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Shape Memory Alloys and Collisions
2016We consider a solid, for instance a car, colliding a shape memory alloy solid, for instance a guard-rail. We address this problem assuming the collision is instantaneous. For a given percussion, the velocity of the shape memory alloy solid are predicted by the theory in agreement with the physical sense.
Fremond, Michel, Marino, Michele
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JOM, 1979
Shape-memory alloys are capable of undergoing reversible phase transitions as a result of temperature, pressure, or other stress-related changes. These materials exhibit a mechanical type of shape memory called pseudoelasticity and, under certain conditions, linear superelasticity. The recoverable strain or shape is generally .
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Shape-memory alloys are capable of undergoing reversible phase transitions as a result of temperature, pressure, or other stress-related changes. These materials exhibit a mechanical type of shape memory called pseudoelasticity and, under certain conditions, linear superelasticity. The recoverable strain or shape is generally .
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Shape memory alloys. Ultralow-fatigue shape memory alloy films.
Science (New York, N.Y.), 2015Functional shape memory alloys need to operate reversibly and repeatedly. Quantitative measures of reversibility include the relative volume change of the participating phases and compatibility matrices for twinning. But no similar argument is known for repeatability.
Christoph, Chluba +6 more
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2017
One focuses on «shape memory alloys» (SMAs), where a phase transformation (martensite) can be induced by stress and (or) temperature variations. A process of martensite variants reorientation can also take place. The SMAs functional properties such as pseudoelasticity, one-way shape memory effect, recovery stress, double-shape memory effect (training ...
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One focuses on «shape memory alloys» (SMAs), where a phase transformation (martensite) can be induced by stress and (or) temperature variations. A process of martensite variants reorientation can also take place. The SMAs functional properties such as pseudoelasticity, one-way shape memory effect, recovery stress, double-shape memory effect (training ...
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MRS Bulletin, 1993
Numerous metallic alloys are now known to exhibit a shape memory effect through which an article deformed at a lower temperature will regain its original undeformed shape when heated to a higher temperature. This behavior is basically a consequence of a martensitic phase transformation.
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Numerous metallic alloys are now known to exhibit a shape memory effect through which an article deformed at a lower temperature will regain its original undeformed shape when heated to a higher temperature. This behavior is basically a consequence of a martensitic phase transformation.
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Applications of shape memory alloys in optics
Applied Optics, 1998The application of shape memory alloy (SMA) thin films in optical devices is introduced and explored for the first time. Physical and optical properties of titanium-nickel (TiNi) SMA thin films change as these films undergo phase transformation on heating.
B, Sutapun, M, Tabib-Azar, M A, Huff
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A lightweight shape-memory magnesium alloy
Science, 2016Lightweight shapeshifting alloys Shape memory alloys (SMAs) spring back into shape after they are deformed, a useful property for a variety of applications. Transition metal alloys, which are robust but dense, dominate the SMA landscape. Ogawa et al. report a new type of lightweight SMA made from magnesium
Yukiko, Ogawa +3 more
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2012
Abstract This article focuses on the specific aspects of nitinol that are of interest to medical device designers. It describes the physical metallurgy, physical properties, and tensile properties of the nitinol. The article discusses the factors influencing superelastic shape memory effects, fatigue, and corrosion in medical device ...
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Abstract This article focuses on the specific aspects of nitinol that are of interest to medical device designers. It describes the physical metallurgy, physical properties, and tensile properties of the nitinol. The article discusses the factors influencing superelastic shape memory effects, fatigue, and corrosion in medical device ...
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1998
Abstract The term shape memory alloys (SMAs) refers to the group of metallic materials that demonstrate the ability to return to some previously defined shape or size when subjected to the appropriate thermal procedure. Materials that exhibit shape memory only upon heating are referred to as having a one-way shape memory.
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Abstract The term shape memory alloys (SMAs) refers to the group of metallic materials that demonstrate the ability to return to some previously defined shape or size when subjected to the appropriate thermal procedure. Materials that exhibit shape memory only upon heating are referred to as having a one-way shape memory.
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