Patent ID: 8689777

Claim:
A method of cutting feedstock, comprising: providing a wire comprising an iron based alloy comprising iron present in the range of 40 at % to 68 at %, nickel present in the range of 13 at % to 17 at %, cobalt present in the range of 1 at % to 21 at %, boron present in the range of 12 at % to 19 at %, optionally carbon present in the range of 1 at % to 6 at %, optionally silicon present in the range of 0.1 at % to 4.0 at %, and one or more metals selected from the group consisting of titanium, molybdenum, aluminum, and/or chromium present in the range of 0 to 20 at %, wherein said wire has an aspect ratio of greater than one and exhibits metallic and/or crystalline phases of less than 500 nm in size; and cutting said feedstock with said wire.