کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1579304 | 1514827 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fatigue properties of the hot extruded magnesium alloy AZ31
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fatigue properties of the hot extruded magnesium alloy AZ31 Fatigue properties of the hot extruded magnesium alloy AZ31](/preview/png/1579304.png)
چکیده انگلیسی
The fatigue properties of differently extruded magnesium alloy AZ31 and hence different microstructures were investigated during total strain and stress-controlled fatigue tests with different applied strain and stress amplitudes, respectively. Extruded magnesium profiles exhibit a significant asymmetry in the quasi-static mechanical properties under tension and compression, due to the low activation energy for the {101¯2}ã101¯1ã extension twinning. The asymmetry of the tension-compression yield strength leads to a sigmoidal shape of the hysteresis loops under cyclic loading conditions which is reduced if the tension-compression asymmetry is reduced. Moreover the evolution of stress and strain amplitudes, the plastic strain amplitudes and the mean stress and strain were analyzed. The Manson-Coffin and the Basquin approaches were used to describe the lifetime of the differently extruded products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issues 21â22, 20 August 2010, Pages 5514-5521
Journal: Materials Science and Engineering: A - Volume 527, Issues 21â22, 20 August 2010, Pages 5514-5521
نویسندگان
Michael Huppmann, Martin Lentz, Katrin Brömmelhoff, Walter Reimers,