کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5350264 | 1503659 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Laser alloying of Ti-Si compound coating on Ti-6Al-4V alloy for the improvement of bioactivity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Laser alloying of Ti-Si compound coating on Ti-6Al-4V alloy is carried out by a pulsed Nd:YAG laser. The corresponding microstructure, phase structure, microhardness profiles, corrosion properties and bioactivity of the laser-alloyed coatings are investigated to optimize the atomic ratio of Ti-Si. The laser alloyed Ti-Si compound coatings are free of cracks, and primarily present block-like crystals, lath-like crystals and dendrite crystals. The phase structures of both laser-alloyed Ti + Si and 5Ti + 3Si coatings are mainly consisted of α-Ti and Ti5Si3, while the laser-alloyed Si coating is mainly consisted of TiSi2 and Ti5Si3. Microhardness test indicates that the laser-alloyed Si coating has the highest microhardness. Also, corrosion resistance measurement reveals that the corrosion resistance of the laser-alloyed Si coating is much better than that of the Ti-6Al-4V alloy. Evaluation of bioactivity shows that cell growth on the laser-alloyed Si coating with high volume fraction of Ti-Si compounds is faster than that of the Ti-6Al-4V alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 305, 30 June 2014, Pages 16-23
Journal: Applied Surface Science - Volume 305, 30 June 2014, Pages 16-23
نویسندگان
Y. Wu, A.H. Wang, Z. Zhang, R.R. Zheng, H.B. Xia, Y.N. Wang,