METHOD OF MAKING NON-GALLING PARTS USING AMORPHOUS METAL SURFACES
Provided is a method for increasing anti-galling of parts using a coating material comprising an amorphous alloy. The parts may be a vehicle or machine component, for example, that are subject to frictional and sliding forces. The disclosed coating reduces galling and friction between surfaces, and increases the lift of such parts.
1 . A method of increasing galling resistance of a substrate comprising coating a material over at least a portion of a surface of a substrate, wherein the coating material comprises an amorphous alloy.
2 . The method according to claim 1 , wherein the coating material withstands testing according to the ASTM G 98-02 standard.
3 . The method according to claim 1 , wherein the coating is performed using a thermal spray process.
4 . The method according to claim 1 , wherein the coating comprises utilizing at least one of: a flame spray, electric arc wire spray, plasma spray, high velocity oxy-fuel spray, high-velocity air-fuel spray, cold spray, welding, or a cladding deposition process.
5 . The method according to claim 1 , wherein the substrate is a vehicle component or a machine component.
6 . The method according to claim 1 , wherein the substrate is at least a part of a piston ring, a synchronizer ring, a synchronizing assembly, a shift fork, a differential shaft, a differential pin, a transaxle assembly, a differential assembly, a fuel injector, a cam follower, a gear, a valve, a pump component, and a lathe bedway.
7 . The method according to claim 1 , wherein the material is applied in the form of a layer over the surface of the substrate, and wherein the layer has a thickness of between about 50 microns and about 1000 microns.
8 . The method according to claim 1 , wherein the material has a friction coefficient of about 0.1 or less.
9 . The method according to claim 1 , wherein the material has a wear resistance characterized by a volume loss of less than about 10 mm 3 .
10 . The method according to claim 1 , wherein the material is resistant to temperature induced degradation at temperatures up to about 1000° C.
11 . The method according to claim 1 , wherein the material has a hardness of between about 600 HV and about 1500 HV.
12 . The method according to claim 1 , wherein the material has a hardness of greater than about 1000 HV and a crystallization temperature of greater than about 600° C.
13 . The method according to claim 1 , wherein the substrate exhibits improved galling resistance when compared to another component in the absence of the coating material.
14 . The method according to claim 1 , wherein the substrate exhibits improved sliding properties when compared to another component in the absence of the coating material.
15 . An article comprising:
a substrate, and
a coating material disposed over at least a portion of a surface of the substrate;
wherein the coating material comprises an amorphous alloy.
16 . The article according to claim 15 , wherein the coating material withstands testing according to the ASTM G 98-02 standard.
17 . The article according to claim 15 , wherein the substrate is a vehicle or machine component.
18 . The article according to claim 15 , wherein the substrate is at least a part of a piston ring, a synchronizer ring, a synchronizing assembly, a shift fork, a differential shaft, a differential pin, a transaxle assembly, a differential assembly, a fuel injector, a cam follower, a gear, a valve, a pump component, and a lathe bedway.
19 . The article according to claim 15 , wherein the coating material is in the form of a layer over the substrate, and wherein the layer has a thickness of between about 50 microns and about 1000 microns.
20 . The article according to claim 15 , wherein the coating material has a friction coefficient of about 0.1 or less.
21 . The article according to claim 15 , wherein the coating material has a wear resistance characterized by a volume loss of less than about 10 mm 3 .
22 . The article according to claim 15 , wherein the coating material is resistant to temperature induced degradation at temperatures up to about 1000° C.
23 . The article according to claim 15 , wherein the coating material has a hardness of between about 600 HV and about 1500 HV.
24 . The article according to claim 15 , wherein the coating material has a hardness of greater than about 1000 HV and a crystallization temperature of greater than about 600° C.
25 . The article according to claim 15 , wherein the article exhibits improved galling resistance when compared to another component in the absence of the coating material.
26 . The article according to claim 15 , wherein the article exhibits improved sliding properties when compared to another component in the absence of the coating material.