scratch hardness test
03-20-2011, 09:31 AM
|scratch hardness test
We spray abradable coatings (metco 307NS) for aeroplane engines. We perform scratch hardness test. So, what I need is to know, how can I check/ calibrate the scratch hardness tester. I don't have any scratch hardness standard test block, like in rockwell or vickers hardness standard test blocks. May be anyone knows.
03-22-2011, 03:52 PM
|RE: scratch hardness test
to the Surface Engineering Forum.
Sorry, I can't help with calibration test blocks. I know its difficult enough to find the Rockwell superficial HR-15Y calibration blocks for testing abradable coatings.
Have you tried asking the supplier/manufacturer of the scratch tester?
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