Shape memory effect and linear actuators based on Cu-Al-Ni single crystals |
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Authors: | S A Pulnev V I Nikolaev A A Priadko A V Rogov A V Chikiryaka and S P Nikanorov |
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Institution: | (1) Ioffe Physical-Technical Institute, Russian Academy of Sciences, Polytechnicheskaya, 26, St. Petersburg, Russia;(2) Saint-Petersburg State Polytechnic University, St. Petersburg, Russia |
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Abstract: | Recovery stress generation under thermal cycling has been experimentally studied in clamped shape memory Cu-Al-Ni single crystals
up to 9% reversible strain. It is shown that such crystals are capable of repeated force generation upon heating up to 600
K and single actuation when heated to 700 K with a maximal stress of 350 MPa. The main principles of designing cyclic linear
actuators are considered and a technique for calculating their force characteristics is proposed. The calculation is based
on the mathematical model of linear actuator. |
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