期刊论文详细信息
JOURNAL OF ALLOYS AND COMPOUNDS 卷:509
Role of Mo in the local configuration and structure stabilization of amorphous steels, a Synchrotron X-ray diffraction and Mossbauer study
Article; Proceedings Paper
Pineda, E.1  Bruna, P.2  Serrano, J.2,3  Torrens-Serra, J.4  Crespo, D.2 
[1] Univ Politecn Cataluna, ESAB, Dept Fis & Enginyeria Nucl, Castelldefels 08860, Spain
[2] Univ Politecn Cataluna, EPSC, Dept Fis Aplicada, Castelldefels 08860, Spain
[3] Inst Catalana Recerca & Estudis Avancats, Catalonia, Spain
[4] Univ Autonoma Barcelona, Dept Fis, Grp Nanomat & Microsistemes, Bellaterra 08193, Spain
关键词: Amorphous materials;    Metallic glasses;    Rapid-solidification;    Quenching;   
DOI  :  10.1016/j.jallcom.2011.02.019
来源: Elsevier
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【 摘 要 】

Amorphous steels are promising materials with potential structural applications. The glass-forming ability (GFA) and mechanical properties of metallic glasses are intimately related to the local structure. In Fe-based alloys, Cr and Mo content seem to play a key role in stabilizing the amorphous atomic-level structure. Here we present a study on the effects of changing Mo content in Fe(72-x)C(7)Si(3.3)B(5.5)P(8.7)Cr(2.3)Al(2)Mo(x) amorphous steels. We study the local structure of these alloys by Synchrotron X-ray diffraction and Mossbauer spectroscopy. The results show how the amorphous phase evolves from a ferromagnetic Fe-rich structure to a structure with predominance of paramagnetic environments with the increase of Mo content. The changes in the distribution of magnetic environments cannot be attributed only to the Fe-Mo substitution but to a change of local configuration in the amorphous phase. (C) 2011 Elsevier B.V. All rights reserved.

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