TY - JOUR
T1 - Ultrasonic attenuation properties of glassy alloys in views of complex viscoelasticity
AU - Fukuhara, Mikio
AU - Zhang, Wei
AU - Louzguine-Luzgin, Dmitri V.
AU - Inoue, Akihisa
AU - Nishiyama, Nobuyuki
N1 - Funding Information:
This work was supported by a Grant-In-Aid for Science Research in the priority area “Research and Development Project on Advanced Metallic Glasses, Inorganic Materials and Joining Technology” from the Ministry of Education.
PY - 2007
Y1 - 2007
N2 - Using ultrasonics, acoustic attenuation characteristics of Pd 40Cu30P20Ni10, Zr 65Pd12.5Ni10Al7.5Cu5, Cu55Zr30Ti10Pd5, and Ti 41.5Cu47.5Ni7.5Hf5Zr 2.5Sn1 glassy alloys were examined in comparison with crystalline metals based on complex viscoelasticity. The glassy alloys favor to absorb the longitudinal one, but crystalline materials absorb the shear one, associated with periodicity and randomness of energy potentials, respectively. In sharp contrast to crystalline materials, Nyquist [Bell Syst. Tech. J. 11, 126 (1932)] diagrams of the glassy alloys are characterized by large areas of the third and the fourth quadrant in the loop, suggesting advancement of the relay in phase, that is, increment of the imaginary parts in complex waves.
AB - Using ultrasonics, acoustic attenuation characteristics of Pd 40Cu30P20Ni10, Zr 65Pd12.5Ni10Al7.5Cu5, Cu55Zr30Ti10Pd5, and Ti 41.5Cu47.5Ni7.5Hf5Zr 2.5Sn1 glassy alloys were examined in comparison with crystalline metals based on complex viscoelasticity. The glassy alloys favor to absorb the longitudinal one, but crystalline materials absorb the shear one, associated with periodicity and randomness of energy potentials, respectively. In sharp contrast to crystalline materials, Nyquist [Bell Syst. Tech. J. 11, 126 (1932)] diagrams of the glassy alloys are characterized by large areas of the third and the fourth quadrant in the loop, suggesting advancement of the relay in phase, that is, increment of the imaginary parts in complex waves.
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U2 - 10.1063/1.2716862
DO - 10.1063/1.2716862
M3 - Article
AN - SCOPUS:34047177930
VL - 90
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 13
M1 - 131902
ER -