Thermoelasticity, pseudoelasticity and the memory effects associated with martensitic transformations

Delaey, L.; Krishnan, RV; Tas, H.; Warlimont, Hans

doi:10.1007/bf00552939

Cited by 362 publications

(84 citation statements)

References 46 publications

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“…Since the mechanism in the latter is essentially the same as that of superelasticity, we discuss here only for the former case. There is a consensus that both shape memory and superelasticity effects are characteristic of thermoelastic alloys [242][243][244][245][246][247]. 12 It is also observed in the early stage investigation that the deformation of martensite must be twinning in order for the shape memory effect to be realized, because slip is an irreversible process [241].…”

Section: Mechanism Of the Shape Memory Effectmentioning

confidence: 99%

Physical metallurgy of Ti–Ni-based shape memory alloys

Otsuka

Ren

2005

Progress in Materials Science

3,931

2,030

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Section: Mechanism Of the Shape Memory Effectmentioning

confidence: 99%

Physical metallurgy of Ti–Ni-based shape memory alloys

Otsuka

Ren

2005

Progress in Materials Science

3,931

2,030

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“…An approach of the type put forward here may have application to the modeling of the mechanical response of shape-memory alloys [21], to continuum descriptions of the effect of the presence of a "damaged phase" on the behavior of solids, and to transformation toughening in ceramic composites…”

Section: Introductionmentioning

confidence: 99%

On the dissipative response due to discontinuous strains in bars of unstable elastic material

Abeyaratne

Knowles

1988

International Journal of Solids and Structures

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“…61(c) and (e)) is the same as was ob served by Wasilewski [67] and explained (also not on the PAM basis) by Delaey et al [63]. The experimental results are displayed in Fig.…”

Section: Practical Consequences Of Transformation Strain Dependence Osupporting

confidence: 72%

“…Since the free energy of the austenite-martensite mixture depends both on the tempera ture and on the shear stress during transformation, their effects are combined even in the absence of applied stresses [63]. NiTi rod (annealed at 600°C for 1 hr), and he attributed this behavior to "the presence of significant texture and residual strains" [56].…”

Section: Zero Stress Transformationmentioning

confidence: 99%

The transformation strain dependence on applied stress in equiatomic nickel-titanium alloys of powder metallurgical origin

Ramon

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INFORMATION TO USERSThis reproduction was made from a copy of a document sent to us for microfilming. While the most advanced technology has been used to photograph and reproduce this document, the quality of the reproduction is heavily dependent upon the quality of the material submitted.The following explanation of techniques is provided to help clarify markings or notations which may appear on this reproduction. 1.The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure complete continuity.2. When an image on the film is obliterated with a round black mark, it is an indication of either blurred copy because of movement during exposure, duplicate copy, or copyrighted materials that should not have been filmed. For blurred pages, a good image of the page can be found in the adjacent frame. If copyrighted materials were deleted, a target note will appear listing the pages in the adjacent frame.3. When a map, drawing or chart, etc., is part of the material being photographed, a definite method of "sectioning" the material has been followed. It is customary to begin filming at the upper left hand comer of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued again-beginning below the first row and continuing on until complete. In all cases this material has been filmed in the best possible way from the available copy. Problems encountered with this document have been identified here with a check mark V . 1.Glossy Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy. (1) and (2) for the The tubular samples were cycled in temperature by circulating pre heated or precooled silicone oil through them. At the same time, they were held in grips, which permitted a deadweight axial stress to be applied. Rosette-type strain gages were used to measure axial, circum ferential, and 45°-inclined strains continuously as a function of temper ature. The strain-temperature hysteresis loops were analyzed for the dependence of their shape (including magnitude and direction of trans formation strain) on the type (tensile or compressive) and magnitude of the applied stress. Furthermore, the difference in behavior for Ni-Ti in the as-fabricated and annealed conditions was studied. In the absence of an applied stress, the strains upon transformation were nearly isotropic, and a net expansion took place upon transformation on cooling. By con trast, as the uniaxial tensile stress was increased, the axial and cir cumferential strains became increasingly different, i.e., the axial strain corresponded to an expansion upon transformation on cooling and the circumferential strain to a contraction. The magnitudes of these strains increased progressively with increasing...

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Thermoelasticity, pseudoelasticity and the memory effects associated with martensitic transformations

Cited by 362 publications

References 46 publications

Physical metallurgy of Ti–Ni-based shape memory alloys

Physical metallurgy of Ti–Ni-based shape memory alloys

On the dissipative response due to discontinuous strains in bars of unstable elastic material

The transformation strain dependence on applied stress in equiatomic nickel-titanium alloys of powder metallurgical origin

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