Intermetallic metallic composite, method of manufacture thereof and articles comprising the same

摘要

A method comprises rolling a sheet in a roll mill. The sheet comprises a first metal, and has disposed upon each opposing face of the sheet, a first layer that comprises a second metal; the second metal being chemically different from the first metal. The method further comprises 5 cutting the sheet into a plurality of sheets, stacking the plurality of sheets; and rolling the stacked sheets in the roll mill to form a blank. The blank comprises a domain that comprises a gradient in composition between the first metal and the second metal. A core of the domain comprises the first metal and is in the form of a particle having a domain size of 44 to 1400 micrometers, wherein the plurality of domains have interstices between them. A method may also comprise 10 disposing upon a tube string, a sealing system which includes a expandable component and a support member. The support member comprises a plurality of domains contacting one another.