Physical concepts of phase transformations in phase-memory alloys

Apaev, B. A.; Voronenko, B. I.

doi:10.1007/bf00663215

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…Most medical tools are made of corrosion-resistant steels and alloys. However, steels and alloys used at present for the manufacture of medical instruments do not fully satisfy the requirements for materials for these purposes [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The Study of Structure Formation Evolution at High Pressure with a Shear in a Corrosion-Resistant Austenitic-Ferritic Steel 03Kh14N10K5M2YuT with Different Initial States

Maltseva

Левина

Skobelina

2020

SSP

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The article presents results of studies of phase transformations and structure formation that form the necessary complex of physical and mechanical properties of austenitic-ferritic steel with a structural ratio of 50:50. The structure formation at high pressure with a shear of steel 03Kh14N10K5M2YuT with different initial states is studied. After the action of intense plastic deformations, a submicrocrystalline structure arises. This causes interest in these deformations.

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Section: Introductionmentioning

confidence: 99%

The Study of Structure Formation Evolution at High Pressure with a Shear in a Corrosion-Resistant Austenitic-Ferritic Steel 03Kh14N10K5M2YuT with Different Initial States

Maltseva

Левина

Skobelina

2020

SSP

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“…Данные авторов соответствуют представлениям, изложенным в работе [8], согласно которым на начальных этапах старения (1 - 3 ч при температурах ниже 773 К) железо-хромистых сплавов первыми начинают выделяться карбиды (карбонитриды) железа - сначала метастабильные в последовательности ε - χ - δ, а затем стабильные вплоть до Cr 23 C 6 .…”

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Application of ultrasonic resonance oscillations to estimate the size of phase inclusions in samples of chrome – iron alloys

Berestov

Kudryavtsev

Martynenko

et al. 2019

Izv. vysš. učebn. zaved., Čern. metall.

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During the implementation of strategic research program of the Technology Platform “Closed Nuclear Fuel Cycle with Fast Reactors”, hot cells are fitted with original non-standard equipment for primary post-reactor non-destructive studies of critical fast reactor materials. These materials include chrome-iron alloys, considered as promising for fuel rod cladding of fast neutron reactors. During the investigation via the ultrasonic spectroscopic method of internal friction of cylindrical samples from chrome-iron alloys in a narrow temperature range near 550 K at their cooling with rate of about 0.2 K/s, we have revealed an anomalous effect from the point of view of oscillations classical theory. Its peculiarity consists in the occurrence of coupled oscillations in samples with a nonuniform temperature distribution along the radius, in case the interval of temperature variation contains the point of the magnetic phase transition of the material. Such a sample can be considered as a complex oscillatory system consisting of peripheral (cooler) and central areas in different magnetic states, with a pulsating interface, on which mechanical stresses act. It was estimated that this anomalous mode of oscillations is associated with the influence of dynamic vibrational stresses on formation and magnetic phase transformations in carbonitride inclusions occurring during heat treatment of alloys. A theoretical description of this effect is proposed. It is shown that by registering the parameters of coupled oscillations, it is possible to estimate the sizes of the resulting phase inclusions. The discovered features and established regularities of resonance oscillations in combination with the traditional method of internal friction can be used to detect metastable phase inclusions occurring at intermediate stages of the material structure, and to estimate their sizes. It will undoubtedly be useful in the case of primary non-destructive tests in hot cells of heavily irradiated samples of these alloys when optimizing their composition for fuel rod claddings of fast neutron reactors.

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Ferroelasticity of materials with a mechanical shape memory

Bondarev¹,

Dudukalenko²

1979

J Appl Mech Tech Phys

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Physical concepts of phase transformations in phase-memory alloys

Cited by 3 publications

References 28 publications

The Study of Structure Formation Evolution at High Pressure with a Shear in a Corrosion-Resistant Austenitic-Ferritic Steel 03Kh14N10K5M2YuT with Different Initial States

The Study of Structure Formation Evolution at High Pressure with a Shear in a Corrosion-Resistant Austenitic-Ferritic Steel 03Kh14N10K5M2YuT with Different Initial States

Application of ultrasonic resonance oscillations to estimate the size of phase inclusions in samples of chrome – iron alloys

Ferroelasticity of materials with a mechanical shape memory

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