Microstructural and failure characteristics of metal-intermetallic layered sheet composites

Journal Article · Wed Mar 01 04:00:00 EST 1995 · Metallurgical Transactions, A

OSTI ID:31965

Alman, D E; Rawers, J C; Hawk, J A ^[1]

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1. Bureau of Mines, Albany, OR (United States). Materials Science Division

A processing technique for the fabrication of layered metal-intermetallic composites is presented, in which a self-propagating, high-temperature synthesis reaction (SHS) was initiated at the interface between dissimilar elemental metal foils. The resultant composite microstructure consisted of a fully dense, well-bonded metal-intermetallic layered composite. In this United States Bureau of Mines study, metal (Fe, Ni, or Ti) foils were reacted with Al foils to produce metal-metal aluminide layered composites. Tensile tests conducted at room temperature revealed that composites could be designed to behave in a high-strength and high-toughness manner by altering the thicknesses of the starting elemental foils. Failure characteristics revealed that the processes that govern ductile vs brittle behavior of the composites occur early in the fracture.

• OSTI ID: 31965
• Journal Information: Metallurgical Transactions, A, Journal Name: Metallurgical Transactions, A Journal Issue: 3 Vol. 26; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
COMPOSITE MATERIALS
EXPERIMENTAL DATA
FAILURES
FRACTURE PROPERTIES
INTERMETALLIC COMPOUNDS
IRON ALLOYS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NICKEL ALLOYS
TITANIUM ALLOYS