Methods for the implementation of nanocrystalline and amorphous metals and alloys as coatings
Methods for the use of nanocrystalline or amorphous metals or alloys as coatings with industrial processes are provided. Three, specific, such methods have been detailed. One of the preferred embodiments provides a method for the high volume electrodeposition of many components with a nanocrystalline or amorphous metal or alloy, and the components produced thereby. Another preferred embodiment provides a method for application of a nanocrystalline or amorphous coatings in a continuous electrodeposition process and the product produced thereby. Another of the preferred embodiments of the present invention provides a method for reworking and/or rebuilding components and the components produced thereby.
1. An article comprising:
a component; and
an electrodeposited metal alloy coating, wherein the coating has nanocrystalline structure and the coating includes a first layer that uniformly covers the entire component and a second layer that uniformly covers the entire first layer, the first layer having a first nanocrystalline crystal size and a first composition and the second layer having a second nanocrystalline crystal size and second composition, wherein the first nanocrystalline crystal size and the first composition are different than the second nanocrystalline crystal size and the second composition.
2. The article of claim 1 , wherein the metal alloy is a nickel-based alloy.
3. The article of claim 2 , wherein the metal alloy is Ni—W.
4. The article of claim 1 , wherein the component is electrically conductive.
5. The article of claim 1 , wherein the first layer comprises a Ni—W alloy and the second layer comprises a Ni—W alloy having a different Ni—W ratio than the first layer.