Electro–Thermo–Mechanical Characterization of Shape Memory Alloy Wires for Actuator and Sensor Applications, Part 2: High‐Ambient‐Temperature Behavior
Dominik Scholtes,
Stefan Seelecke,
Paul Motzki
Abstract:The typical phase transformation temperatures of commercially available shape memory alloys (SMA) for actuator applications are in the region of 80 °C to 90 °C for austenite finish and around 60 °C for martensite start. That limits the areas of application for SMA actuators, as increased ambient temperatures restrict their functionality. Especially in the industrial and automotive sectors, operational temperatures of 80 °C and higher are commonly required. This article discusses the limits of operation tempera… Show more
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