Nitinol is a kind of shape memory alloy.
Its expansion rate of more than 20%, fatigue life of 1 * 10 to the power of 7, damping characteristics are 10 times higher than ordinary springs, its corrosion resistance is better than the current good medical stainless steel, so it can meet the needs of all kinds of engineering and medical applications, is a very functional material.
In addition to its unique shape memory function, memory alloy also has the characteristics of wear resistance, corrosion resistance, high damping and superelasticity.
Memory alloys currently used include titanium-based, copper-based, and iron-based.At present, nitinol shape memory alloy is the most widely used, the most comprehensive research.Good stability, excellent biocompatibility and other characteristics, its application in medicine is other shape memory alloys can not be replaced.
For finished tubes with an outer diameter of 0.3 mm-3.0 mm, after interception, the actual operation of the recovery of the final temperature can be tested by the bending recovery method specified in ASTM F2082-15.