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New class of plastic bulk metallic glass.
- Source :
-
Physical review letters [Phys Rev Lett] 2008 Feb 22; Vol. 100 (7), pp. 075501. Date of Electronic Publication: 2008 Feb 20. - Publication Year :
- 2008
-
Abstract
- An intrinsic plastic Cu(45)Zr(46)Al(7)Ti(2) bulk metallic glass (BMG) with high strength and superior compressive plastic strain of up to 32.5% was successfully fabricated by copper mold casting. The superior compressive plastic strain was attributed to a large amount of randomly distributed free volume induced by Ti minor alloying, which results in extensive shear band formation, branching, interaction and self-healing of minor cracks. The mechanism of plasticity presented here suggests that the creation of a large amount of free volume in BMGs by minor alloying or other methods might be a promising new way to enhance the plasticity of BMGs.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 100
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 18352567
- Full Text :
- https://doi.org/10.1103/PhysRevLett.100.075501