Kinetics of high-temperature interaction of titanium alloys with a carbon-containing gaseous medium
Date
2018-01-29
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Abstract
Due to their excellent complex of physical, chemical, and mechanical properties,
titanium alloys are unique materials for many branches of industry. An important feature of titanium
is its high reactivity concerning the interstitial chemical elements (oxygen, nitrogen, and carbon).
The absorption of interstitial elements by titanium alloys causes change in physical and mechanical
properties of alloys and articles which are made of them. It should be noted that the titanium alloys
are classified, in particular, by the compositions of their structures. Investigations of titanium alloys
of different structural compositions will enable us to take into account the influence of their features
on the kinetics of their interaction with interstitial elements.
Results of experimental investigations of the influence of a carbon-containing gaseous
medium on the kinetics of interaction of titanium alloys of different structural classes (α-, pseudo-α,
and (α+β)) are presented in this paper. It is established that the interaction at high temperatures
(T = 750–850 °C) of titanium alloys with rarefied carbon-containing gaseous medium
(Ar+16.7 % C3H8) under a pressure of P = 0.116 Pa leads to the increase in mass of the specimens
according to a law which is close to linear dependence on time.
Description
Keywords
titanium alloy, reactivity, absorption, structural composition, kinetics, interstitial element, gaseous medium, specimen
Citation
Trush V. Kinetics of high-temperature interaction of titanium alloys with a carbon-containing gaseous medium / Vasyl Trush, Alexander Luk’yanenko // Ukrainian Journal of Mechanical Engineering and Materials Science. — Lviv : Lviv Politechnic Publishing House, 2018. — Vol 4. — No 1. — P. 29–39.