Calorizing is one of the surface treatment
methods which modifies the material surface
through an aluminum diffusion process. (Gasified
aluminum diffuses to form the intermetallic
compound (Ni-Cr-Al-Fe, in case of Austenitic
Stainless Steel) layer on the surface of
steel material.) The calorized layer is not
removed like other types of plating.(see
Photo 1) |
|
The key characteristics is as follows: |
|
a) |
High temp. oxidation resistance. |
|
b) |
Abrasion(Erosion) resistance. |
|
c) |
Carburization resistance. |
|
d) |
Freedom from stress corrosion cracking. |
|
e) |
Resistance against erosion / corrosion by
molten metal (Zn, Fe, Cu etc.) and non metal.
|
|
f) |
Resistance against corrosive gas, liquid
and ash. |
|
g) |
Spatter is hardly sticking and sticked spatter
is easily removable. |
We shows the sample of the applications for
the calorizing as
follows: |