کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7973830 | 1514631 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving mechanical properties and yield asymmetry in high-speed extrudable Mg-1.1Al-0.24Ca (wt%) alloy by high Mn addition
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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: Improving mechanical properties and yield asymmetry in high-speed extrudable Mg-1.1Al-0.24Ca (wt%) alloy by high Mn addition Improving mechanical properties and yield asymmetry in high-speed extrudable Mg-1.1Al-0.24Ca (wt%) alloy by high Mn addition](/preview/png/7973830.png)
چکیده انگلیسی
The chemical composition of a Mg-1.1Al-0.33Ca-0.44Mn (wt%) alloy, AXM10304, has been optimized for high speed extrusion. The extrudability is substantially improved from 24Â m/min to 60Â m/min by slightly reducing the Ca content from 0.33Â wt% to 0.24Â wt%. Then, the effect of Mn content on the mechanical properties and microstructures of extruded Mg-1.1Al-0.24Ca based alloys were investigated. In a solution-treated condition, tensile yield stress is enhanced to 200Â MPa with increasing Mn content up to 0.68Â wt% and the compressive yield stress is also improved to 164Â MPa with increasing Mn content up to 1.0Â wt% due to grain size refinement. After an artificial aging, Guinier Preston zones were dispersed within the Mg matrix, and the tensile and compressive yield stresses are increased by 70Â MPa and 30Â MPa regardless of the Mn content. Consequently, the peak-aged 1.1Al-0.24Ca-1.0Mn alloy, AXM1021, exhibits high tensile and compressive yield stresses of 263Â MPa and 197Â MPa with a good yield asymmetry of 0.74 (a ratio of compressive yield stress to tensile one).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 712, 17 January 2018, Pages 12-19
Journal: Materials Science and Engineering: A - Volume 712, 17 January 2018, Pages 12-19
نویسندگان
T. Nakata, C. Xu, R. Ajima, Y. Matsumoto, K. Shimizu, T.T. Sasaki, K. Hono, S. Kamado,