کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155801 | 1666362 | 2019 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strain hardening of as-extruded Mg-xZn (xâ=â1, 2, 3 and 4 wt%) alloys
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The influence of Zn on the strain hardening of as-extruded Mg-xZn (xâ=â1, 2, 3 and 4âwt%) magnesium alloys was investigated using uniaxial tensile tests at 10â3 s-1 at room temperature. The strain hardening rate, the strain hardening exponent and the hardening capacity were obtained from true plastic stress-strain curves. There were almost no second phases in the as-extruded Mg-Zn magnesium alloys. Average grain sizes of the four as-extruded alloys were about 17.8âμm. With increasing Zn content from 1 to 4âwt%, the strain hardening rate increased from 2850âMPa to 6810âMPa at (Ï-Ï0.2)â=â60âMPa, the strain hardening exponent n increased from 0.160 to 0.203, and the hardening capacity, Hc increased from 1.17 to 2.34. The difference in strain hardening response of these Mg-Zn alloys might be mainly caused by weaker basal texture and more solute atoms in the α-Mg matrix with higher Zn content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 35, Issue 1, January 2019, Pages 142-150
Journal: Journal of Materials Science & Technology - Volume 35, Issue 1, January 2019, Pages 142-150
نویسندگان
Chaoyue Zhao, Xianhua Chen, Fusheng Pan, Jingfeng Wang, Shangyu Gao, Teng Tu, Chunquan Liu, Jiahao Yao, Andrej Atrens,