[PDF] Top 20 Effect of Heat Aging on Thermal and Mechanical Properties of Ti Ni Nb Shape Memory Alloy

... of heat aging on thermal and mechanical properties of shape memory ...are Ti-Ni-(6–12 at%)Nb shape memory ...short aging time, ... See full document

... stress-induced martensite transformation and twin deforma- tion propagate along the longitudinal direction with regu- larity, a mechanical simulation model of the specimen can be built as a series combined model ... See full document

... previous shape due to its shape memory effect upon reaching the start temperature of its reverse transformation or ...fabrication, heat treatment, and other manufacturing and fabrication ... See full document

... 50 Ti alloy, all aged specimens exhibited almost the same transformation temperature compared with that of solution-treated specimen, which is consistent with the fact that the aging treatment did ... See full document

... Then, to evaluate the correlation between the SMHT condition and the amount of Ni solid solution in the substrate quantitatively, the relations between the SMHT conditions and the lattice parameter were ... See full document

... in Ti–Ni–Nb alloy was investigated quantitatively by applying various levels of ...two-way memory strain. The maximum two-way memory strain observed in this experiment was ... See full document

... Nakayama et al. [6] found that the Ti-50.2% Ni alloy was deformed by 50% cold rolling, the martensitic transformation did not occur during the cooling process. V.G.Pushin et al. [7] have shown that ... See full document

... developed Ni-free Ti-based shape memory alloy (SMA) wire in orthodontic tooth movement by comparing with a nickel-titanium (Ni-Ti) alloy ...and mechanical ... See full document

... in Ti–6Mo–3Ga–(0– 4)Nb alloys which were subjected to aging treatment at temperatures between 373 and 1073 K for 60 ...of heat treatment temperature. Aging the specimens at intermediate ... See full document

... (SE), shape memory effect (SME) and biocompatibility of TiNi based shape memory alloys have found various applications in medical devices, such as guidewires and stents, as well as actuators ... See full document

... of Nb to Cu–Zr–Ti alloys is expected to cause a decrease in glass-forming ability because their positive and zero heats of mixing between Nb and Cu, Zr or Ti, in good agreement with the ... See full document

... to Ni–Nb–Ti–Zr al- loys, in addition to an increase in the maximum rod diameter to 4 mm for glass ...element effect on the glass-forming ability and mechanical properties of the ... See full document

... size effect), and most importantly, by the elas- tic recovery of the material around indention after load removal ...interferences. Ni-Ti showed higher elastic recovery during unloading ...with ... See full document

... was Ni–14.7 mol%Mn–13.3 mol%Ga. Consequently, on the heat-treatment at comparatively low temperature, the precip- itation of a compound with the approximate compositions of in the film are ... See full document

... (a) Ni/Ti ratio is kept to be 1.0 with various Nb contents, and (b) Nb content is kept to be 6 mol% with various Ni/Ti ...the alloy without Nb, the plateau which is ... See full document

... the shape memory properties, the convenient bending test was carried out at room ...round shape (¼ 7 mm) and heated up about 500 ...the shape memory and superelastic ... See full document

... Ni-free Ti-base shape memory alloys (SMA) have been systematically developed by our group for biomedical applications in order to replace Ti-Ni SMAs which posses the possibility ... See full document

... the Ti-26 at% alloy subjected to the solution ...The shape memory effect was due to the stress induced martensitic transformation or the rearrangement of martensite variants during loading and ... See full document

... Storage modulus (E) and damping capacity (tan ) were measured as functions of temperature using a dynamic mechanical analyzer (DMA) NETZSCH DMA242C in tensile mode, where is the phase-lag between the applied ... See full document

... in shape memory alloys occurs at low temperatures at which the speed of diffusion reactions is practically zero and the mobility of atoms very ...In shape memory alloys the starting structure ... See full document