The Influence of Chemical-Thermal Treatment on Granulometric Characteristics of Titanium Sponge Powder
Journal Title: Український журнал із машинобудування і матеріалознавства - Year 2017, Vol 3, Issue 1
Abstract
The phase composition and structure of powders of titanium sponge exposed to processes of chemical and thermal processing is investigated. As a result of X-ray analysis, it is found that after hydrogenation titanium powder consists of TiH2±х phase, while with the increase in the degree of phase dehydrogenation the percentage of TiH2±х decreases, and under perfect the dehydrogenation the structure consists mainly of α-Ti. Particle size analysis revealed that the partially dehydrated powders have the least degree of polydispersity. It is established that by means of regulation of technological regimes of hydrogenationdehydrogenation the two-phase structure with different ratios of α-phase to TiH2±х can be synthesized. It is shown that the presence of titanium hydride contributes to stabilization of the structure of formed powders.
Authors and Affiliations
Zoya Duriagina, Andriy Trostyanchyn, Ihor Lemishka, Oleksandr Ovchinnikov
Keywords
Related Articles
- EP ID EP248619
- DOI -
- Views 113
- Downloads 0
Evaluation of the permissible moment in a roller cone drill bit providing the prescribed reliability of work
After analyzing the nature of the damage of surfaces was discovered the traces of the compression effect which arise along the cutters axis when squeezing it into the rock of delve. There were also founded the traces of...
Study of Surface Microstrains by Electron Speckle-Interferometry Methods
Despite the fact that speckle interferometry methods began to develop more than 30 years ago, they still remain a rather exotic laboratory tool that has not received wide practical application in tensometry measurements...
The Influence of Chemical-Thermal Treatment on Granulometric Characteristics of Titanium Sponge Powder
The phase composition and structure of powders of titanium sponge exposed to processes of chemical and thermal processing is investigated. As a result of X-ray analysis, it is found that after hydrogenation titanium powd...
Propagation of Plane Elastic-Tough-Plastic Waves in the Material with Yield Delay
The use of electromechanical model of ideal elastic-tough-plastic material with yield delay while investigating the propagation of plane one-dimensional waves is being considered. The materials being investigated possess...
Propagation of Elastic-Tough-Plastic Wave in a Rod of Ideally Plastic Material which Possesses the Property of Yield Delay
The great number of theoretical and experimental investigations indicate that it is necessary to consider plastic deformation of metals as a process which proceeds in certain time interval. However, in such approaches, c...