Glass forming ability of binary Ni60+xNb40-x (x=0;1;2) alloys

• Autorzy: Nowosielski R. , Januszka A. , Pilarczyk W.
• Języki publikacji: EN

Abstrakty

EN

Purpose: This paper presents the investigations results of fabrication and structure tests binary Ni-Nb metallic glasses. Design/methodology/approach: The studies were performed on Ni60+xNb40-x (x=0, 1, 2) alloys in form of ribbon and rods up to 2 mm. For the purpose of fabrication test pieces, melt spinning and pressure die casting methods were used. The main index for determine glass forming ability was thickness of specimens. To the tests of samples structure X-ray diffraction phase analysis (XRD) and scanning electron microscopy (SEM) were used. Owing to good mechanical properties of Ni-based metallic glasses, microhardness of cast rods were examined. Findings: X-ray diffraction and SEM analysis have revealed that samples in form of ribbons were amorphous, while cast rods were crystalline. Practical implications: The relationship between amorphous structure and good mechanical properties could be promising for many engineering application. The Ni-based bulk metallic glasses are newcomers engineering materials which may be applied to a new type pressure sensor exhibiting higher capability and higher sensitivity Originality/value: Paper present quite new type of binary metallic glasses based on Ni. For the sake of alloy simplicity it is possible that this alloys will be used in many applications.

Słowa kluczowe

EN

metallic glass; bulk metallic glasses; mechanical properties; glass forming ability; die casting

PL

szkła metaliczne; właściwości mechaniczne; formowalność szkła; odlewanie matryc

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2010
• Tom: Vol. 42, nr 1-2
• Strony: 73--80
• Opis fizyczny: Bibliogr. 15 poz., rys., tabl.

Twórcy

autor

Nowosielski R.

autor

Januszka A.

autor

Pilarczyk W.

• 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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