Abstract
Using methods of electron-microscopy and x-ray structural analysis, we have investigated peculiarities of the evolution of the structural-phase state of an alloy of the system Ti–Al–V–Мо during formation of an ultrafine-grained structure by a method combining hot plastic deformation and reversible hydrogenation. It has been shown that the presence in solid solution of 0.15 wt% hydrogen makes it possible to lower by more than a factor of 2 the magnitude of the plastic deformation needed to obtain an ultrafine-grained state in the alloy. We found that during deformation and subsequent degassing of hydrogen from the alloy, such processes as the phase transformations α′′→β→α and β→α′′ and a redistribution of the doping elements take place, facilitating the formation of a lamellar morphology in the grains and preservation of a high level of strength properties of the ultrafine-grained structure.
| Original language | English |
|---|---|
| Pages (from-to) | 1330-1337 |
| Number of pages | 8 |
| Journal | Russian Physics Journal |
| Volume | 62 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Dec 2019 |
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Keywords
- hydrogen
- phase transformation
- titanium alloy
- ultrafine-grained structure
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Evolution of the Structural-Phase State of a Titanium Alloy of the System Ti–Al–V–Mo During Formation of an Ultrafine-Grained Structure Using Reversible Hydrogenaтion. / Grabovetskaya, G. P.; Zabudchenko, O. V.; Mishin, I. P.; Stepanova, E. N.; Ratochka, I. V.; Lykova, O. N.
In: Russian Physics Journal, Vol. 62, No. 8, 01.12.2019, p. 1330-1337.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Evolution of the Structural-Phase State of a Titanium Alloy of the System Ti–Al–V–Mo During Formation of an Ultrafine-Grained Structure Using Reversible Hydrogenaтion
AU - Grabovetskaya, G. P.
AU - Zabudchenko, O. V.
AU - Mishin, I. P.
AU - Stepanova, E. N.
AU - Ratochka, I. V.
AU - Lykova, O. N.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Using methods of electron-microscopy and x-ray structural analysis, we have investigated peculiarities of the evolution of the structural-phase state of an alloy of the system Ti–Al–V–Мо during formation of an ultrafine-grained structure by a method combining hot plastic deformation and reversible hydrogenation. It has been shown that the presence in solid solution of 0.15 wt% hydrogen makes it possible to lower by more than a factor of 2 the magnitude of the plastic deformation needed to obtain an ultrafine-grained state in the alloy. We found that during deformation and subsequent degassing of hydrogen from the alloy, such processes as the phase transformations α′′→β→α and β→α′′ and a redistribution of the doping elements take place, facilitating the formation of a lamellar morphology in the grains and preservation of a high level of strength properties of the ultrafine-grained structure.
AB - Using methods of electron-microscopy and x-ray structural analysis, we have investigated peculiarities of the evolution of the structural-phase state of an alloy of the system Ti–Al–V–Мо during formation of an ultrafine-grained structure by a method combining hot plastic deformation and reversible hydrogenation. It has been shown that the presence in solid solution of 0.15 wt% hydrogen makes it possible to lower by more than a factor of 2 the magnitude of the plastic deformation needed to obtain an ultrafine-grained state in the alloy. We found that during deformation and subsequent degassing of hydrogen from the alloy, such processes as the phase transformations α′′→β→α and β→α′′ and a redistribution of the doping elements take place, facilitating the formation of a lamellar morphology in the grains and preservation of a high level of strength properties of the ultrafine-grained structure.
KW - hydrogen
KW - phase transformation
KW - titanium alloy
KW - ultrafine-grained structure
UR - http://www.scopus.com/inward/record.url?scp=85075927548&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075927548&partnerID=8YFLogxK
U2 - 10.1007/s11182-019-01851-4
DO - 10.1007/s11182-019-01851-4
M3 - Article
AN - SCOPUS:85075927548
VL - 62
SP - 1330
EP - 1337
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 8
ER -