60 research outputs found
Atomistic study of temperature and strain rate-dependent phase transformation behaviour of NiTi shape memory alloy under uniaxial compression
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An Apparatus to Measure the Shape Memory Properties of Nitinol Tubes for Medical Applications
No full textA new apparatus has been developed to characterize the shape memory properties of Nitinol tubes and stents. In tests run on this apparatus, the samples are deformed in the radial direction in the martensitic state to a prescribed outer-fiber strain. Recovery strain and force are monitored continuously on heating. Values of properties as measured on this apparatus are compared to corresponding values from three-point and four-point bending tests, as well as DSC. We have found that this is a fast and reliable system to test transformation temperatures and recovery forces of tubes and stents
Trigger Stress for Stress-Induced Martensitic Transformation during Tensile Deformation in Ti-Al-Nb Alloys: Effect of Grain Size
No full textEffect of room temperature prestrain and subsequent heat treatment on the creep life of a Ni-base superalloy
No full textThe formation of grain boundary void in cast nickel base alloys after cold working and annealing
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