System Ni-Ti. Crystallogeometrical features

Klopotov, A. A.; Yasenchuk, Yu. F.; Abzaev, Yu. A.; Dement’eva, M. G.; Kozlov, E. V.; Potekaev, A. I.; Solonitsyna, N. O.

doi:10.1007/s11182-008-9042-1

Cited by 8 publications

(12 citation statements)

References 4 publications

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“…Binary systems Cu−Pd and Cu−Au have a wide range of superstructures L12, L12(M), L12(MM), L10, and B2 ( Fig. 1) which are formed as a result of the combined phase transition orderdisorder and structural-phase transformations [3,4]. The selected for the research Cu-based systems have as a second forming alloy elements which are neighbors to copper in the periodic table.…”

Section: Figure 2 the Darken-gury Diagram For Components Dissolved Imentioning

confidence: 99%

“…Elements which are located in the area between two ellipses with the center of the Cu atom in the Darken-Gury diagram, according to Hume-Rothery rules, may have limited solubility in Cu. In fact, in systems Cu-Me (Me= Cu, Au, Pt, Pd) there is an unlimited solubility in Cu at high temperatures, and with a decrease in the temperature the ordered phases are formed from disordered solid solutions as a result of phase transitions order-disorder [2][3][4].…”

Section: The Darken-gurry Diagrammentioning

confidence: 99%

“…Two peritectoid equilibriums [7] with formation of one-dimensional and two-dimensional long-period superstructures L1 2 (M) and L1 2 (MM) are found. In the region of the composition Cu-40 at.% Pd at temperatures of ~ 600°C the superstructure B2 is formed from a disordered solid solution based on the FCC lattice as a result of the structural phase transition, which is accompanied by a phase transition order-disorder [3,4]. A great attention to the study of ordered structures in alloys of the system Cu-Pd is paid in [4,9,10].…”

Section: State Diagrams Of Systems Cu-me (Me= Rh Au Ni Pd Pt)mentioning

confidence: 99%

“…In the region of the composition Cu-40 at.% Pd at temperatures of ~ 600°C the superstructure B2 is formed from a disordered solid solution based on the FCC lattice as a result of the structural phase transition, which is accompanied by a phase transition order-disorder [3,4]. A great attention to the study of ordered structures in alloys of the system Cu-Pd is paid in [4,9,10]. An important feature of structural-phase states in binary alloys Cu-Pd in the range of the composition 40 at.% Pd is the presence of well-defined pre-transition states preceding the structural phase transition B2-A1 and accompanied by a phase transition order-disorder [4,11].…”

Section: State Diagrams Of Systems Cu-me (Me= Rh Au Ni Pd Pt)mentioning

confidence: 99%

“…A great attention to the study of ordered structures in alloys of the system Cu-Pd is paid in [4,9,10]. An important feature of structural-phase states in binary alloys Cu-Pd in the range of the composition 40 at.% Pd is the presence of well-defined pre-transition states preceding the structural phase transition B2-A1 and accompanied by a phase transition order-disorder [4,11].…”

Section: State Diagrams Of Systems Cu-me (Me= Rh Au Ni Pd Pt)mentioning

confidence: 99%

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Copper-based alloys, crystallographic and crystallochemical parameters of alloys in binary systems Cu-Me (Me=Co, Rh, Ir, Cu, Ag, Au, Ni, Pd, Pt)

Porobova

Markova

Klopotov

et al. 2016

AIP Conference Proceedings

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Abstract. The article presents the results of the analysis of phase equilibrium of ordered phases in binary systems based on copper Cu-Me (where Me -Co, Rh, Ir, Ag, Au, Ni, Pd, Pt) to find correlations of crystallochemical and crystallographic factors. It is established that the packing index in disordered solid solutions in binary systems based on copper is close to the value of 0.74 against the background of an insignificant deviation of atomic volumes from the Zen's law.

