24 April 2003 Characterization of mechanical properties of Ti50.6Ni19.4Pd30 alloy showing different phase transformation behaviors
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Abstract
Ti50.6Ni19.4Pd30 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.
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Qing Chao Tian, Qing Chao Tian, Jian Shen Wu, Jian Shen Wu, } "Characterization of mechanical properties of Ti50.6Ni19.4Pd30 alloy showing different phase transformation behaviors", Proc. SPIE 5116, Smart Sensors, Actuators, and MEMS, (24 April 2003); doi: 10.1117/12.498179; https://doi.org/10.1117/12.498179
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