Training and stability of the intrinsic two-way shape memory effect in Ni-Ti alloys

The degradation of the discussed intrinsic TWSME can be divided into two stages. In the initial stage of thermal cycling a rather strong decay can be observed which is ascribed to the rearrangement of dislocations. In the latter stage the degradation is more gradual and the controlling mechanism is...

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Bibliographic Details
Published inScripta materialia Vol. 39; no. 2; pp. 205 - 212
Main Authors Scherngell, H., Kneissl, A.C.
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Ltd 12.06.1998
Elsevier Science
Subjects
Applied sciences
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Martensitic transformations
Materials science
Metals. Metallurgy
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Shape memory effects
Nickel base alloys
Binary alloys
Titanium alloys
Deformation
Shape memory alloy
Phase transformations
Martensitic transformations
Thermomechanical treatments
Experimental study
Stress-strain relations
Transition element alloys
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Summary:The degradation of the discussed intrinsic TWSME can be divided into two stages. In the initial stage of thermal cycling a rather strong decay can be observed which is ascribed to the rearrangement of dislocations. In the latter stage the degradation is more gradual and the controlling mechanism is thought to be the introduction of additional dislocations. Especially the degradation in the latter stage seems to be possible to control. By applying an appropriate thermal treatment a stability of the effect, suitable for technical application, can be achieved after cycling in the element.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6462
1872-8456
DOI:10.1016/S1359-6462(98)00155-9