| Title | By | Posted On |
| Porosity in aluminum |
rookie 1 |
11/16/2009 |
| We are trying to find a way to identify porosity in aluminum. I know aluminum casting has a reflective problems and high emissivity (if I have this correct lol). In taking a few pictures we think that we can see indications of porosity. Any help would be appreciated. |
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| Re:Porosity in aluminum |
jvoitl |
11/16/2009 |
| How about posting a few pictures. Also aluminum has a very low emissivity, depending on the finish. |
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| Re:Porosity in aluminum |
rookie 1 |
11/16/2009 |
jvoitl wrote:
ut posting a few pictures. Also aluminum has a very low emissivity, depending on the finish. having trouble posting pictures becuase to large |
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| Re:Porosity in aluminum |
rookie 1 |
11/16/2009 |
rookie 1 wrote:
having trouble posting pictures becuase to large https://share.acrobat.com/adc/document.do?docid=3a4d7b6c-225d-49ed-ac26-1cea560616cb this a Webb site with pictures |
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| Re:Porosity in aluminum |
TDLIR |
11/18/2009 |
The best way to find surface porosity in aluminum would be to use a Fluorescent Liquid Penetrant Test Also know as dye penetrant.
For internal porosity, you should go with Radiography.
I do not think IR will help you here. You may be able to find gross porosity with IR, but then again, this type of porosity will be seen visually. The very small micro prosity will probably not show due to imager Resolution and sensitivity issues.
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| Re:Porosity in aluminum |
ndtcdn |
12/4/2009 |
TDLIR wrote:
t way to find surface porosity in aluminum would be to use a Fluorescent Liquid Penetrant Test Also know as dye penetrant.
For internal porosity, you should go with Radiography.
I do not think IR will help you here. You may be able to find gross porosity with IR, but then again, this type of porosity will be seen visually. The very small micro prosity will probably not show due to imager Resolution and sensitivity issues.
To actually see the porosity in alumimum casting, the best results can be achieved with portable X-Ray equipment. We have yet to purchase this equipment, however I believe it could be an asset to a true Non-Destructive Testing program.
http://www.vidisco.com/Casting.asp
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| Re:Porosity in aluminum |
thermalbb |
12/4/2009 |
ndtcdn wrote:To actually see the porosity in alumimum casting, the best results can be achieved with portable X-Ray equipment. We have yet to purchase this equipment, however I believe it could be an asset to a true Non-Destructive Testing program.
http://www.vidisco.com/Casting.asp
Thanks for the information> I appreciate the help. |
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| Re:Porosity in aluminum |
thermalbb |
12/4/2009 |
TDLIR wrote:
t way to find surface porosity in aluminum would be to use a Fluorescent Liquid Penetrant Test Also know as dye penetrant.
For internal porosity, you should go with Radiography.
I do not think IR will help you here. You may be able to find gross porosity with IR, but then again, this type of porosity will be seen visually. The very small micro prosity will probably not show due to imager Resolution and sensitivity issues.
Thanks for the information> I appreciate the help |
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| Re:Porosity in aluminum |
thermalbb |
12/4/2009 |
TDLIR wrote:
t way to find surface porosity in aluminum would be to use a Fluorescent Liquid Penetrant Test Also know as dye penetrant.
For internal porosity, you should go with Radiography.
I do not think IR will help you here. You may be able to find gross porosity with IR, but then again, this type of porosity will be seen visually. The very small micro prosity will probably not show due to imager Resolution and sensitivity issues.
Thanks for the information> I appreciate the help |
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