کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1638374 | 1516994 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Superplastic extensibility deformation of Al-3%Mn alloy with submicrometer grain size
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Submicrometer-grained (SMG) Al-3%Mn (mass fraction) alloy specimens with initial grain size of â¼0.3 μm were produced by ball milling for 3 h. The Al-3%Mn specimens which were cold rolled with a strain rate of 1Ã10â3-1Ã10â2 sâ1 at room temperature show high extensibility to failure more than 2500%. Microstructures of pure Al and Al-3%Mn alloy at as-milled and cold-rolled state were examined using X-ray diffraction and transmission electron microscopy (TEM). Based on the microstructure analysis, it is established that the mechanism of the continued plastic deformation in SMG Al-3%Mn alloy consists of dislocation slip, grain boundary sliding companied by dynamic recovery and recrystallization, and dynamic recrystallization is a main control factor of the large plastic deformation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Issue 5, May 2012, Pages 1035-1040
Journal: Transactions of Nonferrous Metals Society of China - Volume 22, Issue 5, May 2012, Pages 1035-1040
نویسندگان
Xuan XIAO, Ci GAO, Jie-shan HOU, Jian-ting GUO,