Naslov
Crystallization of Cu_50Ti_50 and Cu_66Ti_34 metallic glasses

Autori
Gržeta, Biserka ; Stubičar, Mirko ; Cowlam, Neil ; Trojko, Rudolf

Izvornik
Philosophical Magazine A - Physics of Condensed Matter Defects & Mechanical Properties (0141-8610) 55 (1987); 227-236

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Cu-Ti metallic glasses; crystallization behaviour; differential thermal analysis; X-.ray diffraction; microhardness

Sažetak
Detailed studies of the crystallization behaviour of the melt-spun Cu_50Ti_50 and Cu_66Ti_34 metallic glasses have been made by differential thermal analysis, X-ray diffraction and microhardness measurements. The samples were isochronally annealed from room temperature up to 1200 K. It was found that crystallization occurs at ~700 K for both glasses, and that for Cu_50Ti_50 this involves the appearance of tetragonal CuTi and Cu_4Ti_3 phases, while for Cu_66Ti_34 it involves the formation of the tetragonal Cu_3Ti_2 phase and orthorhombic Cu_2Ti and beta-Cu_3Ti phases. Crystallization products of both glasses showed strong preferred orientation, as evidenced by X-ray diffraction. The structural changes on annealing may be correlated with changes in the microhardness of the annealed samples.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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