Method of making metal matrix composites reinforced with ceramic particulates
Composite materials and methods for making such materials are disclosed in which dispersed ceramic particles are at chemical equilibrium with a base metal matrix, thereby permitting such materials to be remelted and subsequently cast or otherwise processed to form net weight parts and other finished (or semi-finished) articles while maintaining the microstructure and mechanical properties (e.g. wear resistance or hardness) of the original composite. The composite materials of the present invention are composed of ceramic particles in a base metal matrix. The ceramics are preferably carbides of titanium, zirconium, tungsten, molybdenum or other refractory metals. The base metal can be iron, nickel, cobalt, chromium or other high temperature metal and alloys thereof. For ferrous matrices, alloys suitable for use as the base metal include cast iron, carbon steels, stainless steels and iron-based superalloys. 2 figs.
- Research Organization:
- Waste Energy Technology Corp
- DOE Contract Number:
- AC02-84ER80143
- Assignee:
- Massachusetts Inst. of Tech., Cambridge, MA (United States)
- Patent Number(s):
- A; US 4853182
- Application Number:
- PPN: US 7-104173
- OSTI ID:
- 7267911
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601* -- Other Materials-- Preparation & Manufacture
ALLOYS
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHROMIUM ALLOYS
COBALT ALLOYS
COMPOSITE MATERIALS
DISPERSIONS
FABRICATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
MATERIALS
MATRIX MATERIALS
MOLYBDENUM CARBIDES
MOLYBDENUM COMPOUNDS
NICKEL ALLOYS
REFRACTORY METAL COMPOUNDS
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
ZIRCONIUM CARBIDES
ZIRCONIUM COMPOUNDS