Publication: Quantifying the properties of low-cost powder metallurgy titanium alloys
Loading...
Identifiers
Publication date
2017-02-27
Defense date
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
ELSEVIER BV
Impact
Export
Abstract
The extensive industrial employment of titanium is hindered by its high production costs where
reduction of these costs can be achieved using cheap alloying elements and appropriate
alternative processing techniques. In this work the feasibility of the production of low-cost
titanium alloys is addressed by adding steel to pure titanium and processing the alloys by powder
metallurgy. In particular, a spherical 4140 LCH steel powder commonly used in metal injection
moulding is blended with irregular hydride-dehydride Ti. The new low-cost alloys are cold
uniaxially pressed and sintered under high vacuum and show comparable properties to other
wrought-equivalent and powder metallurgy titanium alloys. Differential thermal analysis and Xray diffraction analyses confirm that Ti can tolerate the employment of iron as primary alloying
element without forming detrimental TiFe-based intermetallic phases. Thus, the newly designed
α+β alloys could be used for cheaper non-critical components.
Description
Keywords
Titanium alloys, Powder metallurgy, Electron microscopy, Mechanical properties, X-ray diffraction, Ti-fe alloys, Mechanical-properties, Tensile properties, Ti-6al-4v, Diffusion, Behavior, Iron
Bibliographic citation
Bolzoni, L., Ruiz-Navas, E. M., & Gordo, E. (2017). Quantifying the properties of low-cost powder metallurgy titanium alloys. In Materials Science and Engineering: A, 687, 47–53