Studies of selected mechanical properties of nitinol – shape memory alloy
Journal Title: Archiwum Odlewnictwa - Year 2010, Vol 10, Issue 3
Abstract
Because of their specific properties, shape memory alloys are applied in many domains. The investigations were conducted on nitinol alloy in the form of 3,1 mm diameter wire, whose Af temperature as stated by the manufacturer is Af =65oC. The wire was stretched in a strain hardened state and after annealing at 5000C. The influence of different heat treatments on the engineering stress – strain curve was investigated. Some samples were relieved and again loaded during tensile test. The plotted curves reflect the transformations that occur in alloy microstructure in high-temperature state (austenite) and low-temperature state (martensite).
Authors and Affiliations
J. Kłaput
Keywords
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