Abstract
Composite quaternary alloys with 21–22 vol.% of Al 3M (M = Ti,V,Zr) were made by vacuum arc melting. Two inlermetallic phases were found in alloys: one is V rich D0 22-Al 3(Ti,V,Zr) and the other is Zr rich D0 23-Al 3(Ti,V,Zr). Measured lattice constants of precipitate phases were strongly dependent on the composition of transition elements in precipitates and generally obeyed Vegard's rule. The lattice misfits between Al 3M phases and the matrix did not change much in alloys while the lattice misfit between D0 22 and D0 23 Al 3M phases was found to decrease with an increase in Ti content implying that the interface between both phases became more smooth, hard to distinguish and separate. A geometrical model was made for the lattice matching between two, D0 22 and D0 23 Al 3M phases. Titanium has been found to act as a retarding element to separation into D0 23 and D0 22 phases and the pre-existing phase may have been L 12 or D0 23 phase.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
