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Compression Behavior of Mg-Cu-Gd Bulk Metallic Glasses with Various Specimen Height to Diameter Ratios
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- Chen H. M.
- Institute of Materials Sci. & Eng.; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University
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- Chang Y. C.
- Institute of Materials Sci. & Eng.; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University
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- Hung T. H.
- Institute of Materials Sci. & Eng.; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University
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- Du X. H.
- Institute of Materials Sci. & Eng.; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University Department of Materials Engineering, Shenyang Institute of Aeronautical Engineering
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- Huang J. C.
- Institute of Materials Sci. & Eng.; Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University
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- Jang J. S. C.
- Department of Materials Sci. & Eng., I-Shou University
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- Liaw P. K.
- Department of Materials Sci. & Eng., University of Tennessee
Description
The mechanical behavior of the Mg65Cu25Gd10 bulk metallic glasses (BMGs) in term of compression testing is reported in this study. Room-temperature compression tests are conducted on specimens with various height to diameter ratios (h⁄d) from 2:1, 1:1, 1:2, to 1:4. The failure strength, deformation strain, and the fracture surface morphologies are seen to vary systematically in accordance with the specimen h⁄d ratio. For specimens with h⁄d of 2:1 or 1:1, the compression response is similar to those in most reports. In contrast, for specimens with lower h⁄d ratios, especially at h⁄d=1:4 (or 0.25), the shear band propagation appears to be constrained, resulting in the enhanced ductility. It suggests that different deformation mechanisms are operative for specimens with different h⁄d ratios. The possible deformation mechanisms in specimens of different geometries are discussed.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 48 (7), 1802-1805, 2007
The Japan Institute of Metals and Materials
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Keywords
Details 詳細情報について
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- CRID
- 1390001204251872384
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- NII Article ID
- 130004453670
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- ISSN
- 13475320
- 13459678
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed
