TY - JOUR
T1 - Effect of loading rate on dynamic fracture morphology of a Zr-based bulk metallic glass
AU - Khanolkar, Gauri R.
AU - Haghighat, Shima
AU - Hodge, Andrea M.
AU - Flores, Katharine M.
AU - Eliasson, Veronica
N1 - Publisher Copyright:
© 2015 The Japan Institute of Metals and Materials.
PY - 2015
Y1 - 2015
N2 - Low-velocity plate impact experiments using a single-stage gas-gun are performed on Zr58.5Cu15.6Ni12.8Al10.3Nb2.8. Compressive fracture surfaces of the samples subjected to varying impact velocities and stress amplitudes are evaluated in order to study their loading rate dependence. Samples impacted at increasing loading rates, from increasing velocities of impact, show a larger extent of localized melting while those subjected to increasing stress show a transition from ductile to brittle fracture. These observations suggest that the mechanisms and morphology of fracture are strain-rate dependent.
AB - Low-velocity plate impact experiments using a single-stage gas-gun are performed on Zr58.5Cu15.6Ni12.8Al10.3Nb2.8. Compressive fracture surfaces of the samples subjected to varying impact velocities and stress amplitudes are evaluated in order to study their loading rate dependence. Samples impacted at increasing loading rates, from increasing velocities of impact, show a larger extent of localized melting while those subjected to increasing stress show a transition from ductile to brittle fracture. These observations suggest that the mechanisms and morphology of fracture are strain-rate dependent.
KW - Bulk metallic glass (BMG)
KW - Impact experiment
KW - Scanning electron microscopy (SEM)
UR - https://www.scopus.com/pages/publications/84929932219
U2 - 10.2320/matertrans.M2014467
DO - 10.2320/matertrans.M2014467
M3 - Article
AN - SCOPUS:84929932219
SN - 1345-9678
VL - 56
SP - 840
EP - 843
JO - Materials Transactions
JF - Materials Transactions
IS - 6
ER -