Application of short-wave diffraction of synchrotron radiation for X-ray diffraction study of the structural features and phase transitions during hydrogenation of titanium Ti-6Al-4V alloy additively produced by the method of electron beam melting
- Dr. Viktor KUDIIAROV
- Dr. Viktor KUDIIAROV (Tomsk Polytechnic University)
Additive manufacturing of titanium alloys is an advance and intensively developing field of modern material science due to the wide application of titanium alloys in various industries. One of the important and interesting aspects of the study of additive materials is the establishment of regularities in the interaction of hydrogen with titanium alloys produced by the method of electron beam melting (EBM). On the one hand, this is due to the fact that EBM is considered as the main method of manufacturing titanium alloys for aircraft building, engine building and rocket construction; on the other hand, hydrogen treatment of additively produced titanium alloys, under certain conditions, can improve the physical and mechanical properties of products. In this connection, it is important to study the structural features and phase transitions during hydrogenation of titanium alloys produced by the method of electron beam melting. In the present work, hydrogen sorption by titanium Ti-6Al-4V alloy produced by the EBM method was investigated as well as structural-phase transformations in the alloy during hydrogenation was studied with the help of in-situ X-ray diffraction. The joint application of the X-ray diffraction method and hydrogenation from the gas-atmosphere made it possible in one experiment to determine the relationship between the phase composition of the alloy and its sorption properties, and thereby broaden the understanding of the mechanisms of interaction of hydrogen with titanium alloys produced by additive technology. Previously, this approach was used only to study the interaction of hydrogen with titanium and zirconium alloys manufactured by traditional methods [1-2].
This research was funded by Russian Science Foundation, research project No. 17-79-20100. The authors thank Tomsk Polytechnic University Competitiveness Enhancement Program.
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