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PACE Technologies Metallographic Preparation CLASS Chart icon

Inconnel Steel Weld
Specimen Preparation (Class 6 Procedures)
Metallographic Class 6 sample preparation

Corrosion resistant materials such as Inconnel 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-D or MAX-I series)

MOUNTING Compression Mounting with Phenolic, Epoxy or Diallyl Phthalate compression mounting resins

POLISHING
Abrasive/surface Lubricant Force/ sample Speed
(Head/base)
Time Individual
Force mode
Central Force
mode
120 grit SiC paper*
240 grit SiC paper*
Water 5-10 lbs 200/200 rpm Planar
1 min
  Metallographic central polishing force
360 grit SiC paper
600 grit SiC paper
Water 5-10 lbs 200/200 rpm 1 min
1 min
Metallographic individual polishing force Metallographic central polishing force
9 um DIAMAT diamond
on POLYPAD polishing pad
DIALUBE Purple
Extender
5 lbs 200/200 rpm 3 min Metallographic individual polishing force Metallographic central polishing force
6 um DIAMAT diamond
on TEXPAN polishing pad
DIALUBE Purple
Extender
5 lbs 200/200 rpm 3 min Metallographic individual polishing force Metallographic central polishing force
1 um DIAMAT diamond
on GOLDPAD polishing pad
DIALUBE Purple
Extender
5-10 lbs 200/200 rpm 2 min Metallographic individual polishing force Metallographic central polishing force
0.05 um Nanometer alumina
on NAPPAD polishing pad
  5-10 lbs 200/200 rpm 30 sec Metallographic individual polishing force Metallographic central polishing force

*Required for central polishing force. Click here for more information on central vs. individual polishing force polishing.

Metallographic micrograph of Inconnel
Inconel, Mag. 500X, Etchant-Carpenters-few seconds

ETCHING

Common Etchants
PACE Technologies Recommended Etchants

PACE Technologies Etchant Database

CAUTION:Safety is very important when etching. Be sure to wear the appropriate protective clothing and observe all WARNINGS on chemical manufacuters SDS (Safety Data Sheets). Also review the COMMENTS and CONDITIONS Section for each etchant.


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