Ni–Ti-Hf high-temperature shape memory alloy: Measure of the Clausius-Clapeyron coefficient through mechanical spectroscopy

Pérez-Cerrato, M.; Maaß, Burkhard; Nó, M.L.; Juan, J. San

doi:10.1016/j.jallcom.2020.157948

Cited by 10 publications

(3 citation statements)

References 40 publications

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“…For high-temperature applications, HTSMAs, the transformation temperature is usually increased by addition of ternary alloys to NiTi . Other systems such as NiAl and CuAlNi alloys have high-temperature shape memory characteristics .…”

Section: Introductionmentioning

confidence: 99%

“…19,20 For high-temperature applications, HTSMAs, the transformation temperature is usually increased by addition of ternary alloys to NiTi. 21 Other systems such as NiAl and CuAlNi alloys have high-temperature shape memory characteristics. 22 Many research groups are working on developing SMAs in the search for better strain recovery and transformation temperatures for targeting different applications including aircraft structures, engines, chemical processing, diesel engines, and heating and cooling industries.…”

Section: Introductionmentioning

confidence: 99%

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Shape Memory Hybrid Composites

et al. 2022

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Smart structures can help to resolve many issues related to conventional materials that are being used in different industries. Shape memory alloys (SMAs) are smart materials with better actuation response, vibration damping characteristics, and large strain recovery, making them good candidates due to their high strength and corrosion resistance for various engineering applications. The performance of fiber-reinforced polymer (FRP) composite materials that are replacing many conventional materials due to their good strength, stiffness, and lightweight potential especially in fuel-consuming industries such as aerospace and automotive, can further be improved by impregnation with SMAs. This review discusses the SMA-reinforced FRP composites, leading to shape memory hybrid composite materials, the issues and limitations in composite manufacturing, and their uses in different research arenas including impact and damping applications, seismic protection applications, crack closure applications, shape morphing applications, and self-deployable structures.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Shape Memory Hybrid Composites

et al. 2022

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“…For these reasons, it is necessary to introduce a third alloying element in order to remove these limitations. The mostly used chemical elements are Ta [18], Nb [19], Cu [20], Hf [21], or Fe [22]. For medical applications, a good candidate for Ni substitution is Ta, which in addition to good biocompatibility also gives good visibility during X-ray monitoring.…”

Section: Introductionmentioning

confidence: 99%

Influence of alloying elements on the thermal behavior of NiTi shape memory alloys

et al. 2021

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NiTi based shape memory alloys are one of the most intensely studied alloys from its class. Therefore, diverse commercial applications have been developed due to certain properties such as: shape memory effect, superelasticity and corrosion resistance. Currently, the main applications of NiTi alloys are automotive manufacturing and aerospace actuators, biomedical devices or pipe couplings. In recent years, NiTi shape memory alloys have been alloyed with a third element in order to improve the above-mentioned properties. In order to investigate the influence of the alloying elements on the thermal behavior of NiTi alloys, the addition of the third alloying element (Ta and Nb) is under investigation in the present study. The thermal behavior of the three alloys (NiTi, NiTiNb and NiTiTa) was studied by differential scanning calorimetry. Following the experiments, it was observed that the addition of the third alloying element influences the critical transformation temperatures.

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