Study Of The Metallographic Of Nickel-Titanium Alloy Material By Using Electrochemical Polish Method

摘要

poly-crystal nickel-titanium (NiTi) has been a potential material,because of its good superelasticity,radiopacity and shape memory properties.To study further on this material (such as mechanical characteristic,elasticity),microcosmic properties of NiTi must be known.Therefore the crystal structure seems to be very significant for research.Traditional metallographical technology makes use of mechanical polishing and corrosion.In this work,a new method of electrochemical corrosion is put forward,which is more easily and clearly to show the crystalline grain of metal.