Abstract
The fracture strain, changes in electrical resistivity and Curie temperature, and the volume change (the amount of annealed-out excess volume) were measured as a function of annealing temperature in some Fe-Ni based metallic glasses (Fe27Ni53P14B6, Fe29Ni49P14B6Si2, Fe40Ni40P14B6, Fe40Ni38Si8B14 and Fe63Ni15Si8B14), in order to clarify the embrittlement behaviour during structural relaxation. A close relationship between the ductile-brittle transition temperature and the resistivity change was observed in these metallic glasses. Particularly, in Fe27Ni53P14B6 metallic glass, it was found that the ductile-brittle transition temperature is well consistent with the annealing temperature at which the changes in resistivity and Curie temperature are maximum. The results obtained in the present study indicate that the embrittlement behaviour during structural relaxation in these Fe-Ni based metallic glasses is closely related to the formation of more stable short range ordered structure.
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Komatsu, T., Matusita, K. & Yokota, R. Structural relaxation and embrittlement in Fe-Ni based metallic glasses. J Mater Sci 20, 1375–1382 (1985). https://doi.org/10.1007/BF01026335
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DOI: https://doi.org/10.1007/BF01026335