Indicatory surface of anelastic-elastic properties of Ti alloys

The simultaneous influence of hydrogen H and ultrasound deformation on internal friction Q − 1 and dynamic elastic modulus E of intermetallic Ti 3 Al alloy after cutting and polishing were studied. The relaxation maximum of internal friction Q − 1 M1 at temperature Т М1 ≈ 398 К, conditioned by the m...

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Bibliographic Details
Published in:	Materials research express Vol. 10; no. 10; pp. 106511 - 106517
Main Authors:	Onanko, Anatoliy, Kuzmych, Lyudmyla, Onanko, Yurii, Kuzmych, Anna
Format:	Journal Article
Language:	English
Published:	Bristol IOP Publishing 01-10-2023
Subjects:	alloys anelastic-elastic properties Anelasticity dynamic elastic modulus Elastic deformation Elastic properties Friction Heat treatment Intermetallic compounds Internal friction Point defects Storage modulus structural defects Titanium aluminides Titanium base alloys
Online Access:	Get full text
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Summary:	The simultaneous influence of hydrogen H and ultrasound deformation on internal friction Q − 1 and dynamic elastic modulus E of intermetallic Ti 3 Al alloy after cutting and polishing were studied. The relaxation maximum of internal friction Q − 1 M1 at temperature Т М1 ≈ 398 К, conditioned by the mechanism caused by reorientation interstitial atoms in dumbbell configurations H-H was discovered. Internal friction maximum Q − 1 M2 in intermetallic Ti 3 Al at temperature T M2 ≈ 439 K was discovered with an activation energy H 2 = 0.86±0.1 eV. 2D and 3D atomic force microscopy microstructure images of Ti (VT8) alloy after mechanical and thermal treatment are presented. Strengthening of Ti alloys is related to the cooperation of dislocations with point defects.
Bibliography:	MRX-127806.R1
ISSN:	2053-1591 2053-1591
DOI:	10.1088/2053-1591/acfecc