TY - JOUR
T1 - Effect of Cu on nanocrystallization and plastic properties of FeSiBPCu bulk metallic glasses
AU - Li, Xue
AU - Kato, Hidemi
AU - Yubuta, Kunio
AU - Makino, Akihiro
AU - Inoue, Akihisa
N1 - Funding Information:
One of the authors (XL) wishes to acknowledge the financial support from the Global COE Program “Materials Integration (International Center of Education and Research), Tohoku University,” MEXT, Japan.
PY - 2010/4/25
Y1 - 2010/4/25
N2 - This study was focused on improving the plastic properties of FeSiBP bulk metallic glasses (BMGs) by adding small amount of Cu (0.1-0.6%). BMGs with significant plastic strain of up to around 3.1% and a strength of 3.3 GPa were obtained in our investigation. Multiple shear bands and related shear ledges were observed on the deformed specimen. The high plasticity is attributed to the nano-scale inhomogeneity that results from phase separation, which can hinder the propagation of shear bands, in effect promoting multiple shearing. The characteristic size of the α-Fe nanoparticles embedded in the glassy matrix changed with Cu content. Our results indicated a dependence between the plastic behavior and the size of the α-Fe nanoparticles. A higher Cu content resulted in an increase in the size of the α-Fe nanoparticles. Of all the samples tested in our investigation, the (Fe0.76Si0.096B0.084P0.06)99.9Cu0.1 alloy exhibited the best plastic properties.
AB - This study was focused on improving the plastic properties of FeSiBP bulk metallic glasses (BMGs) by adding small amount of Cu (0.1-0.6%). BMGs with significant plastic strain of up to around 3.1% and a strength of 3.3 GPa were obtained in our investigation. Multiple shear bands and related shear ledges were observed on the deformed specimen. The high plasticity is attributed to the nano-scale inhomogeneity that results from phase separation, which can hinder the propagation of shear bands, in effect promoting multiple shearing. The characteristic size of the α-Fe nanoparticles embedded in the glassy matrix changed with Cu content. Our results indicated a dependence between the plastic behavior and the size of the α-Fe nanoparticles. A higher Cu content resulted in an increase in the size of the α-Fe nanoparticles. Of all the samples tested in our investigation, the (Fe0.76Si0.096B0.084P0.06)99.9Cu0.1 alloy exhibited the best plastic properties.
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U2 - 10.1016/j.msea.2009.12.026
DO - 10.1016/j.msea.2009.12.026
M3 - Article
AN - SCOPUS:77249178822
VL - 527
SP - 2598
EP - 2602
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 10-11
ER -