کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1583415 1514892 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acoustic emission during stress relaxation of pure magnesium and AZ magnesium alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Acoustic emission during stress relaxation of pure magnesium and AZ magnesium alloys
چکیده انگلیسی

Acoustic emission was monitored and analysed during tensile tests of pure Mg and Mg alloys of the AZ series in order to study the influence of alloy composition on plastic deformation. The Kaiser effect was used to determine the stability of the microstructure. During the tests at room temperature, repeated stress relaxations were performed. The solute–dislocation interaction in the alloys leads to ageing phenomenons, which manifest themselves in a post-relaxation effect and subsequent serrated flow (Portevin–Le Chatelier effect). The post-relaxation effect was sensitive to alloy composition and the strain at which the stress relaxation was performed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 462, Issues 1–2, 25 July 2007, Pages 307–310
نویسندگان
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