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Composition dependence of the structure and properties of as-cast Ti-Cr-Co alloys for biomedical applications (CROSBI ID 194285)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Matković, Tanja ; Slokar, Ljerka ; Matković, Prosper Composition dependence of the structure and properties of as-cast Ti-Cr-Co alloys for biomedical applications // Kovové materiály, 51 (2013), 4; 229-234

Podaci o odgovornosti

Matković, Tanja ; Slokar, Ljerka ; Matković, Prosper

engleski

Composition dependence of the structure and properties of as-cast Ti-Cr-Co alloys for biomedical applications

The examination of a series of as-cast Ti-Cr-Co alloys was performed with the purpose of obtaining new β-type Ti-alloys. Experimental results revealed that the alloys containing 10- 20 atomic percent Cr and 5 atomic percent Co were single β- phase alloys. They displayed the hardness values in the order of 359 to 423 HV, high compressive strength (1620-1990 MPa), high yield strength (1050-1190 MPa) and low elastic modulus (47-72 GPa), which all increased with an increase in the chromium content. The β-phase alloys showed very high plastic strain which reduced from 79 to 64 percent with an increase in the chromium content. All experimental alloys revealed very good corrosion resistance, according to the Epit values (1200-1300 mV), which was not significantly influenced by the chemical composition of alloys. On the basis of the best combination of high strength, low elastic modulus and high plasticity, the new Ti85Cr10Co5 and Ti80Cr15Co5 β-type Ti- alloys showed the potential for biomedical applications.

Ti-Cr-Co alloys ; β-alloys ; structure ; mechanical properties ; corrosion resistance

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Podaci o izdanju

51 (4)

2013.

229-234

objavljeno

0023-432X

1338-4252

Povezanost rada

Metalurgija

Poveznice
Indeksiranost