کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11026510 | 1666376 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Manufacture of biodegradable magnesium alloy by high speed friction stir processing
ترجمه فارسی عنوان
تولید آلیاژ منیزیم زیست تخریب پذیر توسط اصطکاک با سرعت بالا
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کلمات کلیدی
منیزیم، پردازش اصطکاک اصلاح سطح، خوردگی، قطبش، طیف سنجی امپدانس الکتروشیمیایی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
چکیده انگلیسی
Friction stir processing (FSP) with a high rotational speed (6000ârpm) was employed to modify surface properties of magnesium alloy through grain refinement and incorporated nano-hydroxyapatite (nHA) particles. Hardness testing indicated that the distributed nanoparticles have largely influenced the hardness of the surface layer and measurements of average hardness varied with different amounts of nHA particles applied. Corrosion tests revealed that FSP had reduced the corrosion rate of ZK60 magnesium alloy by more than one order of magnitude due to the combined effects of grain refinement and low surface energy. The corrosion rates of modified layers could be manipulated by nHA content of selection since nHA plays an important role in destroying the continuity of magnesium matrix and producing a more protective biomineralized film on composites when immersed in simulated body fluid (SBF). Two kinds of equivalent circuits were proposed to explain the corrosion mechanism. The simulation values fitted the experimental data very well by using the equivalent circuits, regardless of differences in samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Manufacturing Processes - Volume 36, December 2018, Pages 22-32
Journal: Journal of Manufacturing Processes - Volume 36, December 2018, Pages 22-32
نویسندگان
Dingqiang Qin, Haorui Shen, Zhikang Shen, Haiyan Chen, Li Fu,