TY - JOUR
T1 - Mechanical properties of Mg–Li–Cu–Y metallic glass composites
AU - Gonzalez Sanchez, Sergio
AU - Louzguine-Luzgin, Dimitri
AU - Perepezko, John
AU - Inoue, Akihisa
PY - 2010/8
Y1 - 2010/8
N2 - The mechanical behaviour of Mg65−xLixCu25Y10 (x = 9, 14 and 19) metallic glass composites has been studied. For 9 and 14 at.% Li the alloys exhibit a brittle behaviour. The microstructure of the alloy containing 9 at.% Li consists of a bcc Mg-Li solid solution phase embedded in an amorphous phase. Higher concentrations of Li promote the formation of the bcc phase, Mg2Cu and also a small volume fraction of Y-containing intermetallic. The alloy with the highest Li content, i.e. 19 at.%, exhibits a compressive engineering strain of 25%. The hierarchical microstructure design with multiphase components allows for the operation and interaction of different deformation behaviour to provide for useful levels of plastic deformation.
AB - The mechanical behaviour of Mg65−xLixCu25Y10 (x = 9, 14 and 19) metallic glass composites has been studied. For 9 and 14 at.% Li the alloys exhibit a brittle behaviour. The microstructure of the alloy containing 9 at.% Li consists of a bcc Mg-Li solid solution phase embedded in an amorphous phase. Higher concentrations of Li promote the formation of the bcc phase, Mg2Cu and also a small volume fraction of Y-containing intermetallic. The alloy with the highest Li content, i.e. 19 at.%, exhibits a compressive engineering strain of 25%. The hierarchical microstructure design with multiphase components allows for the operation and interaction of different deformation behaviour to provide for useful levels of plastic deformation.
KW - Composite materials
KW - Quenching
KW - Mechanical properties
U2 - 10.1016/j.jallcom.2010.02.141
DO - 10.1016/j.jallcom.2010.02.141
M3 - Article
SN - 0925-8388
VL - 504
SP - S114-S116
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - S1
ER -