The effect of stress on soft modes for the phase transformation in a Ti-Ni alloy I. The stress-induced transformation and soft modes

Li, D. Y.; Wu, Xuesong; Ko, T.

doi:10.1080/01418619108213901

Cited by 25 publications

(4 citation statements)

References 5 publications

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“…The TOEC's values differ up to about 50% from the values reported by Gonzales-Comas and Manosa [2] for a similar alloy (A = 13.1) at temperature T = 293K. Nevertheless, the measured values of TOECs fulfil the conditions C ijk < 0 and C 1 1 1 < C 1 1 2 < C 1 2 3 arising from the atomic binding force relation [4]. The qT a -modes numbers (8 and 2) are the most sensitive ones to the applied stress (Fig.…”

Section: Elastic Constantssupporting

confidence: 39%

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Acoustic characterization of the elastic properties of austenite phase and martensitic transformations in CuAlNi shape memory alloy

Černoch

Landa

Novák

et al. 2004

Journal of Alloys and Compounds

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Section: Elastic Constantssupporting

confidence: 39%

“…The partial unloads in mode number(4) indicate that the unusual hysteresis occurs also at very low stresses.…”

mentioning

confidence: 97%

Acoustic characterization of the elastic properties of austenite phase and martensitic transformations in CuAlNi shape memory alloy

Černoch

Landa

Novák

et al. 2004

Journal of Alloys and Compounds

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“…Thus the tensile test may not provide accurate information about the pseudoelastic response in a wear situation. In addition, the martensite transformation could show different responses to tensile stress and compressive stress, respectively [30]. Allowing for the fact that during the wear process the contact stress is complex, a micro-indentation technique was employed to evaluate the pseudoelasticity [26].…”

Section: Pseudoelasticitymentioning

confidence: 99%

Exploration of TiNi shape memory alloy for potential application in a new area: tribological engineering

Li¹

2000

Smart Mater. Struct.

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TiNi alloy is a well known shape memory alloy and has been widely used for bio-medical, mechanical and electrical applications. Recent research has demonstrated that TiNi alloy exhibits high resistance to wear and can be a superior tribo-material. Performance of this alloy benefits from its pseudoelasticity, resulting from a reversible martensitic transformation. Extensive research has been conducted at the University of Alberta to investigate wear behavior of TiNi alloy during various wear processes, including erosion, corrosive erosion, sliding wear and microscopic wear. The mechanism responsible for high wear resistance of TiNi alloy has been clarified to some degree and new phenomena are being continuously discovered. In particular, efforts have been made to develop tribo-composites using TiNi alloy as the matrix, reinforced by hard ceramic particles, including nano-structured particles. The composites obtained possess considerably enhanced wear resistance. This paper briefly reports progress in our studies on the development of this novel tribo-material.

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“…Therefore, the type of dependence of interatomic interaction energy }) ({ j P r E  on vectors j r  defining the arrangement of atoms and phenomenological parameters }) ({ j P r E  is always postulated through the comparison of calculation results and experimentally defined crystal characteristics. A variety of literature sources refer to dozens of different types of semi-empirical potentials of interatomic interactions (EP models) considering pair, triatomic and tetratomic interactions [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Symmetry Of Irreducible Cluster Energy And The Theory Of Elastic Constant Crystals: Co as an Example

Gufan¹,

Naskalova²,

Kukin³

et al. 2018

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)

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paper proposes a new method of transferable calculation of elastic constants of the second, third and fourth orders. The method is based on the assumption that the potential energy of bulk crystals may be presented as the decomposition into irreducible energies of two, three, and four atomic clusters. To justify this decomposition, we proved that the irreducible energy of atomic clusters obeys additional symmetry O3×NCl, which depends on the number of atoms constituting clusters (NCl), and not depends on cluster structure. Additional symmetry allows defining the bases invariants, which depend on interatomic distances, and irreducible energies of clusters are depended on bases invariants only. In turn, these dependences made it possible to calculate the elastic modulus of complexes that exist in different crystal modifications as functions of the same phenomenological parameters of the model of interatomic interactions. Then we presented an example of the calculation of elastic constants BCC, HCP and FCC of the metal phases of Co polymorphs. The results confirm that the proposed method is transferable and makes it possible to calculate the elastic moduli of the second, third and fourth orders with the accuracy not worse than was achieved using the quantum chemistry models.

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The effect of stress on soft modes for the phase transformation in a Ti-Ni alloy I. The stress-induced transformation and soft modes

Cited by 25 publications

References 5 publications

Acoustic characterization of the elastic properties of austenite phase and martensitic transformations in CuAlNi shape memory alloy

Acoustic characterization of the elastic properties of austenite phase and martensitic transformations in CuAlNi shape memory alloy

Exploration of TiNi shape memory alloy for potential application in a new area: tribological engineering

Symmetry Of Irreducible Cluster Energy And The Theory Of Elastic Constant Crystals: Co as an Example

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