Article ID Journal Published Year Pages File Type
1609905 Journal of Alloys and Compounds 2015 4 Pages PDF
Abstract
Microstructure of martensite in Ti50.2Ni29.8Cu20 shape memory alloy (SMA) ribbons has been studied by means of transmission electron microscopy (TEM). The Ti2Ni particles and Guinier-Preston (GP) zones are observed in the ribbons annealed at 773 K for 1 h. Fine subgrains surrounded by nano-scale Ti2Ni particles exist in the interior of martensite plates. The tensile deformation mechanisms of the present ribbons mainly involve the reorientation and the detwinning of the B19 martensite twins.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
Authors
, , , , , ,