Structural changes of Ni-base metallic glasses during thermal activation

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

Abstrakty

EN

Purpose: The paper presents a crystallization process of i68.7Cr6.6Fe2.65Si7.8B14C0.25 metallic glasses. The Ni68.7Cr6.6Fe2.65Si7.8B14C0.25 metallic glasses was produced by the CBMS method with cooling rate corresponding for amorphous structure manufacturing. Design/methodology/approach: The crystallization of Ni68.7Cr6.6Fe2.65Si7.8B14C0.25 metallic glasses by method internal friction (IF) differential thermal analysis (DTA), X-ray and transmission electron microscopy (TEM) were studied. Findings: The investigation showed, that metallic glasses during thermal activation go through from metastable amorphous state by few medial states to the stable crystalline state (relaxation and crystallization process). Research limitations/implications: During thermal activation of metallic glasses two processes can be distinguished: structural relaxation of amorphous structure and complex crystallization process of alloy. Practical implications: Perception of structural relaxation and crystallization processes of metallic glasses can used for analysis of thermal stability of metallic glasses. Originality/value: The paper presents, that the thermal activation of metallic glasses conduct to the structural changes, which the final stage is crystalline state.

Słowa kluczowe

PL

materiały amorficzne; krystalizacja; szkło metaliczne; tarcie wewnętrzne

EN

amorphous materials; crystallization; metallic glasses; internal frictions

• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 1
• Strony: 33-36
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Poloczek, T.

autor

Griner, S.

autor

Nowosielski, R.

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

Bibliografia

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