Fabrication and internal friction behaviors of novel porous CuAlMn shape memory alloy filled with polystyrene

Wang, Qingzhou; Lu, Dongmei; Cui, Chunxiang; Yan, Najun; Wang, Qian

doi:10.1016/j.matlet.2012.10.071

Cited by 13 publications

(3 citation statements)

References 9 publications

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“…Similar increases were also noted by adding an additional aging step in the manufacturing process [440]. A far greater enhancement was noted by filling the porosity with viscoelastic polystyrene arising from the additional dissipative material volume and additional interfaces [437]. A similar filling concept was also used by Romberg et al [384] to increase the MFIS of NiMnGa.…”

Section: Applicationsmentioning

confidence: 65%

Review and perspectives: shape memory alloy composite systems

et al. 2015

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Following their discovery in the early 60's, there has been a continuous quest for ways to take advantage of the extraordinary properties of shape memory alloys (SMAs). These intermetallic alloys can be extremely compliant while retaining the strength of metals and can convert thermal energy to mechanical work. The unique properties of SMAs result from a reversible difussionless solid-to-solid phase transformation from austenite to martensite. The integration of SMAs into composite structures has resulted in many benefits, which include actuation, vibration control, damping, sensing, and selfhealing. However, despite substantial research in this area, a comparable adoption of SMA composites by industry has not yet been realized. This discrepancy between academic research and commercial interest is largely associated with the material complexity that includes strong thermomechanical coupling, large inelastic deformations, and variable thermoelastic properties. Nonetheless, as SMAs are becoming increasingly accepted in engineering applications, a similar trend for SMA composites is expected in aerospace, automotive, and energy conversion and storage related applications. In an effort to aid in this endeavor, a comprehensive overview of advances with regard to SMA composites and devices utilizing them is pursued in this paper. Emphasis is placed on identifying the characteristic responses and properties of these material systems as well as on comparing the various modeling methodologies for describing their response. Furthermore, the paper concludes with a discussion of future research efforts that may have the greatest impact on promoting the development of SMA composites and their implementation in multifunctional structures.

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Section: Applicationsmentioning

confidence: 65%

Review and perspectives: shape memory alloy composite systems

et al. 2015

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“…In this process, molecular segments of the EP will dissipate a lot of mechanical energy through their mutual friction. 43 With further increasing the temperature, the EP will enter the viscous flow state and the whole molecular chains will have enough energy to move. At this time, the energy dissipation ability of EP begins to decrease.…”

Section: Resultsmentioning

confidence: 99%

Effects of multi walled carbon nanotubes and multilayer graphene on the damping and quasi-static compressive mechanical properties of novel EP/ZA22 composites

Niu

Yin

et al. 2022

Journal of Composite Materials

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In order to develop novel high damping materials with excellent compressive mechanical properties and energy absorption capacity to meet the needs of buffering and vibration reduction in various fields, epoxy resin (EP) filled foam Zn-22Al (ZA22) composites were fabricated for the first time. EP can significantly improve the damping and compressive mechanical properties of the ZA22 foam due to the superposition of multiple damping sources and the support of EP to pores, respectively. However, the filling of EP will lead to brittleness in the compression process of the composites. It is found that the addition of multi walled carbon nanotubes (MWCNTs) or multilayer graphene (MLG) to EP can efficiently improve the toughness of the composites because of the increased energy consumption in the fracture process of EP, and the damping can also be further improved due to the increased interface density and the amount of polymer chains involved in friction.

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“…By adding Mn into Cu-Al alloys, it has been gained the magnetic properties, and the excellent ductility and large super elasticity strain are obtained by controlling their grain size and texture [16]. Therefore, ternary Cu-Al-Mn shape memory alloys are the most popular one among Cu-Al-based high-temperature memory alloys which are candidates to use in high-technology applications [16,22,23]. However, the performance of these alloys still depends on some questions to be solved [24]: how to improve the unsuitable ductility and workability of the polycrystalline alloys resulting from the coarse grain and how to control the metastability of both the parent and martensite phases which result in complicated ageing effects?…”

Section: Introductionmentioning

confidence: 99%

Thermal and microstructural investigation of Cu–Al–Mn–Mg shape memory alloys

2014

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There are many studies to improve the properties of Cu-Al-Mn shape memory alloys, such as high transformation temperatures, ductility and workability. Most of them have been performed by adding a quaternary component to the alloy. In this study, the effect of trace Mg addition on transformation temperatures and microstructures of three different quaternary Cu-Al-Mn-Mg alloys has been investigated using thermal analysis, optical microscopy and XRD techniques. The transformation temperatures are within the range of 120-180°C, and they have not changed significantly on decreasing the Mn content, replacing with Mg. The fine precipitates have been observed in the alloys with the Mg content up to 1.64 at%. Calculated entropy change and XRD analysis reveal that the alloys with high Al content have mainly 18R-type structure which could be responsible for good ductility and workability.

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Fabrication and internal friction behaviors of novel porous CuAlMn shape memory alloy filled with polystyrene

Cited by 13 publications

References 9 publications

Review and perspectives: shape memory alloy composite systems

Review and perspectives: shape memory alloy composite systems

Effects of multi walled carbon nanotubes and multilayer graphene on the damping and quasi-static compressive mechanical properties of novel EP/ZA22 composites

Thermal and microstructural investigation of Cu–Al–Mn–Mg shape memory alloys

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