When examining a piece of metal through a magnifying glass, hair line cracks would indicate
- crevice corrosion.
- intergrannular corrosion.
- surface corrosion.
Explanation from PART66Online
Fine hairline cracks seen under magnification indicate intergranular corrosion, where attack follows the grain boundaries and opens them up into thread-like cracks. Surface corrosion shows as general roughening and crevice corrosion as localised attack in joints, neither of which presents as hairline cracking.
M
manin asked · 1 Jun 2013
r u sure about the answer or could it be :surface corrosion'
Community Comments (1)
T
trap2307
1 Jun 2013
Hello!
In this question, the key words is "line cracks".
Just look at the picture - en.wikipedia.org/wiki/Intergranular_c...
Hair line cracks are not peculiar to surface corrosion...
In this question, the key words is "line cracks".
Just look at the picture - en.wikipedia.org/wiki/Intergranular_c...
Hair line cracks are not peculiar to surface corrosion...
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