Thermodynamics and characterization of shape memory Cu–Al–Zn alloys

Gomidželović, Lidija; Požega, Emina; Kostov, Ana; Vuković, Nikola; Krstić, Vesna; Živkovič, Dragana; Balanović, Ljubiša

doi:10.1016/s1003-6326(15)63885-7

Cited by 17 publications

(5 citation statements)

References 31 publications

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“…Therefore, the damping capacity of Cu‐based SMAs in martensitic state can be improved by refining the martensitic structure and increasing the density of martensitic interface. [ 13 ] Therefore, it is imperative to refine the grains of Cu‐based SMAs effectively.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Damping Property of Porous Cu–Al–Ni Shape Memory Alloys Fabricated using Different Raw Materials

Chu

Hao

et al. 2023

Physica Status Solidi (a)

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Porous Cu‐Al‐Ni shape memory alloys (SMAs) were fabricated via powder metallurgy method by using Cu, Al, Ni powders and Cu‐Al‐Ni alloy powder as raw materials, respectively. It is found that the two kinds of specimens have similar macroscopic morphologies: connected pores are uniformly distributed in the Cu‐Al‐Ni matrix, forming a three‐dimensional network structure. By comparison, the specimen fabricated by using alloy powder has much finer microstructures than the specimens fabricated by using Cu, Al, Ni powders. After adding Ce element to the latter, the microstructure of the Cu‐Al‐Ni matrix was significantly refined because of the formation of Ce‐rich particles. Damping tests show that the latter has superior damping capacity than the former. With the increase of Ce content, the damping of the latter increases first and then decreases. When the Ce content reaches 0.05 wt.%, the highest damping can be achieved. Correlated mechanisms were discussed based on the microstructural observations.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Damping Property of Porous Cu–Al–Ni Shape Memory Alloys Fabricated using Different Raw Materials

Chu

Hao

et al. 2023

Physica Status Solidi (a)

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“…Among these, there is a group of materials that are able to respond to a special stimulus through the alteration of the encircling physical and chemical features. These stimuli include the temperature (thermo-receptive materials), tension or pressure (mechanical-receptive materials), current or electrical tension (electro-receptive materials), magnetic field (magneto-receptive materials), change of the pH, of the solvent, or humidity (chemical-receptive materials) and light (photo-sensitive materials) [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

In-Situ Plasma Monitoring during the Pulsed Laser Deposition of Ni60Ti40 Thin Films

et al. 2020

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The properties of pulsed laser deposited of Ni60Ti40 shape memory thin films generated in various deposition conditions were investigated. In-situ plasma monitoring was implemented by means of space- and time-resolved optical emission spectroscopy, and ICCD fast camera imaging. Structural and chemical analyses were performed on the thin films using SEM, AFM, EDS, and XRD equipment. The deposition parameters influence on the chemical composition of the thin films was investigated. The peeled layer presented on DSC a solid-state transformation in a different transformation domain compared to the target properties. A fractal model was used to describe the dynamics of laser produced plasma through various non-differentiable functionalities. Through hydrodynamic type regimes, space-time homographic transformations were correlated with the global dynamics of the ablation plasmas. Spatial simultaneity of homographic transformation through a special SL(2R) invariance implies the description of plasma dynamics through Riccati type equations, establishing correlations with the optical emission spectroscopy measurements.

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“…The extensive application of copper alloys originates from its favorable electrical and thermal conductivity, strength, elastic modulus, and excellent integrated performance [1][2][3][4] . The Cu-Be, among other copper alloys, offers an excellent combination of electrical and mechanical responses.…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Liu

Wang

Liu

et al. 2020

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The study investigates the effect of heat treatment on the microstructure evolution and properties of an age-hardened Cu-3Ti-2Mg alloy. The precipitated Cu 2 Mg and β'-Cu 4 Ti phases consequently yield a depletion of the Cu matrix in regards to Ti and Mg solutes, which enhances the electrical conductivity. The Cu 2 Mg Laves phase and β'-Cu 4 Ti phase precipitates increase the hardness of the alloy due to the consistency and coherency of the later phase. However, the decrease of hardness is mainly associated with the coarse microstructures, that can be formed due to the phase transformation from metastable β'-Cu 4 Ti phase to more stable Cu 3 Ti phase. In the range of experiments, the optimum process is solution treatment at 700°C for 4 h, with subsequent age-hardening at 450°C for 4 h. The electrical conductivity, hardness, tensile strength, and elongation of the Cu-3Ti-2Mg alloy were 15.34 %I ACS, 344 HV, 533 MPa, and 12%, respectively.

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Thermodynamics and characterization of shape memory Cu–Al–Zn alloys

Cited by 17 publications

References 31 publications

Fabrication and Damping Property of Porous Cu–Al–Ni Shape Memory Alloys Fabricated using Different Raw Materials

Fabrication and Damping Property of Porous Cu–Al–Ni Shape Memory Alloys Fabricated using Different Raw Materials

In-Situ Plasma Monitoring during the Pulsed Laser Deposition of Ni60Ti40 Thin Films

Archives of Metallurgy and Materials

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