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Boronizing
Richter Precision Inc. offers boronizing
services at its facilities.
 Richter
Precision, Inc. is pleased to offer the boronizing process under
the proprietary name Titankote™ B. (The boronizing process
may also referred to as boriding)
Name
Titankote™ B
Type
Diffusion
Composition Complex Borides
Color Gray
Thickness 10-200 µm (depth of diffused layer)
Micro-hardness 1600-1900 HV
Coefficient of Friction 0.4
Boronizing is
a thermo-chemical surface treatment in which boron atoms are diffused
into the surface of a workpiece to form complex borides (i.e. -
FeB2) with the base metal.
Practically any ferrous material can be boronized; however, the
higher the content of alloy elements, the slower the diffusion rate.
Boronizing is
not a surface coating, but rather a diffusion process that under
high heat introduces boron into the surface of the material. The
result is a hard, slippery surface capable of performing at higher
temperatures than conventional PVD and CVD coatings.
Metallographic
samples of treated parts will show a “root” or “saw-tooth”
pattern exhibited by the boronized layer. Boron fills the spaces
in the substrate and creates an entirely new alloy consisting of
boron and ferrite. There is no mechanical interface between the
alloy and the substrate as this is a true diffusion process.
Boronizing is
best suited for hot forging applications, but has also been used
successfully for general wear resistance of carbon steel components.
Additionally, boronizing has been proven effective in reducing wear
in a number of high temperature applications, including burner tubes
and related components.
Features:
1. High hardness (1600-1900 HV) – nitriding has a max. hardness
of only 1100 HV
2. Increases resistance to acids (especially Hydrochloric acid)
3. Reduced coefficient of friction (0.4)
4. Process can be selectively applied
5. Surface treatment can be uniformly applied to irregular shapes
6. Heat treatable materials can be fully hardened after boronizing
7. High resistance to temperature (approx. 1200 ° F)
.
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