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Plasticity-improved Zr–Cu–Al bulk metallic glass matrix composites containing martensite phase.
- Source :
-
Applied Physics Letters . 8/1/2005, Vol. 87 Issue 5, p051905. 3p. 2 Diagrams, 2 Graphs. - Publication Year :
- 2005
-
Abstract
- Zr48.5Cu46.5Al5 bulk metallic glass matrix composites with diameters of 3 and 4 mm were produced through water-cooled copper mold casting. Micrometer-sized bcc based B2 structured CuZr phase containing martensite plate, together with some densely distributed nanocrystalline Zr2Cu and plate-like Cu10Zr7 compound, was found embedded in a glassy matrix. The microstructure formation strongly depends on the composition and cooling rate. Room temperature compression tests reveal significant strain hardening and plastic strains of 7.7% and 6.4% before failure are obtained for the 3-mm- and 4-mm-diam samples, respectively. The formation of the martensite phase is proposed to contribute to the strain hardening and plastic deformation of the materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 87
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 17868699
- Full Text :
- https://doi.org/10.1063/1.2006218