Thermal behavior of the Cu–22.55 at.%Al alloy with small Ag additions

Silva, R.A.G.; Adorno, A. T.; Magdalena, Aroldo Geraldo; Carvalho, T.M.; Stipcich, Marcelo; Cuniberti, A.; Castro, M. L.

doi:10.1007/s10973-010-0908-4

Cited by 8 publications

(4 citation statements)

References 12 publications

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“…The endothermic thermal event P 3 , at about 650 K, corresponds to the transition in which the martensitic phase retained in the slow cooling forms the β 1 (DO 3 ) phase. A fraction of this β 1 (DO 3 ) phase is transformed in the complex (α + γ) phase and the remaining part undergoes a β 1 (DO 3 ) → β(A2) order-disorder transition at 790 K, peak P 4 [8]. The X-ray diffraction patterns shown in Fig.…”

Section: Resultsmentioning

confidence: 96%

Investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al alloy with Ag and Mn additions

Silva

Paganotti

Gama

et al. 2013

Materials Characterization

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Section: Resultsmentioning

confidence: 96%

Investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al alloy with Ag and Mn additions

Silva

Paganotti

Gama

et al. 2013

Materials Characterization

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“…The Cu-based shape memory alloys can transform from the ordered DO3 structure to a long-period stacking structure known as 18R. Also, they can achieve shape recovery in the crystallization range known as the β-phase, which contains an irregular body-centered cubic (BCC) structure and can be observed at high temperature during the heating process [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect on Thermal and Structural Properties of Element Content in CuAlBe Shape Memory Alloys Irradiated with a Constant Gamma Radiation Dose

Balo

ORHAN²

2023

Turkish Journal of Science and Technology

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Shape memory alloys with two different weight percentages of CuAlBe were irradiated with a 40 kGy constant gamma radiation dose, and the resulting thermal and structural changes in the alloys were examined. Changes in enthalpy and in the transformation temperature of the alloys were determined by differential scanning calorimetry (DSC), and thermodynamic parameters of alloy samples were calculated. Microstructural changes were determined by X-ray analysis. Microstructural changes were verified by metallographic observations, and microhardness measurements were taken. The study investigated to what extent the physical parameters of CuAlBe shape memory alloys changed depending on the alloying elements when subjected to a constant irradiation dose.

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“…Phase transformations in alloys are known to be accompanied by changes in their physical properties. One of the properties that are most sensitive to these processes is the ER, whose variation allows establishing the temperature of the onset and completion of the structural phase transition [28,29]. Since the influence of precipitates transformation on the TEP and ER during continuous heating is not fully understood, further investigation for the evolution of TEP and ER with the development of the precipitates is necessary.…”

Section: Introductionmentioning

confidence: 99%

Correlative study of the thermoelectric power, electrical resistivity and different precipitates of Al–1.12Mg2Si–0.35Si (mass%) alloy

Zeid

Gaffar

Gaber

et al. 2015

J Therm Anal Calorim

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Characterization of the different precipitates developed in supersaturated Al-1.12Mg 2 Si-0.35Si (mass%) alloy by thermoelectric power (TEP) and electrical resistivity (ER) measurements was considered. The effect of precipitation of coherent, semi-coherent and noncoherent phases on the TEP was found impressive in describing different precipitates. Upon growing and coherency loss of b 0 particles, the TEP increases to reach a maximum value. TEP begins to approach a stable value by the formation of the equilibrium b (Mg 2 Si) precipitates and then stabilizes with the complete growth of more stable precipitates b phase and Si particles. The first-order coefficient a of the ER-temperature dependence was found dominating in the temperature range 300-635 K. Above this temperature range, the second-order coefficient b starts sharing effectively the resistivity-temperature dependence. Furthermore, it has been shown that the range of temperature in which the first-order coefficient a is dominating slightly increases after slow cooling twice to the room temperature in two successive runs. Correlation of a and b with the lattice rigidity of the alloy under investigation was established. Quenching and slow cooling affect strongly the observed correlation. All measurements in the present investigation were taken under non-isothermal conditions.

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Thermal behavior of the Cu–22.55 at.%Al alloy with small Ag additions

Cited by 8 publications

References 12 publications

Investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al alloy with Ag and Mn additions

Investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al alloy with Ag and Mn additions

Effect on Thermal and Structural Properties of Element Content in CuAlBe Shape Memory Alloys Irradiated with a Constant Gamma Radiation Dose

Correlative study of the thermoelectric power, electrical resistivity and different precipitates of Al–1.12Mg2Si–0.35Si (mass%) alloy

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