Article ID Journal Published Year Pages File Type
5459158 Journal of Alloys and Compounds 2017 22 Pages PDF
Abstract
Ti-16 at.%Nb alloy is a promising candidate as shape memory alloy (SMA) for high temperature applications. In the present study, the shape memory effect (SME) of the alloy is improved significantly via cold-rolling and post-deformation annealing at 650, 700 and 750 °C for 10 min. When further increasing the annealing temperature, the SME of alloy declines. In the specimens annealed at 650, 700 and 750 °C for 10 min, the 4% pre-stain can recovery almost completely upon heating. Martensite reorientation in these specimens takes place at a lower stress level compared with the solution treated alloy. The greater difference between martensite reorientation and dislocation slip in the annealed samples is responsible for the improved SME.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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