Phase stability of CuAlMn shape memory alloys

Zárubová, N.; Novák, V.

doi:10.1016/j.msea.2003.10.346

Cited by 33 publications

(8 citation statements)

References 20 publications

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“…Furthermore, higher cycle counts, approaching hundreds and millions of cycles, would be anticipated in many high-power electronic and photonic applications. While such a study is outside of the scope of the current effort, past studies by Chluba et al [41] and Frenzel et al Furthermore, heat treatment to promote grain growth and favorable texture in NiTi materials [26] or the use of high-conductivity Cu-based materials [47], namely CuAlMn and CuAlNi, could offer further improvement in fast-transient applications. So, given appropriate materials synthesis, it is anticipated that SMAs could be applied to a broader range of applications and design points than experimentally validated in this study but would require a rather complicated material optimization to understand property tradeoffs.…”

Section: Module Thermal Capacitymentioning

confidence: 99%

Solid-state thermal energy storage using reversible martensitic transformations

Sharar

Donovan

Warzoha

et al. 2019

Applied Physics Letters

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The identification and use of reversible Martensitic transformations, typically described as shape memory transformations, as a new class of solid-solid phase change material is experimentally demonstrated here for the first time. To prove this claim, time-domain thermoreflectance, frequency-domain thermoreflectance, and differential scanning calorimetry studies were conducted on commercial NiTi alloys to quantify thermal conductivity and latent heat. Additional Joule-heating experiments demonstrate successful temperature leveling during transient heating and cooling in a simulated environment. Compared to standard solid-solid materials and solid-liquid paraffin, these experimental results show that shape memory alloys provide up to a two order of magnitude higher Figure of Merit. Beyond these novel experimental results, a comprehensive review of >75 binary NiTi and NiTi-based ternary and quaternary alloys in the literature shows that shape memory alloys can be tuned in a wide range of transformation temperatures (from -50 to 330°C), latent heats (from 9.1 to 35.1 J/g), and thermal conductivities (from 15.6 to 28 W/m·K). This can be accomplished by changing the Ni and Ti balance, introducing trace elements, and/or by thermomechanical processing.Combining excellent corrosion resistance, formability, high strength and ductility, high thermal performance, and tunability, SMAs represent an exceptional phase change material that circumvents many of the scientific and engineering challenges hindering progress in this field. MAIN TEXTThermal energy storage (TES) using phase change materials (PCMs) offers tremendous benefits in a diverse array of technology spaces, ranging from large scale power generation to more

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Section: Module Thermal Capacitymentioning

confidence: 99%

Solid-state thermal energy storage using reversible martensitic transformations

Sharar

Donovan

Warzoha

et al. 2019

Applied Physics Letters

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“…Cu-Al-Mn shape memory alloys (SMAs) have attracted increasing attention because of their good shape memory effect, relatively low cost and good mechanical properties in addition to its outstanding damping capacity [1][2][3][4][5]. Several pioneering works have demonstrated that some characteristics such as superelasticity, shape memory effect and the damping properties in Cu-Al-Mnbased SMAs can be enhanced by the addition of alloying elements [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ce addition on the microstructure and damping properties of Cu–Al–Mn shape memory alloys

Chen

et al. 2009

Journal of Alloys and Compounds

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“…4, DSC curves give the large exothermic and endothermic peaks, which is in good correspondence with martensitic and reverse transformations at around 340470 K for samples CAM1, CAM2, CAM3, and 720820 K for CAM4 sample. The transformation temperatures of the studied alloys are higher than that of Cu20.4Al8.7Mn (at.%) and Cu25.3Al4.1Mn (at.%) alloys [13]. Whereas the temperatures of CAM1, CAM2, CAM3 shape memory alloys are lower than that of Cu11.9Al2.5Mn (wt%) shape memory alloys produced by sintering-evaporation process and the CAM4 alloy has the high transformation temperature [14].…”

Section: Thermal Properties Of the Cualmn Alloysmentioning

confidence: 76%

Controlling of Transformation Temperatures of Cu-Al-Mn Shape Memory Alloys by Chemical Composition

2014

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The CuAlMn shape memory alloys having various chemical compositions were prepared by arc melting method to control the phase transformation parameters. The phase transformation parameters and structural properties of the alloys were investigated by dierential scanning calorimetry and optic microscopy, respectively. The eects of the chemical composition on characteristic transformation temperatures, enthalpy and entropy values of CuAlMn ternary system were investigated. The characteristic transformation temperatures of austenite and martensite phase (As, A f , Ms, and M f) are increased with change in the chemical composition of the alloys. The average crystallite size for the alloys was calculated to determine the eect of aluminum and manganese compositions on the transformation temperatures. The change in transformation temperatures indicates the same trend with change in crystallite size. The obtained results suggest that the phase transformation parameters of the CuAlMn alloys can be controlled by Al and Mn contents.

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Phase stability of CuAlMn shape memory alloys

Cited by 33 publications

References 20 publications

Solid-state thermal energy storage using reversible martensitic transformations

Solid-state thermal energy storage using reversible martensitic transformations

Effect of Ce addition on the microstructure and damping properties of Cu–Al–Mn shape memory alloys

Controlling of Transformation Temperatures of Cu-Al-Mn Shape Memory Alloys by Chemical Composition

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