Heat Treated High Carbon Steel
Specimen Preparation (Class 8 Procedures)
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Preparation of high carbon steels is fairly straight forward. Depending upon the heat treatment the grinding and polishing times may increase for the harder martensite structure.
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 |
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| 360 grit SiC paper 600 grit SiC paper |
Water | 5-10 lbs | 200/200 rpm | 1 min 1 min |
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| 9 um DIAMAT diamond on POLYPAD polishing pad |
DIALUBE Purple Extender |
5 lbs | 200/200 rpm | 3 min | |
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| 3 um DIAMAT diamond on TEXPAN polishing pad |
DIALUBE Purple Extender |
5 lbs | 200/200 rpm | 3 min | |
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| 1 um DIAMAT diamond on GOLDPAD polishing pad |
DIALUBE Purple Extender |
5-10 lbs | 200/200 rpm | 2 min | |
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| 0.05 um Nanometer alumina on MICROPAD polishing pad |
5 lbs | 100/100 rpm | 30 sec | |
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*Required for central polishing force. Click here for more information on central vs. individual polishing force polishing.
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| 1095 Steel, Furnace Cooled, etched with 2% nital, 400X B.F. Pearlite structure |
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| 1095 Steel, Water Quenched, etched with picric acid, 1000X B.F. Martensite structure |
ETCHING
Common Etchants
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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