Superalloys are high-performance alloys which exhibits excellent mechanical strength and creep resistance at high temperatures, good surface stability, and corrosion and oxidation resistance. The base element in Superalloys are nickel, cobalt, nickel-iron.
Nickel cobalt materials such as Nimonic alloys are relatively easy to polish by standard metallographic techniques. However, the results can be significantly improved by using finely graded nanometer alpha alumina polishing solutions.
SECTIONING
MAXCUT Abrasive blade (Cat. No. MAX-C or MAX-I 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 |
5-10 lbs |
Until plane |
| 9 um DIAMAT diamond on POLYPAD polishing pad | DIALUBE Purple Extender |
5-10 lbs |
2 minutes |
| 6 um DIAMAT diamond on TEXPAN polishing pad | DIALUBE Purple Extender |
5-10 lbs |
2 minutes |
1 um DIAMAT diamond on GOLDPAD polishing pad |
DIALUBE Purple Extender |
5-10 lbs |
2 minutes |
0.05 um Nanometer alumina on TRICOTE polishing pad |
|
5-10 lbs |
1 minute |
 |
Nimonic 90, 400 X (DIC) |