You may also try a coating to help improve the erosion resistance. TMT Research in Smith River, CA offers some diffusion coatings for erosion protection on pumps and valves. Contact them if you are interested in that option.
I am looking for a corrosion protection "coating" that I can apply in my shop to protect magnesium aircraft castings from corrosion by water at about 100 F.0
There are several coatings that would give you the results that you are looking for. We have used thermal spray overlays and diffusion alloys (Boriding) in slurry service with excellent results. Feel free to contact me directly if you would like additional information...
"Stellite" is also commonly applied by welding. There are several different compositions of Stellite that can be used. The main difference is the carbon content. This allows you to select an overlay that has the hardness-toughness properties that are best for your application.
Check...
If erosion is due to abrasive wear then a hard coating or surface treatment would be advisable. We find that boronizing work extremely well in combination with both CA6NM and CA=15/410 to protect against erosion. Unlike a spray coating, boronizing will harden all surfaces not just what is easily...
We have used Boron diffusion alloys coatings to protect against solid particles in control valves with great success. See www.tmtresearch.com or contact me directly (matt.hinckley@tmtresearch.com) for more info.
Depending on the application a thermal spray coating may work well. At 950F you would probably want to use a Chrome Carbide based coating with a Ni-Cr binder. It will be more expensive than nitriding and may require finishing. Feel free to contact me if you need more info...
