کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
795126 1466758 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flow stress equation of AZ31 magnesium alloy sheet during warm tensile deformation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Flow stress equation of AZ31 magnesium alloy sheet during warm tensile deformation
چکیده انگلیسی

The uniaxial warm tensile tests were carried out under a strain rate range of 0.1–0.0001 s−1 at a temperature range of 423–573 K in order to evaluate the flow stress of AZ31 magnesium alloy sheet. The flow stress curves analyzing by Fields–Backofen constitutive equation can only give a good fit to the measured stress–strain relationship at the work-hardening stage. A new mathematical model containing a softening item s is used to calculate the flow stress curves. The results indicate that this modeling can approach better at the softening stage of the flow stress than that of the Fields–Backofen equation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 208, Issues 1–3, 21 November 2008, Pages 29–34
نویسندگان
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