کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1528622 | 1511971 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical properties and corrosion resistance of hot extruded Mg-2.5Zn-1Ca alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mechanical properties and corrosion resistance of hot extruded Mg-2.5Zn-1Ca alloy Mechanical properties and corrosion resistance of hot extruded Mg-2.5Zn-1Ca alloy](/preview/png/1528622.png)
چکیده انگلیسی
It is demonstrated that the mechanical properties and corrosion resistance of Mg-2.5Â wt%Zn-1Â wt%Ca alloy are enhanced by the microstructural changes imparted by hot extrusion. A processing procedure is developed to form hollow tubes with an outer diameter of â¼2.0Â mm and wall thickness of â¼0.1Â mm, which is well suited for subsequent stent manufacturing. The influence of thermal and mechanical processing on corrosion and plasticity was found to be associated with grain-size reduction and the redistribution of intermetallic particles within the microstructure, providing significant improvement of performance over the cast alloy. Observation of the fracture surfaces reveals a mode transition from brittle (cast) to ductile (processed). Enhanced mechanical properties and decreased resorption rate represent significantly improved performance of this alloy after the novel processing sequence. Based on the improved properties, the produced Mg alloy is more suitable for practical in vivo applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 195, May 2015, Pages 50-58
Journal: Materials Science and Engineering: B - Volume 195, May 2015, Pages 50-58
نویسندگان
Dexue Liu, Chenggong Guo, Liqiang Chai, Vincent R. Sherman, Xiaoqiong Qin, Yutian Ding, Marc A. Meyers,