Indentation fracture toughness behavior of FeCo-based bulk metallic glass intrinsic composites

Indentation fracture toughness of (Fe0·5Co0.5)69−xNb6B25+x (x=0, 2, 4) bulk metallic glass alloys in the partially crystalline (intrinsic composite) state has been studied. Corner cracking was observed on indentation in all the compositions above a certain critical load. High hardness with values in...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2017-02, Vol.457, p.86-92
Main Authors: Zameer Abbas, S., Ahmad Khalid, F., Zaigham, H.
Format: Article
Language:English
Subjects:
Amorphous materials
Brittleness
Bulk metallic glass composite
Corners
Cracking (fracturing)
Fracture mechanics
Fracture toughness
Hardness
Indentation
Indentation fracture toughness
Intermetallic compounds
Intrinsic composite
Metallic glasses
Morphology
Palmqvist cracks
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Summary:Indentation fracture toughness of (Fe0·5Co0.5)69−xNb6B25+x (x=0, 2, 4) bulk metallic glass alloys in the partially crystalline (intrinsic composite) state has been studied. Corner cracking was observed on indentation in all the compositions above a certain critical load. High hardness with values in excess of 1100HV was obtained for all the alloy compositions. Indentation fracture toughness measured through various empirical relations was found to be
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2016.11.022