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Section: Figure 2 the Darken-gury Diagram For Components Dissolved Imentioning

confidence: 99%

Section: The Darken-gurry Diagrammentioning

confidence: 99%

Section: State Diagrams Of Systems Cu-me (Me= Rh Au Ni Pd Pt)mentioning

confidence: 99%

Section: State Diagrams Of Systems Cu-me (Me= Rh Au Ni Pd Pt)mentioning

confidence: 99%

Section: State Diagrams Of Systems Cu-me (Me= Rh Au Ni Pd Pt)mentioning

confidence: 99%

See 3 more Smart Citations

Copper-based alloys, crystallographic and crystallochemical parameters of alloys in binary systems Cu-Me (Me=Co, Rh, Ir, Cu, Ag, Au, Ni, Pd, Pt)

Porobova

Markova

Klopotov

et al. 2016

AIP Conference Proceedings

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Asymmetry of temperature dependences of electrical resistivity under B2–B19′ and B2–R–B19′ martensitic transformations in TiNi-alloys

Guenther¹,

Potekaev

Клопотов

et al. 2011

Russ Phys J

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The temperature dependences of electrical resistivity through the region of martensitic transformations in the alloys based on titanium nickelide are shown to exhibit pronounced asymmetry under conditions of direct and reverse transformations. It is assumed that this behavior is due to different character of temperature dependences of electrical resistivity in the austenite and martensite phases, which provide an explanation for this marked asymmetry.Phase transitions in the alloys based on titanium nickelide cover a wide range of martensitic transformations such as: В2-В19, В2-В19′, В2-R-B19′, B2-B19′′, etc. [1-21]. One of the most useful, reliable and informative methods of determining the temperature intervals and sequences of thermoelastic martensitic transformations (MTs) in the TiNialloys is the method of obtaining the temperature dependences of electrical resistivity. It should be noted that there are a number of phenomena accompanying MTs, which complicate calculation of the characteristic transformation temperatures in these alloys. They manifest themselves in the asymmetry of variations in the temperature dependences of electrical resistivity ρ(t) during the direct B2→R→B19′ and reverse B19′→R→B2 martensitic transformations (Fig. 1).The MT temperatures in these alloys are measured by a number of different methods that, presumably, should give similar results. In fact, the MT temperatures obtained by different methods are different [2,5]. Among the techniques frequently used are the calorimetric measurements and the measurements of electrical resistivity. These are often employed to determine the MT temperature intervals and sequences [2,6,7]. Moreover, there are singularities in the temperature dependences, which considerably complicate the derivation of the characteristic temperatures of the reverse MT in the alloys in question. These singularities are associated with the fact that MTs are accompanied by the processes differing in their nature, which are manifested in different temperature intervals in the course of rearrangement of the crystal lattice. The fact that an MT is a complicated sequence of different processes is well exhibited during thermal cycling through the MT region; this gives rise to evolution of the curves of electrical resistivity (Fig. 1). In particular, in the Ti(Ni, Mo, V) alloys with a low content of vanadium, the dependences ρ(t) indicate only the B2→ B19′ MT. Thermal cycling, on the other hand, results in a more complicated sequence of MTs: B2→R→B19′, which is clearly observed in the temperature dependences of electical resistivity presented in Fig. 1. In addition, the character of electrical resistivity changes also varies with concentration of the components, with a strong variation of the dependences ρ(t) with the number of the thermal cycles through the MT region. Earlier it was shown [1,2,[6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]

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Metal-Glass-Ceramic Phases on the Surface of Porous TiNi-Based SHS-Material for Carriers of Cells

et al. 2018

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System Ni-Ti. Crystallogeometrical features

Cited by 8 publications

References 4 publications

Copper-based alloys, crystallographic and crystallochemical parameters of alloys in binary systems Cu-Me (Me=Co, Rh, Ir, Cu, Ag, Au, Ni, Pd, Pt)

Copper-based alloys, crystallographic and crystallochemical parameters of alloys in binary systems Cu-Me (Me=Co, Rh, Ir, Cu, Ag, Au, Ni, Pd, Pt)

Asymmetry of temperature dependences of electrical resistivity under B2–B19′ and B2–R–B19′ martensitic transformations in TiNi-alloys

Metal-Glass-Ceramic Phases on the Surface of Porous TiNi-Based SHS-Material for Carriers of Cells

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