Semi-solid processing of bulk metallic glass matrix composites
US7883592B2 · kind B2 · utility
49Cited by
46References
25Claims
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Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Apr 15, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2200/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of forming bulk metallic glass engineering materials, and more particularly a method for forming coarsening microstructures within said engineering materials is provided. Specifically, the method forms ‘designed composites’ by introducing ‘soft’ elastic/plastic inhomogeneities in a metallic glass matrix to initiate local shear banding around the inhomogeneity, and matching of microstructural length scales (for example, L and S) to the characteristic length scale RP (for plastic shielding of an opening crack tip) to limit shear band extension, suppress shear band opening, and avoid crack development.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.