Abstract
We report on experimental evidence of pronounced global plasticity measured in monolithic Pt{sub 57.5}Cu{sub 14.7}Ni{sub 5.3}P{sub 22.5} bulk metallic glass under both bending and unconfined compression loading conditions. A plastic strain of 20% is measured, never before seen in metallic glasses. Also, permanent deformation and a strain exceeding 3% before failure is observed during bending of 4 mm thick samples. To date, no monolithic metallic material has exhibited such a combination of high strength, extensive ductility, and high elastic limit. The large plasticity is reflected in a high Poisson ratio of 0.42, which causes the tip of a shear band to extend rather than initiate a crack. This results in the formation of multiple shear bands and is the origin of the observed large global ductility and very high fracture toughness, approximately 80 MPa m{sup -1/2}.
Schroers, Jan;
[1]
Liquidmetal Technologies, Lake Forest, California 92630 (United States)];
Johnson, William L
[1]
- Keck Laboratory of Engineering Materials, California Institute of Technology, Pasadena, California 91125 (United States)
Citation Formats
Schroers, Jan, Liquidmetal Technologies, Lake Forest, California 92630 (United States)], and Johnson, William L.
Ductile bulk metallic glass.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.255506.
Schroers, Jan, Liquidmetal Technologies, Lake Forest, California 92630 (United States)], & Johnson, William L.
Ductile bulk metallic glass.
United States.
https://doi.org/10.1103/PhysRevLett.93.255506
Schroers, Jan, Liquidmetal Technologies, Lake Forest, California 92630 (United States)], and Johnson, William L.
2004.
"Ductile bulk metallic glass."
United States.
https://doi.org/10.1103/PhysRevLett.93.255506.
@misc{etde_20621591,
title = {Ductile bulk metallic glass}
author = {Schroers, Jan, Liquidmetal Technologies, Lake Forest, California 92630 (United States)], and Johnson, William L}
abstractNote = {We report on experimental evidence of pronounced global plasticity measured in monolithic Pt{sub 57.5}Cu{sub 14.7}Ni{sub 5.3}P{sub 22.5} bulk metallic glass under both bending and unconfined compression loading conditions. A plastic strain of 20% is measured, never before seen in metallic glasses. Also, permanent deformation and a strain exceeding 3% before failure is observed during bending of 4 mm thick samples. To date, no monolithic metallic material has exhibited such a combination of high strength, extensive ductility, and high elastic limit. The large plasticity is reflected in a high Poisson ratio of 0.42, which causes the tip of a shear band to extend rather than initiate a crack. This results in the formation of multiple shear bands and is the origin of the observed large global ductility and very high fracture toughness, approximately 80 MPa m{sup -1/2}.}
doi = {10.1103/PhysRevLett.93.255506}
journal = []
issue = {25}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Dec}
}
title = {Ductile bulk metallic glass}
author = {Schroers, Jan, Liquidmetal Technologies, Lake Forest, California 92630 (United States)], and Johnson, William L}
abstractNote = {We report on experimental evidence of pronounced global plasticity measured in monolithic Pt{sub 57.5}Cu{sub 14.7}Ni{sub 5.3}P{sub 22.5} bulk metallic glass under both bending and unconfined compression loading conditions. A plastic strain of 20% is measured, never before seen in metallic glasses. Also, permanent deformation and a strain exceeding 3% before failure is observed during bending of 4 mm thick samples. To date, no monolithic metallic material has exhibited such a combination of high strength, extensive ductility, and high elastic limit. The large plasticity is reflected in a high Poisson ratio of 0.42, which causes the tip of a shear band to extend rather than initiate a crack. This results in the formation of multiple shear bands and is the origin of the observed large global ductility and very high fracture toughness, approximately 80 MPa m{sup -1/2}.}
doi = {10.1103/PhysRevLett.93.255506}
journal = []
issue = {25}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Dec}
}