Structured amorphous metals (sam) feedstock and products thereof
AssigneeLiquidmetal Coatings Enterprises, LLC.
InventorsJOHN KANG, EVELINA VOGLI
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Abstract
Embodiments disclosed herein relate to the production of bulk amorphous metal (BAM) alloys comprising chromium, manganese, molybdenum, tungsten, silicon, carbon, boron, and the balance of iron to replace tungsten carbide-based welded material. The BAM alloy embodied herein can be applied through PTA welding, HVOF, TWAS, flame spraying, plasma spraying, laser, their combinations, and other coating and welding processes. When used as welded material, the density of the embodiment of around 7 grams per CC, which is less dense than the tungsten carbide customarily used, resulting in even hard faces during welding spread uniformly across the weld, therefore creating a harder and more wear-resistant weld.
Claims20
A coating comprising a bulk amorphous alloy comprising Fe100−(a+b+c+d)(Cra(Mn+Mo)b(W+Si)c(C+B)d) wherein:
- B from 0 wt. % to about 5 wt. %, C from 0 wt. % to about 2 wt. %, Si from 0 wt. % to about 2, Mn from 0 wt. % to about 5 wt. %, Mo is 0 to about 20 wt. %, W is 0 wt. % to about 10 wt. %, and balance is Fe;
- and wherein C+B is about 2 to about 10 in wt. %.
A method comprising:
- obtaining a feedstock comprising Fe100−(a+b+c+d)(Cra(Mn+Mo)b(W+Si)c(C+B)d), wherein:
- a is from 10 to 30 at. %, b is from 10 to 20 at. %, c is from 2 to 10 at. %, and d is from 2 to 10 at. %,
- wherein in the feedstock in weight percent, B is greater than 0 to about 5, C is greater than to about 2, Si is greater than 0 to about 2, Mn is greater than 0 to about 5, Mo is greater than 0 to about 20, W is greater than 0 to about 10, wherein B+C is about 2 to about 10, and wherein a ratio Mo/(Mn+W+Si) is about 1 to about 5;
- wherein the feedstock is free of tungsten carbide;
- performing welding;
- and
- forming a weld.
The method of claim 19, wherein the feedstock is a wire feedstock or a powder feedstock.
Dependencies are inferred from the claim text.