Calorimetry and Peculiarities of Reverse ω → α Phase Transformation in Zr and Ti Pseudo-Single Crystals

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Calorimetry and Peculiarities of Reverse ω → α Phase Transformation in Zr and Ti Pseudo-Single Crystals. / Egorova, L. Yu; Khlebnikova, Yu V.; Pilyugin, V. P.; Resnina, N. N.

в: Physics of Metals and Metallography, Том 123, № 5, 05.2022, стр. 482-488.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Egorova, L. Yu ; Khlebnikova, Yu V. ; Pilyugin, V. P. ; Resnina, N. N. / Calorimetry and Peculiarities of Reverse ω → α Phase Transformation in Zr and Ti Pseudo-Single Crystals. в: Physics of Metals and Metallography. 2022 ; Том 123, № 5. стр. 482-488.

BibTeX

@article{06fab066c2b94383a295dbbcd60c6c8a,

title = "Calorimetry and Peculiarities of Reverse ω → α Phase Transformation in Zr and Ti Pseudo-Single Crystals",

abstract = "Abstract: Differential scanning calorimetry, X-ray diffraction analysis, transmission electron microscopy, and microhardness measurements are used to study the reverse ω → α phase transformation in titanium and zirconium, which were subjected to deformation in a Bridgman chamber under close loading conditions in order to obtain additional data on the degree of stability of the studied metals. It was found that, despite the qualitative similarity of heat release processes that occurred in the metals under study, which are recorded by differential scanning calorimetry, the reverse phase transformation in titanium, in contrast to that in zirconium, is realized at lower temperatures and within narrower temperature range over the whole range of preliminary true strain. It was found that the characteristics, such as the temperature of the onset of reverse phase transformation and value of released thermal energy are stabilized on reaching the certain true strain (е ≈ 9), when the mixed nano- and submicrocrystalline structure forms in both the metals, in which deformation defects and extensive interfaces make the maximum energy contribution to the system.",

keywords = "differential scanning calorimetry, metastable ω phase, phase transformation, severe plastic deformation",

author = "Egorova, {L. Yu} and Khlebnikova, {Yu V.} and Pilyugin, {V. P.} and Resnina, {N. N.}",

note = "Publisher Copyright: {\textcopyright} 2022, Pleiades Publishing, Ltd.",

year = "2022",

month = may,

doi = "10.1134/s0031918x22050027",

language = "English",

volume = "123",

pages = "482--488",

journal = "Physics of Metals and Metallography",

issn = "0031-918X",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "5",

}

RIS

TY - JOUR

T1 - Calorimetry and Peculiarities of Reverse ω → α Phase Transformation in Zr and Ti Pseudo-Single Crystals

AU - Egorova, L. Yu

AU - Khlebnikova, Yu V.

AU - Pilyugin, V. P.

AU - Resnina, N. N.

PY - 2022/5

Y1 - 2022/5

N2 - Abstract: Differential scanning calorimetry, X-ray diffraction analysis, transmission electron microscopy, and microhardness measurements are used to study the reverse ω → α phase transformation in titanium and zirconium, which were subjected to deformation in a Bridgman chamber under close loading conditions in order to obtain additional data on the degree of stability of the studied metals. It was found that, despite the qualitative similarity of heat release processes that occurred in the metals under study, which are recorded by differential scanning calorimetry, the reverse phase transformation in titanium, in contrast to that in zirconium, is realized at lower temperatures and within narrower temperature range over the whole range of preliminary true strain. It was found that the characteristics, such as the temperature of the onset of reverse phase transformation and value of released thermal energy are stabilized on reaching the certain true strain (е ≈ 9), when the mixed nano- and submicrocrystalline structure forms in both the metals, in which deformation defects and extensive interfaces make the maximum energy contribution to the system.

AB - Abstract: Differential scanning calorimetry, X-ray diffraction analysis, transmission electron microscopy, and microhardness measurements are used to study the reverse ω → α phase transformation in titanium and zirconium, which were subjected to deformation in a Bridgman chamber under close loading conditions in order to obtain additional data on the degree of stability of the studied metals. It was found that, despite the qualitative similarity of heat release processes that occurred in the metals under study, which are recorded by differential scanning calorimetry, the reverse phase transformation in titanium, in contrast to that in zirconium, is realized at lower temperatures and within narrower temperature range over the whole range of preliminary true strain. It was found that the characteristics, such as the temperature of the onset of reverse phase transformation and value of released thermal energy are stabilized on reaching the certain true strain (е ≈ 9), when the mixed nano- and submicrocrystalline structure forms in both the metals, in which deformation defects and extensive interfaces make the maximum energy contribution to the system.

KW - differential scanning calorimetry

KW - metastable ω phase

KW - phase transformation

KW - severe plastic deformation

UR - http://www.scopus.com/inward/record.url?scp=85132243076&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/2899b172-9f44-34fb-bfa0-8930be5ac7f3/

U2 - 10.1134/s0031918x22050027

DO - 10.1134/s0031918x22050027

M3 - Article

AN - SCOPUS:85132243076

VL - 123

SP - 482

EP - 488

JO - Physics of Metals and Metallography

JF - Physics of Metals and Metallography

SN - 0031-918X

IS - 5

ER -

ID: 97287851