Development of a stress-induced martensitic transformation criterion for a Cu–Al–Be polycrystalline shape memory alloy undergoing uniaxial tension

García-Castillo, F.N.; Cortés-Pérez, J.; Amigó, V.; Sánchez-Arévalo, Francisco M.; Lara-Rodríguez, G.A.

doi:10.1016/j.actamat.2015.06.044

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Other researchers introduce grain orientation through the use of the Schmid factor (SF) for stress induced martensitic transformation (SIMT) (Kaouache et al, 2006). A different approach was presented by (García-Castillo et al, 2015) where direct observation of the selected variants was made during a tensile test on polycrystalline martensite with known grain orientations. These authors proposed criteria based on the SF and on the strain tensor of the respective variants formed and concluded that the optimal criterion combines elements of both.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Martensite Variant Selection in a Single Crystal Cu-Al-Be Shape Memory Alloy in a Tensile Test

Castillo¹,

Schouwenaars²,

Pérez³

et al. 2022

JER

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This workanalyses the crystallographic martensite variants (MVs) which are activated in a Cu-Al-Be monocrystal subject to a tensile test. Four variants were observed in-situ and analyzed by means of the Schmid Factor (SF) criterion. A finite element simulation was performed to obtain the stress in the regions where the martensite variants are observed. The results of the simulation are in good agreement with the variants predicted by the SF, with only small deviations from the ideal orientation of the martensite phase. This result provides interesting information to be used in future refinements of the criteria presented in earlier research.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Martensite Variant Selection in a Single Crystal Cu-Al-Be Shape Memory Alloy in a Tensile Test

Castillo¹,

Schouwenaars²,

Pérez³

et al. 2022

JER

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“…Although these effects have been extensively studied, there are still persistent efforts to improve the extraordinary properties of these materials; moreover, special interest has been focused on the shape memory triggering mechanisms. Conventional ways to obtain the shape memory effect (SME) include temperature changes, stress, exposure to magnetic fields, or a combination of these [3,4]. In metallic alloys, the SME is more commonly reached by temperature or stress [5], although new alternatives such as laser irradiation have been explored as well.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photomechanical response of a Ni–Ti shape memory alloy coated with polymer-based photothermal composites

Pérez-Zúñiga

Sánchez-Arévalo

Hernández‐Cordero

2017

Smart Mater. Struct.

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A simple way to enhance the activation of shape memory effects with light in a Ni–Ti alloy is demonstrated. Using polydimethylsiloxane-carbon nanopowder (PDMS+CNP) composites as coatings, the one-way shape memory effect (OWSME) of the alloy can be triggered using low power IR light from a laser diode. The PDMS+CNP coatings serve as photothermal materials capable to absorb light, and subsequently generate and dissipate heat in a highly efficient manner, thereby reducing the optical powers required for triggering the OWSME in the Ni–Ti alloy. Experimental results with a cantilever flexural test using both, bare Ni–Ti and coated samples, show that the PDMS+CNP coatings perform as thermal boosters, and therefore the temperatures required for phase transformation in the alloy can be readily obtained with low laser powers. It is also shown that the two-way shape memory effect (TWSME) can be set in the Ni–Ti alloy through cycling the TWSME by simply modulating the laser diode signal. This provides a simple means for training the material, yielding a light driven actuator capable to provide forces in the mN range. Hence, the use of photothermal coatings on Ni–Ti shape memory alloys may offer new possibilities for developing light-controlled smart actuators.

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An Asymmetric Elasto-Plastic Phase-Field Model for Shape Memory Effect, Pseudoelasticity and Thermomechanical Training in Polycrystalline Shape Memory Alloys

Cissé

Zaeem

2020

Acta Materialia

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Development of a stress-induced martensitic transformation criterion for a Cu–Al–Be polycrystalline shape memory alloy undergoing uniaxial tension

Cited by 4 publications

References 30 publications

Analysis of the Martensite Variant Selection in a Single Crystal Cu-Al-Be Shape Memory Alloy in a Tensile Test

Analysis of the Martensite Variant Selection in a Single Crystal Cu-Al-Be Shape Memory Alloy in a Tensile Test

Enhanced photomechanical response of a Ni–Ti shape memory alloy coated with polymer-based photothermal composites

An Asymmetric Elasto-Plastic Phase-Field Model for Shape Memory Effect, Pseudoelasticity and Thermomechanical Training in Polycrystalline Shape Memory Alloys

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