An intergranular corrosion test for stainless steels. The specimen is placed in boiling copper-copper-sulfate-sulfuric acid for 24 hours, after which it is bent to expose any surface intergranular attack. This test is often preferred over the Huey test because it requires much less time.
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Stop to notice the technology - by Dan Davis Keeping your nose to the grindstone could prevent you from noticing the rapid changes occurring in the world around you.
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