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Inconel Etchant

Material Specific

Composition

100ml HCl, 100ml Ethanol, 5g CuClâ‚‚

Mixed

Method

Immersion

Time

30s

Alternative Names

Inconel Reagent

Tags

nickel-alloyinconelsuperalloy

Reveals

Grain boundaries, phases

Typical Results

Specifically for Inconel and nickel-based superalloys.

Color Effects

Grain boundaries dark

Compatible Materials

nickel-alloyinconelsuperalloy

Incompatible Materials

carbon-steelaluminum

Application Method

Method:immersion
Typical Time:30 seconds

Preparation Notes

Dissolve 5g CuClâ‚‚ in 100ml HCl, then add 100ml ethanol.

Application Notes

Immerse sample for 30-60 seconds. May require swabbing. Rinse with water and ethanol.

Troubleshooting

Works well on Inconel series alloys.

Storage Notes

Store in glass bottle. Shelf life: several months.

Alternative Etchants

  • Glyceregia
  • Kalling's No. 2

Similar Etchants

  • Glyceregia

ASTM References

ASTM E407