Kinetics of the diffusion saturation of VT1-0 titanium alloy with nitrogen and oxygen at a temperature of 950°C

We analytically describe the roles of nitrogen and oxygen as α-stabilizers in the formation of a three-layer diffusion zone (on the base of α-, (α + β) -, and β - phases) in VT1-0 titanium alloy. The constants of growth of these layers (at T = 950°C) are calculated, which enables us to predict the k...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2014-03, Vol.49 (5), p.688
Main Authors: Matychak, Ya.S, Fedirko, V.M, Pohrelyuk, I.M, Tkachuk, O.V
Format: Article
Language:English
Subjects:
Nitrogen
Specialty metals industry
Titanium
Titanium alloys
Online Access:Get full text
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Summary:We analytically describe the roles of nitrogen and oxygen as α-stabilizers in the formation of a three-layer diffusion zone (on the base of α-, (α + β) -, and β - phases) in VT1-0 titanium alloy. The constants of growth of these layers (at T = 950°C) are calculated, which enables us to predict the kinetics of changes in their thickness and the distribution of an interstitial elements (nitrogen or oxygen) in the diffusion zone. The evolution of microstructure of the surface layer of titanium after nitriding is experimentally recorded (after holding for 1 and 5 h).
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-014-9663-1