Crystallization process of Ni-base metallic glasses

• Autorzy: Poloczek T. , Griner S. , Nowosielski R.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper presents a crystallization process of Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 metallic glasses. The Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 metallic glasses were produced by the CBMS method for two different conditions of the casting, with different cooling rate. Design/methodology/approach: The crystallization of Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 metallic glasses by method differential thermal analysis (DTA), internal friction (IF), X-ray diffraction and transmission electron microscopy (TEM) were studied. For calculation of activation energy of crystallization processes was used modified Kissingers formula. Findings: The investigation showed, that the conditions of vitrification (different, but higher than critical cooling rate) influence for different course elementary crystallization processes during thermal activation. Research limitations/implications: The differences in temperature of beginning of elementary crystallization processes of alloy, the activation energy of crystallization process as a function of thickness of strip were disclosed. Practical implications: The calculation values of activation energy of crystallization processes can used for analysis of thermal stability of metallic glasses. Originality/value: The paper presents, that the conditions of vitrification influence for different course elementary crystallization processes during thermal activation.

Słowa kluczowe

EN

amorphous materials; crystallization of metallic glasses; internal frictions; activation energy

PL

materiały amorficzne; krystalizacja szkieł metalicznych; tarcie wewnętrzne; energia aktywacji

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 17, nr 1-2
• Strony: 133--136
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Poloczek T.

• Rostfrei-Stahl Geisweid GmbH, 57250 Netphen-Deuz, Weiherdamm 1, Germany

autor

Griner S.

• Division of Nanocrystalline and Functional Materials and Sustainable Pro-ecological Technologies, Institute of Engineering Materials and Biomaterials,Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Nowosielski R.

• Division of Nanocrystalline and Functional Materials and Sustainable Pro-ecological Technologies, Institute of Engineering Materials and Biomaterials,Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

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