Hard ferrous materials such as carburized steel or white iron are relatively easy to polish. The difficulty in preparing case hardened steels arise where polishing relief can occur between the hard coating and the soft matrix. This relief is minimized by keeping the final polishing time to a minimum.
SECTIONING
MAXCUT Abrasive blade (Cat. No. MAX-D series)
MOUNTING
Compression Mounting with Phenolic, Epoxy or Diallyl Phthalate compression mounting resins
POLISHING
Abrasive/surface |
Lubricant |
Force/ sample |
Time |
240 grit SiC paper |
Water |
5 lbs |
Until plane |
| 3 um DIAMAT diamond on TEXPAN pad | DIALUBE | 5 lbs | 3 minutes |
1 um DIAMAT diamond on DACRON pad |
DIALUBE Purple Extender |
5 lbs |
2 minutes |
0.05 um Nanometer alumina on NAPPAD pad |
|
5 lbs |
30 seconds |
 |
White Iron - Hypo Eutectic, 1000X (DIC), etchant: Picral |
 |
White Iron - Hyper Eutectic, 200X (DIC), etchant: Picral |