کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1583361 1514892 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hardening and softening in selected magnesium alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Hardening and softening in selected magnesium alloys
چکیده انگلیسی

The paper deals with the influence of temperature and solute atoms on the stress relaxation behaviour. Examples will be given on the deformation behaviour of selected magnesium alloys ZE41 and QE22. The testing temperature and strain rate strongly influence the behaviour. The temperature and strain rate dependences of the yield stress are in some cases non-monotonic. Post-relaxation effect—an increase of the flow stress after stress relaxation is analysed in relation to the dynamic strain-ageing effect. The activation volume is calculated using the strain rate change experiments, and the non-conservative motion of jogs is estimated as a possible thermally activated process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 462, Issues 1–2, 25 July 2007, Pages 23–28
نویسندگان
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