X-ray diffraction studies of rapid cooled Al-V and Al-Fe-V alloys

• Autorzy: Shved O. , Mudry S. , Girzhon V. , Smolyakov O.

Identyfikatory

DOI

10.5604/01.3001.0013.7931

• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper is to deep and more complete knowledge about the features of phase and structure formation in Al-based alloys with transition metals (TM) Fe and V at rapid cooling from melt. It is known, that nonequilibrium synthesis conditions of such alloys lead to quasicrystalline, amorphous or metastable phases formation, which can significantly improve the physical-chemical properties and first of all the mechanical ones. But understanding of compositional dependences of structure features at formation under nonequilibrium conditions and the correlation of these dependences with physical properties of alloys is far to be clear. Design/methodology/approach: Structure of Al-enriched Al-V, Al-V-Fe rapid cooled alloys was studied by X-ray diffraction method. In order to estimate the influence of structural state of alloy on the mechanical properties the integral microhardness was studied by Vickers method. Findings: Two quasicrystalline icosaedral phases with different cell parameters are revealed in ternary alloys Al100-3xV2xFex (x=2-4). Increasing of transition metal content promotes the formation of phase with higher quasicell parameter embedded in amorphous matrix. With increasing of the transition elements total content from 6 up to 12 at. % the microhardness of alloys increased gradually from 867 to 3050 MPa. Research limitations/implications: Research of nonequilibrium alloys revealed crystalline structure of Al-V alloys and quasicrystalline embedded in amorphous matrix of Al-Fe-V ternary alloys. Obtained results suppose that further structure and physical properties studies of Al-Fe-V alloys will allows to find the conditions to control the producing of materials with desired properties. Practical implications: Using of rapid cooling method for synthesis of Al-enriched Al-Fe-V alloys give an opportunity to produce alloys with significantly improved mechanical properties. Originality/value: Nonequilibrium conditions of cooling allow significantly changes the structure and properties.

Słowa kluczowe

EN

Al-based alloys; quasicrystals; rapid cooling; microhardness

PL

stopy na bazie Al; kwazikryształy; przyspieszone chłodzenie; mikrotwardość

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2019
• Tom: Vol. 96, nr 1
• Strony: 5--11
• Opis fizyczny: Bibliogr. 22 poz., tab., wykr.

Twórcy

autor

Shved O.

• Physics of Metals Department, I. Franko Lviv National University, Kyrylo and Mephodiy str. 8, 79005 Lviv, Ukraine

autor

Mudry S.

• Physics of Metals Department, I. Franko Lviv National University, Kyrylo and Mephodiy str. 8, 79005 Lviv, Ukraine

autor

Girzhon V.

• Physics of Metals Department, Zaporizhzhia National University, Zhukovsky str. 66, 69063 Zaporizhzhia, Ukraine

autor

Smolyakov O.

• Physics of Metals Department, Zaporizhzhia National University, Zhukovsky str. 66, 69063 Zaporizhzhia, Ukraine

Bibliografia

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