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What are the differences between shape memory alloys and ordinary alloys?

志联

2025-03-22

  What is the difference between shape memory alloys and ordinary alloys?

  Shape memory alloys are composed of two rare elements that exhibit shape memory effects due to their thermal expansion, austenite transformation, and inverter power supply. Shape memory alloys are currently the best shape memory materials. To date, 50 different types of aluminum alloys have been found to exhibit shape memory effects. There are many successful applications in the aerospace industry. Giant wireless antennas on artificial earth satellites can be made of memory alloys. Before sending the artificial satellite, the parabolic antenna is first fitted into the body of the communication satellite, then the rocket is launched, sending the satellite into its planned orbit, and then preheating. Due to its memory function, the telescope-type antenna can naturally restore the antenna to its parabolic shape.

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