Material for high velocity oxy fuel spraying, and products made therefrom
The inventors have developed a new alloy which is useful in HVOF-spraying of a substrate, such as plungers which are used in glass manufacture. When coated with said alloy, these parts display high wear resistance and consequently longer lifetime.
1. A metal powder consisting of (all percentages in wt %) carbon 2.2-2.85; silicon 2.1-2.7; boron 1.4-1.6; iron 1.3-2.6; chromium 5.7-8.5; tungsten 32.4-33.6; cobalt 4.4-5.2; the balance being nickel, wherein
the powder is configured to be sprayed by a HVOF spraying process and has a particle size of 12-58 μm as measured by sieve analysis.
2. Metal powder according to claim 1 , the powder consisting of carbon 2.3-2.7; silicon 2.15-2.6; boron 1.4-1.6; iron 1.5-2.05; chromium 7.3-7.5; tungsten 32.4-33.6; cobalt 4.4-5.2; the balance being nickel.
3. Metal powder according to claim 1 , the particle size of the powder is 20-53 μm as measured by sieve analysis.
4. Method for coating a surface by high velocity oxy fuel spraying, wherein the powder according to claim 1 is used.
5. Component manufactured by the method according to claim 4 .
6. A metal powder consisting of (all percentages in wt %):
carbon 2.2-2.85;
silicon 2.1-2.7;
boron 1.4-1.6;
iron 1.3-2.6;
chromium 7.3-7.5;
tungsten 32.4-33.6;
cobalt 4.4-5.2;
the balance being nickel,
wherein the powder has a particle size of 12-58 μm as measured by sieve analysis.