کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
191880 459730 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electropolishing and passivation of NiTi shape memory alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Electropolishing and passivation of NiTi shape memory alloy
چکیده انگلیسی

Electropolishing of NiTi alloy has been investigated. The influence of polishing bath composition and the operating conditions instead of the conditions of the process on the quality of the surface, evaluated by AFM and SEM methods, was established. Morphologically uniform surfaces were obtained only in the case of solutions containing hydrofluoric and sulfuric acids. Electropolished samples were sterilized and thermally passivated, then their corrosion resistance was measured in Tyrode's physiological solution. It was established that already after the electropolishing the corrosion resistance of NiTi alloy increases due to the spontaneously formed TiO2 layer. The increase of the thickness of the layer during sterilization and thermal passivation causes further increase in the corrosion resistance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 55, Issue 7, 28 February 2010, Pages 2437–2441
نویسندگان
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