Effect of sub-T _g annealing on the mechanical properties of a ZrAlNiCuNb bulk metallic glass

摘要

The effects of isothermal annealing below the glass transition temperature (T _g) on the microstructures and mechanical properties of a Zr₅₆Al_10.9Ni_4.6Cu_27.8Nb_0.7 bulk metallic glass (BMG) have been investigated using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and compression and indentation testing methods. Sub-T _g annealing results in a reduction in the free volume and nucleation of nanocrystalline second-phase particles in the BMG. Complicated effects of the structural changes on the mechanical properties of the BMG were observed and these are discussed.View full textDownload full textKeywordsmechanical properties, metallic glass, indentation, electron microscopy, nucleationRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2011.609842