Influence of Ta content on martensitic transformation and shape memory properties of Cu–Al–Ni–Mn shape memory alloy

Yildiz, Köksal

doi:10.1007/s00339-020-03475-9

Cited by 10 publications

(1 citation statement)

References 15 publications

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“…In recent years, with the development of understanding of martensitic transformation, several new SMAs based TiNi have been developed, including those with fine hysteresis and stable functional characteristics, also the high temperature SMA with great recovery of strain and stress (Tong et al, 2020). Yildiz et al (2020) added TA to Cu-Al-Ni alloy, so that the shape recovery rate of the alloy can reach 87.5% at 200°C. Li et al (2021) designed a high entropy SMA, which has large hyperelasticity below 285°C.…”

Section: Introductionmentioning

confidence: 99%

Optimization design of surface accuracy of SMC structure driven by space thermal radiation

Pan

Jiang

Dong

et al. 2022

Journal of Intelligent Material Systems and Structures

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The cable-net structure of large peripheral truss deployable antenna is radiated by the sun and planets for a long period of time, resulting in large thermal deformation and mechanical relaxation, which degrades the service performance of the antenna. In this paper, an optimal control strategy for surface accuracy of shape memory cable-net (SMC) structure under space thermal radiation is proposed. First, the shape memory alloy (SMA) is introduced and integrated with the cable-net structure. The SMC structure with shape memory effect (SME) has the capability to transform the space thermal radiation into a favorable factor for on-orbit adjustment of surface accuracy, in order to realize the on-orbit shape preservation of cable-net antenna in space environment. Then, the space temperature field of cable-net structure is calculated. Finally, the cable-net structure with a diameter of 2 m is simulated, and the influence of the diameter of SMA wire, slope for the relation between the critical stress of phase transformation and inverse phase transformation and temperature on surface accuracy are analyzed. It shows that the implantation of SMA can greatly improve the surface accuracy of cable-net structure in a single thermal cycle.

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Section: Introductionmentioning

confidence: 99%