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Ask The ExpertsMetallography Forum |
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(Metallographic sample preparation and etching to reveal microstructure only)
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Ask The ExpertsMetallography Forum |
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(Metallographic sample preparation and etching to reveal microstructure only)
I have a sample consisting of a 3/16" thick copper strip bolted to an aluminum fitting via a steel nut and threaded stud, and am trying to evaluate the interface between the copper and aluminum.
Thanks in advance for any recommendations.
- Brad 01/05/12 (1)Wondering if anyone has a good solution for etching Nitinol for the purposes of surface temper inspection. Prefer something room temperature or achievable with typical refrigerator/hot plate temperatures.
Regards
- Ralph Brooks 12/27/11 (0)I need to do metallography of a Bush made of Fe 410 WA / 11C10 S25 S5 material. Pls suggest me an etchant to reveal sulphides if present at grain boundaries.
Thanks
- Mithun 11/22/11 (1)Thanks
- Don Norsworthy 11/17/11 (3)I'm working with Ti-6AL-4V alloy and try to prepare cross section of titanium sheet for EBSD texture analysis. At the step за final polishing with colloidal silica I'm realise that sample dramatically etched. All trials with reducing of concentration of silica (mixture with water) doesn't give any effect. I'll be very appreciate if any one can give some advice.
- Evgenia Yakushina 11/02/11 (1)I wanted to ask if anyone has experience on the cleaning of steel samples for control inclusions.
I explain, I do these controls with automatic Struers polishing, stone + cloth 15 micron + 3 microns + 1 micron, as you well know the problem is to clean with water and suspension water based.
can someone explain how the water interacts with inclusions?
does anyone know a way to clean the samples without water, perhaps for use with automatic machines?
Thanks
I looking for an etchant to reveal niobium carbides in AISI 347 stainless steel. Could someone give me some characteristic (morphology, color, etc.) of this precipitates in order to distinguish them from others carbides.
Thank you in advance.
http://i1002.photobucket.com/albums/af148/otelo1/Grano.jpg
- Gail RC 10/09/11 (2)I'm working in my PhD Thesis with some samples of Interstitial Free Steel severely deformed. I need to prepare them to be analyzed via EBSD. The problem is: When I try to final polish them, colloidal silica causes relief on the surface. I've tried various types of concentration using silica, but the result is always the same: I can not reach a suitable surface for analysis via EBSD. I don't understand what is happening.
Could you help me?
Thanks
- Janet 08/18/11 (3)Best Regards;
Nima Movahedi
Thank you
- Ameen 06/13/11 (1)I need help regarding in choosing a good etchant for 254 SMO.
Any suggestions?
I have a mounted specimen that are etched.
I need to make a calculation/estimation of the amount of ferrite in the sample.
How do I do a simple analysis?
Thank you
- Per Larsson 05/19/11 (5)i would like to create a network of etching pits in a duplex Ti-6Al-4V alloy.
This procedure does intend to relate the morphology of pits with local crystalline orientation but simply to create a network of pits as dense and with pits small as possible.
Would anyone have any suggestion of etchant and etching conditions ?
Regards,
Florent B.
- Florent B. 03/14/11 (3)Could you suggest a suitable electrolyte for electropolishing commercially pure Mg? What would be the voltage, temperature, time values for preparation of TEM & EBSD specimens? Could you suggest a good source to find out more about these?
Thanks in advance!
Neha
- Neha 03/09/11 (9)Does anyone have photos of the microstructure? Any site that I can see?
Thanks in advance,
Daniel Falleiros - Brazil
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