TY - JOUR
T1 - Compressive plasticity of a La-based glass-crystal composite at cryogenic temperatures
AU - Madge, S. V.
AU - Louzguine-Luzgin, D. V.
AU - Kawashima, A.
AU - Greer, A. L.
AU - Inoue, A.
N1 - Publisher Copyright:
© 2016 Elsevier Ltd.
PY - 2016/7/5
Y1 - 2016/7/5
N2 - The La55Al25Cu10Ni10-10 vol.% Ti glassy composites have excellent compressive strength and plasticity at room temperature (RT). At cryogenic temperature (77 K), neither the glassy matrix, nor the Ti particles undergo embrittlement, and the composite retains appreciable toughness. Surprisingly, despite significant shear band plasticity at 77 K, failure occurs in a mixed mode manner, with large areas showing quasi-cleavage features that appear to initiate from cracks at the glass-Ti interfaces, which also limit the overall plastic strain. Interface engineering is the key to further alloy development for even better properties.
AB - The La55Al25Cu10Ni10-10 vol.% Ti glassy composites have excellent compressive strength and plasticity at room temperature (RT). At cryogenic temperature (77 K), neither the glassy matrix, nor the Ti particles undergo embrittlement, and the composite retains appreciable toughness. Surprisingly, despite significant shear band plasticity at 77 K, failure occurs in a mixed mode manner, with large areas showing quasi-cleavage features that appear to initiate from cracks at the glass-Ti interfaces, which also limit the overall plastic strain. Interface engineering is the key to further alloy development for even better properties.
KW - Bulk metallic glass
KW - Composites
KW - Cryogenic plasticity
KW - Toughness
UR - http://www.scopus.com/inward/record.url?scp=84962858079&partnerID=8YFLogxK
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U2 - 10.1016/j.matdes.2016.03.149
DO - 10.1016/j.matdes.2016.03.149
M3 - Article
AN - SCOPUS:84962858079
SN - 0264-1275
VL - 101
SP - 146
EP - 151
JO - Materials and Design
JF - Materials and Design
ER -