کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1526100 1511843 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical properties of the hot-rolled Mg–12Gd–3Y magnesium alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Mechanical properties of the hot-rolled Mg–12Gd–3Y magnesium alloy
چکیده انگلیسی

Tensile and high cycle fatigue (HCF) properties of the hot-rolled Mg–12Gd–3Y (wt.%) magnesium alloy have been investigated. The magnesium alloy exhibits a fatigue strength of about 150 MPa, which is much higher than that of the commercial Mg–8Al–Zn alloy AZ80. Aging heat-treatment (T5) improved the fatigue life of the Mg–12Gd–3Y alloy. Fatigue cracks nucleated at the intense slip bands in the as-rolled alloy. After T5 treatment, however, the fatigue crack nucleation site shifted to the phase boundaries between MgGdY particles and Mg matrix. T5 heat-treatment retarded the crack initiation and thus improved the fatigue life of the Mg–12Gd–3Y alloy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 118, Issues 2–3, 15 December 2009, Pages 453–458
نویسندگان
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