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Preparation and properties of Ni68.6W17.9B13.5metallic glass
- Source :
- Transactions of Nonferrous Metals Society of China; May 2015, Vol. 25 Issue: 5 p1575-1579, 5p
- Publication Year :
- 2015
-
Abstract
- A novel Ni-based metallic glass, i.e., Ni68.6W17.9B13.5(mole fraction, %), was prepared using melt spinning method. The results showed that the element B has much effect on the glass forming ability of the Ni–W–B metallic glass. Ni–W–B metallic glass could not be fabricated with lower content of B, whereas a higher content of 13.5% B could easily lead to the fully amorphous structure. The glass transition temperature and the onset temperature of crystallization are as high as 768 K and 781.5 K, respectively, and the crystallization activation energy calculated by Ozawa model is (637±60) kJ/mol, which showed strong thermal stability of Ni68.6W17.9B13.5metallic glass. This novel Ni-based metallic glass also exhibited good mechanical properties with the tensile strength of about 2331 MPa. The results indicate that this metallic glass should have a promising application in high strength material.
Details
- Language :
- English
- ISSN :
- 10036326
- Volume :
- 25
- Issue :
- 5
- Database :
- Supplemental Index
- Journal :
- Transactions of Nonferrous Metals Society of China
- Publication Type :
- Periodical
- Accession number :
- ejs36159687
- Full Text :
- https://doi.org/10.1016/S1003-6326(15)63760-8