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Monday, July 27, 2020 | History

1 edition of First Principles Modelling of Shape Memory Alloys found in the catalog.

First Principles Modelling of Shape Memory Alloys

Molecular Dynamics Simulations

by Oliver Kastner

  • 330 Want to read
  • 8 Currently reading

Published by Springer Berlin Heidelberg, Imprint: Springer in Berlin, Heidelberg .
Written in English

    Subjects:
  • Thermodynamics,
  • Numerical and Computational Physics,
  • Phase Transitions and Multiphase Systems,
  • Dynamical Systems and Complexity Statistical Physics,
  • Materials,
  • Metallic Materials,
  • Physics

  • Edition Notes

    Statementby Oliver Kastner
    SeriesSpringer Series in Materials Science -- 163
    ContributionsSpringerLink (Online service)
    Classifications
    LC ClassificationsQC173.45-173.458
    The Physical Object
    Format[electronic resource] :
    ID Numbers
    Open LibraryOL27038956M
    ISBN 109783642286193

    A shape-memory alloy is an alloy that can be deformed when cold but returns to its pre-deformed ("remembered") shape when heated. It may also be called memory metal, memory alloy, smart metal, smart alloy, or muscle wire. [citation needed]Parts made of shape-memory alloys can be lightweight, solid-state alternatives to conventional actuators such as hydraulic, pneumatic, and motor-based . shape memory alloys. First, by consisting in determining the transformations of equiatomic Ti–Ni shape memory alloys by differential scanning calorimeter. Then, in order to validate a 3D numerical model of the pseudoelastic behaviour of SMA allowing a finite strain analysis, a set of experimental tests at various initial temperatures is proposed.

      Ni–Mn–Ga alloys with more than one or two atomic per cent excess Ni are not technically interesting in terms of the magnetic shape memory effect, since in these alloys the twinning stress is quite large (>10 MPa) which hinders field-induced twin-boundary motion (although one has to note that in Ni Mn Ga a permanent strain of %. shape memory properties [2]. These alloys have limited temperature around K and thus have limited application area. Recent studies focus on the development of high-temperature shape memory alloys (HTSMAs) based on TiPd, TiAu, and TiPt [3].A lot of work has been done on TiPt recently to enhance their shape memory properties [4].It has.

    A first-principles calculation program is used for investigating the structural, mechanical, and electronic properties of the cubic NiTi shape-memory alloy (SMA) with the B2 phase under high pressure. Physical parameters including dimensionless ratio, elastic constants, Young’s modulus, bulk modulus, shear modulus, ductile-brittle transition, elastic anisotropy, and Poisson’s ratio are. The article was published as article 22 of the book Shape Memory Alloys References [1] A. A. Likhachev, A. Sozinov, K. Ullakko, Different modeling concepts of magnetic shape memory and their comparison with some experimental results obtained in Ni–Mn–Ga, Mater.


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First Principles Modelling of Shape Memory Alloys by Oliver Kastner Download PDF EPUB FB2

Employing conceptually simple but comprehensive models, the fundamental material properties of shape memory alloys are qualitatively explained from first principles. Using contemporary methods of molecular dynamics simulation experiments, it is shown how microscale dynamics may produce characteristic macroscopic material by: 5.

Employing conceptually simple but comprehensive models, the fundamental material properties of shape memory alloys are qualitatively explained from first principles. Using contemporary methods of molecular dynamics simulation experiments, it is shown how microscale dynamics may produce characteristic macroscopic material : Springer-Verlag Berlin Heidelberg.

This book provides a working knowledge of the modeling and applications of shape memory alloys (SMAs) to practicing engineers and graduate and advanced undergraduate students with an interest in the behavior and utility of active or multifunctional materials and "smart" structures.5/5(1).

Request PDF | On Jan 1,Oliver Kastner published First Principles Modelling of Shape Memory Alloys | Find, read and cite all the research you need on ResearchGateAuthor: Oliver Kastner.

First Principles Modelling of Shape Memory Alloys Kastner, Oliver ; Abstract. Publication: First Principles Modelling of Shape Memory Alloys: Molecular Dynamics Simulations Publication: First Principles Modelling of Shape Memory Alloys: Molecular Dynamics Simulations.

Pub Date: DOI: / Bibcode: First Principles Modelling of Shape Memory Alloys Molecular Dynamics Simulations by Oliver Kastner and Publisher Springer. Save up to 80% by choosing the eTextbook option for ISBN:The print version of this textbook is ISBN:  Fundamental understanding of the microscopic coupling governing these transition pathways is essential to design of improved NiTi-based shape memory alloys.

Several first-principles studies of NiTi, focused on accurate prediction of structural parameters of its low-temperature phases and their electronic and vibrational properties. The book consists of five parts. Part 1 deals with the mechanism of shape memory and the alloys that exhibit the effect.

It also defines many essential terms that will be used in later parts. Part 2 deals primarily with constrained recovery, but to some extent with free recovery. The one-way shape memory effect (OWSME) was first observed in a Gold–Cadmium alloy by Chang and Read () and in NiTi by Buehler et al.

().Later, Sato et al. () discovered the OWSME in FeMn30Si1 (wt.%) Fe-based alloy leading to the development of Fe64Mn30Si6 (wt%) SMA with perfect shape memory by Murakami et al. ().The OWSME manifests itself under.

In this chapter, a three-dimensional phenomenological constitutive model for the simulation of shape memory alloys is introduced. The proposed macromechanical model is based on microplane theory.

Microplane approach is chosen to have limited material parameters in that all of those are measurable by simple tests. Employing conceptually simple but comprehensive models, the fundamental material properties of shape memory alloys are qualitatively explained from first principles.

Using contemporary methods of molecular dynamics simulation experiments, it is shown how microscale dynamics may produce characteristic macroscopic material properties.

springer, Materials sciences relate the macroscopic properties of materials to their microscopic structure and postulate the need for holistic multiscale research. The investigation of shape memory alloys is a prime example in this regard.

This particular class of materials exhibits strong coupling of temperature, strain and stress, determined by solid state phase transformations of their. The book presents selected, peer reviewed papers from the 3rd International Conference on “Shape Memory Alloys” (SMA ). Covered are: Physical, mechanical and functional properties of shape memory alloys.

Structure and martensitic phase transformations. Theory and mathematical modelling. This book provides a working knowledge of the modeling and engineering applications of shape memory alloys (SMAs), beginning with a rigorous introduction to continuum mechanics and continuum thermodynamics as they relate to the development of SMA SMAs can recover from large amounts of bending and deformation, and millions of repetitions within recoverable s: 1.

First principles modelling of shape memory alloys. Berlin ; London: Springer, (OCoLC) Material Type: Internet resource: Document Type: Book, Internet Resource: All Authors / Contributors: Oliver Kastner.

III Magnetoelastic effects in Ni2Mn1+xGa1¡x alloys from first-principles calcula-tions Q. Hu, C. Li, S. Kulkova, R. Yang, B. Johansson, and L. Vitos, Phys. Rev. B 81, (). IV First-principles investigation of the composition dependent properties of Ni2+xM n1¡xGa shape-memory alloys. We have performed first-principles calculations to investigate the possibility of shape memory loss in a member of the binary smart alloy family – NiTi.

A detailed analysis of the transition kinetics and dynamical pathway reveals the possibility of the B19′ phase of NiTi losing its shape memory. Book Description This book focuses on the role of modeling in the design of alloys and intermetallic compounds.

It includes an introduction to the most important and most used modeling techniques, such as CALPHAD and ab-initio methods, as well as a section devoted to the latest developments in applications of alloys.

optimizing its shape memory behavior. The martensitic phase transformation in NiTi has been studied by a variety of modeling methods. The continuum models are usually focused on the crystallography and compatibility of the phase transformation and twin microstructure [6–8].

First-principles calculations are well suited to investigating the. First principles modelling of shape memory alloys: molecular dynamics simulations.

[Oliver Kastner] -- AnnotationThis volume reviews simulation studies that model shape memory alloys. The authors utilize contemporary methodology for molecular dynamics simulation experiments to.

Shape Memory Alloy Engineering introduces materials, mechanical, and aerospace engineers to shape memory alloys (SMAs), providing a unique perspective that combines fundamental theory with new approaches to design and modeling of actual SMAs as compact and inexpensive actuators for use in aerospace and other applications.

With this book readers will gain an understanding of the intrinsic.Ni-free Ti-based Shape Memory Alloys reviews the fundamental issues of biomedical beta-type Ti base shape memory and superelastic alloys, including martensitic transformation, shape memory and superelastic properties, alloy development, thermomechanical treatment and microstructure control, and biocompatibility.

Some unique properties, such as large nonlinear elastic behavior and low Young’s. The aim of this book is to understand and describe the martensitic phase transformation and the process of martensite platelet reorientation.

These two key elements enable the author to introduce the main features associated with the behavior of shape-memory alloys (SMAs), i.e.

the one-way shape-memory effect, pseudo-elasticity, training and.