Wear-resistant Cu—Ni—Sn coating
The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.
1. An article, comprising:
a substrate, and
a spinodal coating adhered to the substrate at an interface therebetween,
wherein the coating comprises a copper-nickel-tin-alloy, the coating having a thickness of at least 100 micrometers.
2. The article of claim 1 , wherein the coating has a thickness of about 100 micrometers to about 2000 micrometers.
3. The article of claim 1 , wherein the coating is deposited by a thermal spray process.
4. The article of claim 3 , wherein the thermal spray process is a cold spray, plasma spray, warm spray, detonation spray, high-velocity oxy fuel spray, or arc spray process.
5. The article of claim 3 , wherein the spraying occurs at a pressure of about 20 bar to about 40 bar.
6. The article of claim 3 , wherein the alloy mixture has a temperature of about 350° C. to about 700° C.
7. The article of claim 3 , wherein the alloy mixture is sprayed at a velocity of 50 m/s to 1500 m/s.
8. The article of claim 1 , wherein the copper-nickel-tin alloy is about 8 wt % to about 22 wt % nickel, about 4 wt % to about 10 wt % tin, and the remaining balance is copper.
9. The article of claim 1 , wherein the article is a ring.
10. A device containing an article therein, wherein the article comprises:
a substrate, and
a spinodal coating adhered to the substrate at an interface therebetween, and
wherein the coating comprises a copper-nickel-tin-alloy.