Fe-Cr-Al alloys for electric resistance wires
AssigneeKorea Electrotechnology Research Institute
InventorsHee Woong Lee, Su Dong Park
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Abstract
The present invention relates to Fe—Cr—Ar type alloys with additions to improve workability thereof, strength, and heat resistance. The present Fe—Cr—Al alloy for electric resistance wires comprises a basic alloy added with only Be of below 0.01 wt % or with both Be and misch metal composed of rare earth elements wherein the basic alloy consists of a balance element of Fe, a Cr element of 12˜30 wt %, an Al element of 3˜14 wt %, a Zr element of 0.01˜1.5 wt %, and a Ti element of 0.001˜0.1 wt %. The present Fe—Cr—Al type alloys remarkably improve physical properties of Fe—Cr—Al ferritic alloys, especially, workability and mechanical properties, and heating characteristic.
Claims11
A Fe—Cr—Al—Zr—Ti—Be alloy, containing the elements Fe, Cr, Al, Zr, Ti and Be, said alloy comprising
- a balance element of Fe,
- a Cr element of 12–30 wt %,
- an Al element, present in an amount of about 3–15 wt %,
- a Zr element, wherein the Zr element is present in an amount of less than 1.5 wt %,
- a Ti element of 0.0001–0.15 wt %,
- and a Be element, present in an amount of about 0.001 wt %–0.1 wt %, and wherein said Fe—Cr—Al—Zr—Ti—Be alloy is usable for electric resistance wires.
Dependencies are inferred from the claim text.