Characterization of mechanical properties of Ti50.6Ni19.4Pd30 alloy showing different phase transformation behaviors

Qing Chao Tian; Jian Shen Wu

doi:10.1117/12.498179

24 April 2003 Characterization of mechanical properties of Ti_50.6Ni_19.4Pd₃₀ alloy showing different phase transformation behaviors

Qing Chao Tian, Jian Shen Wu

Author Affiliations +

Proceedings Volume 5116, Smart Sensors, Actuators, and MEMS; (2003) https://doi.org/10.1117/12.498179
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain

Abstract

Ti_50.6Ni_19.4Pd₃₀ high-temperature shape memory alloy has been prepared exhibiting two kinds of phase transformation behavior. Tensile and thermal mechanical experiments were carried out to characterize the mechanical properties. It is found that the mechanical properties of the alloy showing B2-B19-B19’ two-stage phase transformation behavior changes compared with that showing B2-B19 one-stage phase transformation behavior. Complete linear superelasticity is obtained in both the two alloys. Owing to the high elastic modulus of B19’, a step exists in the modulus curves corresponding to B19-B19’ in the B2-B19-B19’ transformation; B2-B19 transformation is responsible for a trough in the modulus curves. A certain kind of training can significantly increase both the transformation strain and the superelastic strain, which are meaningful parameters in functional materials and smart structures.

Citation Download Citation

Qing Chao Tian and Jian Shen Wu "Characterization of mechanical properties of Ti_50.6Ni_19.4Pd₃₀ alloy showing different phase transformation behaviors", Proc. SPIE 5116, Smart Sensors, Actuators, and MEMS, (24 April 2003); https://doi.org/10.1117/12.498179

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