Method for endowing Ni-enriched TiNi shape memory alloy with two-way shape memory characteristic
A technology of memory alloy and memory, which is applied in the field of endowing Ni-rich TiNi shape memory alloy with two-way memory characteristics, which can solve problems such as difficulty in realizing memory performance, and achieve strong cycle deformation stability, reduced energy consumption, and short response time Effect
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[0024] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments:
[0025] See Figure 1~2 As shown, the method for imparting the two-way memory characteristic of the Ni-rich TiNi shape memory alloy is characterized in that: the two-way memory characteristic refers to the "thermal expansion and contraction" type two-way shape memory performance. The steps of the method are Yes:
[0026] (1) The chemical composition and atomic percentage in the Ni-rich TiNi shape memory alloy are: Ni50.8-60.0%, the balance is Ti, and the mass percentage of impurities C and O in the Ni-rich TiNi shape memory alloy should be Less than 0.3%;
[0027] (2) The Ni-rich TiNi shape memory alloy adopts tube 1 as the training object, the wall thickness of tube 1 is 0.3-50mm, the outer diameter is 5-350mm, and the length is 10-300mm;
[0028] (3) The tube 1 of TiNi shape memory alloy is aged in a muffle furnace: the ag...
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