 | 1514932 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An analysis of the shear zone for metals deformed by equal-channel angular processing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Four fundamental models, based on slip-line theory, are compared to experimental results obtained from deforming scribed billets in a single pass of equal-channel angular pressing (ECAP). Two ECAP die configurations, having sharp and round corners, are used to determine the experimental flow-line fields for Pb, pure Cu and pure Al billets. Two different types of deformation behavior are observed when using the die with a sharp-corner: (a) for the Cu and Al billets a gap develops at the outer corner of the die so that the material flows without filling the outer corner and (b) for Pb billets a “dead-metal” zone is formed which fills with material in the outer corner of the die. Strain mapping is used to delineate different spatial strain distributions for sharp-corner and round-corner dies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 239-242
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 239-242
نویسندگان
G.M. Stoica, D.E. Fielden, R. McDaniels, Y. Liu, B. Huang, P.K. Liaw, C. Xu, T.G. Langdon,