Abstract: An alloy may include at least one first element, the first element being selected from: nickel (Ni), zirconium (Zr), cerium (Ce), molybdenum (Mo), aluminum (Al), tantalum (Ta), cobalt (Co), yttrium (Y), chromium (Cr), copper (Cu), and manganese (Mn); no more than three second elements, the second elements being selected from: phosphorous (P), carbon (C), boron (B), and silicon (Si); and the balance iron (Fe). Typically, a majority of a crystal structure of the alloy may be amorphous. In some instances, between 1 volume percent (vol. %) and 50 vol. % of the crystal structure may be a crystalline metal phase. The crystalline metal phase includes at least one of: copper (Cu), aluminum (Al), vanadium (V), chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), and molybdenum (Mo).