Fartushna I. Phase equilibria in the ternary Ti-Dy-{Si, Sn, Al} systems and mechanical properties of alloys

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0412U005445

Thesis Registration Form

0412U005445.pdf

Applicant for

Fartushna Iuliia Viktorivna

Specialization

02.00.04 - Фізична хімія

Date of defense

08-06-2012

Specialized Academic Board

К 76.051.10

Yuriy Fedkovych Chernivtsi National University

Essay

Phase equilibria in the ternary Ti-Dy-{Si,Sn,Al} systems were studied. The new ternary compound in the Ti-Dy-Sn system was found for the first time, its crystal structure was determined. Polymorphic transformation of DyAl2 at ~1200°C was established. The diffusionless phase transformation I-st order in Tі3Sn intermetallic at about 75°C was established for the first time. Comparative analysis of Ті-R-p-element systems was carried. Intermetallic Tі3Sn with nonstochiometric composition has high plasticity at room temperature (15 % at bending, >60 % at compression) and extremely low Young modulus (5 GPa at 75°C).

Thesis supervisor

Bulanova Maryna Vadymivna

Official opponents

Туркевич Володимир Зіновійович
Казіміров Володимир Петрович

Files

aref.doc

dis.doc

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