Impact Fracture Energy of Bulk Amorphous Zr<SUB>55</SUB>Al<SUB>10</SUB>Cu<SUB>30</SUB>Ni<SUB>5</SUB> Alloy
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- Inoue Akihisa
- Institute for Materials Research, Tohoku University
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- Zhang Tao
- Institute for Materials Research, Tohoku University
Bibliographic Information
- Other Title
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- Impact Fracture Energy of Bulk Amorphous Zr55Al10Cu30Ni5 Alloy
- Impact Fracture Energy of Bulk Amorphou
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Abstract
The impact fracture energy and stress for the bulk amorphous Zr55Al10Cu30Ni5 alloy were measured by using the Charpy test specimen with U-shape notch. The maximum stress and displacement at the impact fracture are 1615 MPa and 0.44 mm, respectively, and the impact fracture energy is measured to be 63 kJ/m2. The impact fracture stress is nearly the same as the static tensile fracture strength (\fallingdotseq 1570 MPa) obtained in a wide strain rate range of 10−4 to 10−1 s−1 for the Zr-based bulk amorphous alloy. The impact fracture energy is higher than those (12 to 36 kJ/m2) for newly developed Al-based high-strength alloys which have been used in some application fields. The fracture surface appearance changes from the vein pattern in the region near the U-shape notch to an equiaxed dimple-like pattern in the inner region. The first evidence of the high impact fracture energy is important for development of the Zr-based bulk amorphous alloy as a new engineering material.
Journal
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- Materials Transactions, JIM
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Materials Transactions, JIM 37 (11), 1726-1729, 1996
The Japan Institute of Metals
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Details 詳細情報について
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- CRID
- 1390282679225049856
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- NII Article ID
- 130003556601
- 10002451144
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- NII Book ID
- AA10699969
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- COI
- 1:CAS:528:DyaK2sXntFKmtA%3D%3D
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- ISSN
- 2432471X
- 09161821
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- NDL BIB ID
- 4090721
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed