- Joined
- Jan 2, 2001
- Messages
- 108
Ray
One of Bodycote's test is to Rockwell through the coating
and look at it under the microscope for cracking or peeling.
If you were to hit it with a ball peen hammer and only deformed
the substrate the coating will be deform also.
If you abuse or remove the base material the coating will be
removed with the blade material.
At only 2 microns boron carbide can withstand great amount of force without debonding.
But all Thin Film Coatings need backing or a hardend base material for support.
One reason we cannot coat soft materials with Boron Carbide, is the
Egg Shell Effect Very hard on the outside but nothing to support it.
Darrell Lewis
Dlewis@bodycote-na.com
One of Bodycote's test is to Rockwell through the coating
and look at it under the microscope for cracking or peeling.
If you were to hit it with a ball peen hammer and only deformed
the substrate the coating will be deform also.
If you abuse or remove the base material the coating will be
removed with the blade material.
At only 2 microns boron carbide can withstand great amount of force without debonding.
But all Thin Film Coatings need backing or a hardend base material for support.
One reason we cannot coat soft materials with Boron Carbide, is the
Egg Shell Effect Very hard on the outside but nothing to support it.
Darrell Lewis
Dlewis@bodycote-na.com