Journal
ACTA MATERIALIA
Volume 127, Issue -, Pages 341-350Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2017.01.031
Keywords
In-situ transmission electron microscopy; In-situ synchrotron X-ray diffraction; Metallic glasses; Crystallization kinetics; Microstructure
Funding
- MINECO [FIS2014-54734-P]
- Generalitat de Catalunya [2014SGR00581]
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The thermal stability and the quantification of the different transformation processes involved in the overall crystallization of the Fe50Cr15Mo14C15B6 amorphous alloy were investigated by several characterization techniques. Formation of various metastable and stable phases during the devitrification process in the sequence alpha-Fe, x-Cr6Fe18Mo5, M-23(C,B)(6), M7C3, eta-Fe3Mo3C and FeMo2B2 (with M = Fe, Cr, Mo), was observed by in-situ synchrotron high energy X-ray diffraction and in-situ transmission electron microscopy. By combining these techniques with differential scanning calorimetry data, the crystallization states and their temperature range of stability under continuous heating were related with the evolution of the crystallized fraction and the phase sequence as a function of temperature, revealing structural and chemical details of the different transformation mechanisms. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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