Abstract
The formation of martensitic α′ and α′′ phases in Ti-6Al-4V titanium alloy subjected to low energy high current pulsed electron beam (LEHCPEB)treatment with an energy density of 12–25 J/cm 2 was revealed by X-ray diffraction and transmission electron microscopy. It was substantiated that the strain-induced phase transformation is the dominant mechanism underlying the deformation behavior of the melted surface layer of the titanium alloy samples during nanoindentation and scratch testing. It was found that the reverse transformation of the α′′ phase into the more close-packed α phase is responsible for the softening of the uppermost surface layer of the samples subjected to LEHCPEB treatment. The development of the direct and reverse α′′→α→α′′ martensitic transformations in the uppermost surface layer resulted in the improvement in elastic recovery of the treated Ti-6Al-4V samples after scratching.
| Original language | English |
|---|---|
| Pages (from-to) | 275-283 |
| Number of pages | 9 |
| Journal | Journal of Alloys and Compounds |
| Volume | 795 |
| DOIs | |
| Publication status | Published - 30 Jul 2019 |
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Keywords
- LEHCPEB treatment
- Martensite transformations
- Nanoindentation
- Scratch test
- TEM
- Titanium alloy
- X-ray
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
The effect of phase transformations on the recovery of pulsed electron beam irradiated Ti-6Al-4V titanium alloy during scratching. / Sinyakova, E. A.; Panin, A. V.; Perevalova, O. B.; Shugurov, A. R.; Kalashnikov, M. P.; Teresov, D.
In: Journal of Alloys and Compounds, Vol. 795, 30.07.2019, p. 275-283.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effect of phase transformations on the recovery of pulsed electron beam irradiated Ti-6Al-4V titanium alloy during scratching
AU - Sinyakova, E. A.
AU - Panin, A. V.
AU - Perevalova, O. B.
AU - Shugurov, A. R.
AU - Kalashnikov, M. P.
AU - Teresov, D.
PY - 2019/7/30
Y1 - 2019/7/30
N2 - The formation of martensitic α′ and α′′ phases in Ti-6Al-4V titanium alloy subjected to low energy high current pulsed electron beam (LEHCPEB)treatment with an energy density of 12–25 J/cm 2 was revealed by X-ray diffraction and transmission electron microscopy. It was substantiated that the strain-induced phase transformation is the dominant mechanism underlying the deformation behavior of the melted surface layer of the titanium alloy samples during nanoindentation and scratch testing. It was found that the reverse transformation of the α′′ phase into the more close-packed α phase is responsible for the softening of the uppermost surface layer of the samples subjected to LEHCPEB treatment. The development of the direct and reverse α′′→α→α′′ martensitic transformations in the uppermost surface layer resulted in the improvement in elastic recovery of the treated Ti-6Al-4V samples after scratching.
AB - The formation of martensitic α′ and α′′ phases in Ti-6Al-4V titanium alloy subjected to low energy high current pulsed electron beam (LEHCPEB)treatment with an energy density of 12–25 J/cm 2 was revealed by X-ray diffraction and transmission electron microscopy. It was substantiated that the strain-induced phase transformation is the dominant mechanism underlying the deformation behavior of the melted surface layer of the titanium alloy samples during nanoindentation and scratch testing. It was found that the reverse transformation of the α′′ phase into the more close-packed α phase is responsible for the softening of the uppermost surface layer of the samples subjected to LEHCPEB treatment. The development of the direct and reverse α′′→α→α′′ martensitic transformations in the uppermost surface layer resulted in the improvement in elastic recovery of the treated Ti-6Al-4V samples after scratching.
KW - LEHCPEB treatment
KW - Martensite transformations
KW - Nanoindentation
KW - Scratch test
KW - TEM
KW - Titanium alloy
KW - X-ray
UR - http://www.scopus.com/inward/record.url?scp=85065199406&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85065199406&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.04.320
DO - 10.1016/j.jallcom.2019.04.320
M3 - Article
VL - 795
SP - 275
EP - 283
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -