TY - JOUR
T1 - Effect of volume fraction and geometry of pores on mechanical properties of porous bulk glassy Pd42.5 Cu30 Ni7.5 P20 alloys
AU - Wada, Takeshi
AU - Kinaka, Makoto
AU - Inoue, Akihisa
N1 - Funding Information:
T.W. would like to thank Prof. K. Fujita at Ube National College of Technology for measuring mechanical properties, and Dr. N. Nishiyama, Dr. S. Yamaura, Dr. T. Yamamoto, and Miss K. Takenaka at Institute for Materials Research, Tohoku University, for their helpful advice and assistance. This work was supported by the 21st century COE program at Tohoku University Materials Research Center.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/4
Y1 - 2006/4
N2 - Porous Pd42.5 Cu30 Ni7.5 P20 bulk glassy alloy rods with porosities up to 71% were successfully prepared by water quenching in a 15 MPa hydrogen atmosphere, followed by heat treatment in a supercooled liquid state. Pores with sizes up to 80 μm were homogeneously distributed over the whole cross-sectional area. Under compressive deformation, the porous alloys with porosities exceeding 41% did not show macroscopic fracture in a wide compressive strain range up to 0.6. Mechanical tests with porous alloy rods whose potes are anisotropically oriented indicate that the plasticity of the porous alloy is strongly affected by stress concentration factor.
AB - Porous Pd42.5 Cu30 Ni7.5 P20 bulk glassy alloy rods with porosities up to 71% were successfully prepared by water quenching in a 15 MPa hydrogen atmosphere, followed by heat treatment in a supercooled liquid state. Pores with sizes up to 80 μm were homogeneously distributed over the whole cross-sectional area. Under compressive deformation, the porous alloys with porosities exceeding 41% did not show macroscopic fracture in a wide compressive strain range up to 0.6. Mechanical tests with porous alloy rods whose potes are anisotropically oriented indicate that the plasticity of the porous alloy is strongly affected by stress concentration factor.
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U2 - 10.1557/jmr.2006.0127
DO - 10.1557/jmr.2006.0127
M3 - Article
AN - SCOPUS:33744496528
VL - 21
SP - 1041
EP - 1047
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 4
ER -