Low-temperature aging treatment effect the properties of Ti-rich NiTi shape memory alloy
Source abstract
Abstract
The effect of low-temperature aging treatment on the phase transformation and microstructure on the Ti-rich NiTi shape memory alloys. The recycled Ti wires are used to produce an alloy with a composition (49.9% at. Ni, and 50.1% at. Ti). The VIM method is used to manufacture the NiTi SMA. The samples aged at different temperatures after the solution heat treatment at 850 °C for 15 min. The results show that all samples undergo a one-step transformation during the cooling and heating processes. Increasing the As and Af of samples aged at 350 °C, and 450 °C, while decreasing the As and Af temperatures of the sample aged at 550 °C, compared with a solution-treated sample. The microstructure of all SMAs samples contains the Ti2Ni phase and increases its amount with increasing aging temperatures.
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Research context
OpenAlex topics: Shape Memory Alloy Transformations · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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