کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470471 990326 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selective surface oxidation and nitridation of NiTi shape memory alloys by reduction annealing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Selective surface oxidation and nitridation of NiTi shape memory alloys by reduction annealing
چکیده انگلیسی

The current investigation aims in understanding the effect of short-term (300 s) annealing of NiTi shape memory alloys (SMAs) in a reducing atmosphere of N2–10% H2. The influence of temperature on the resulting surface morphology and chemistry is elucidated. On annealing at 600 °C, the surface is covered with a thin layer of titanium oxide, which is 7.5 nm thick, while at 800 °C, the surface is covered with a golden-yellow layer of TiN of thickness more than 100 nm. The surface analysis carried out by XPS on the specimen annealed at 800 °C confirms the formation of TiN and more notably, the surface is devoid of Ni.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 51, Issue 3, March 2009, Pages 635–641
نویسندگان
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