کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803810 1516473 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and mechanical behavior of AZ91 Mg alloy processed by equal channel angular pressing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Microstructure and mechanical behavior of AZ91 Mg alloy processed by equal channel angular pressing
چکیده انگلیسی
A fine-grained AZ91 alloy was prepared by equal channel angular pressing (ECAP). The evolution of the microstructure and the deformation behavior were investigated as a function of the number of ECAP passes. At room temperature the tensile strength of the ECA pressed specimens is higher than that of the initial state due to the grain refinement and the increase of the dislocation density during ECAP. Above 200 °C the ductility increases due to the increase of the relative fraction of c + a dislocations and also owing to the breakage of the rod-like Al12Mg17 precipitates during ECAP processing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 394, Issues 1–2, 17 May 2005, Pages 194-199
نویسندگان
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