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US 4,701,226 AGranted
Corrosion resistant amorphous chromium-metalloid alloy compositions
AssigneeThe Standard Oil Company
InventorsRichard S. Henderson, Gary A. Shreve, Michael A. Tenhover
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Abstract
Amorphous chromium-metalloid alloys exhibiting corrosion resistance in acid environments are described. The alloys contain a relatively low amount of a metalloid selected from the group of B, C, P, N, S, Sb and As. Additional metalloid elements such as Al, Si and Ge may also be present to enhance other properties of the amorphous alloy.
Claims8
Amorphous metal alloy of the formula:
- ti Cr.sub.1-x M.sub.x
- wherein
- M is one element selected from the group consisting of B, C, P, N. S, Sb and As;
- and
- when M is B, x ranges from about 0.04 to about 0.16.,
- when M is C, x ranges from about 0.04 to about 0.20, and
- when M is P, N. S, Sb and As, x ranges from about 0.04 to about 0.30.
4 more elements
An amorphous metal alloy of the formula:
- Cr.sub.1-x M.sub.x
- wherein
- M is at least two elements selected from the group consisting of B, C, P, N, S, Sb and As;
- and
- wherein
- that portion of x due to B ranges from about 0.04 to about 0.16;
- that portion of x due to C ranges from about 0.04 to about 0.20;
- and
- that portion of x due to P, N, S, Sb and As ranges from about 0.04 to about 0.30;
- with
- the provisos that x ranges from about 0.04 to about 0.30;
- that portion of x due to M when M is B and/or C and when other M elements are present ranges from about 0.04 to about 0.15;
- and
- the ratio of (x due to M when M is B and/or C and when other M elements are present) to (1-x) is less than or equal to 0.5.
11 more elements
Dependencies are inferred from the claim text.