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Nickel Superalloy Specimen Preparation
(Class 6 Procedures)
Temperature and corrosion resistant materials such as Turbine Blade Superalloys are prepared mostly with standard metallographic techniques. However, the results can be significantly improved by using finely graded nanometer alpha alumina polishing solutions on a high napped polishing pad.
SECTIONING
Temperature and corrosion resistant materials such as Turbine Blade Superalloys are prepared mostly with standard metallographic techniques. However, the results can be significantly improved by using finely graded nanometer alpha alumina polishing solutions on a high napped polishing pad.MOUNTING
Compression Mounting with Phenolic, Epoxy or Diallyl Phthalate compression mounting resinsPOLISHING
Abrasive/surface |
Lubricant |
Force/ sample |
Speed |
Time |
Individual Force mode |
Central Force |
120 grit SiC paper* |
Water |
5-10 lbs |
200/200 rpm |
Until plane |
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360 grit SiC paper |
Water |
5-10 lbs |
200/200 rpm |
1 minute |
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9 um DIAMAT diamond on POLYPAD polishing pad |
DIALUBE Purple Extender |
5-10 lbs |
200/200 rpm |
2 minutes |
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6 um DIAMAT diamond on TEXPAN polsihing pad |
DIALUBE Purple Extender |
5-10 lbs |
200/200 rpm |
2 minutes |
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1 um DIAMAT diamond on GOLDPAD polishing pad |
DIALUBE Purple Extender |
5-10 lbs |
200/200 rpm |
2 minutes |
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0.05 um Nanometer alumina on NAPPAD polishing pad |
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5-10 lbs |
200/200 rpm |
30 seconds |
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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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Wrought nickel, 200X (BF), Etchant HCl and H2O2 |
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.
PACE TECHNOLOGIES CONTACT
PACE Technologies
3601 E. 34th St.
Tucson, Arizona 85713
+1-520-882-6598
FAX +1-520-882-6599
email: pace@metallographic.com
www.metallographic.com
Information Requests
Copyright 2006-2018
PACE Technologies ® -
3601 E. 34th St., Tucson, AZ 85713,
USA
Telephone +1 520-882-6598 FAX +1 520-882-6599
All Rights Reserved
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