Spilled mercury on aluminium
- increases susceptibility to hydrogen embrittlement
- may cause impaired corrosion resistance if left in prolonged contact.
- causes rapid and severe corrosion in prolonged contact.
Explanation from PART66Online
Mercury amalgamates with aluminium and breaks down its protective oxide film, so prolonged contact impairs corrosion resistance and can lead to attack. The wording here describes a gradual effect rather than instant severe corrosion, and the spill does not act through hydrogen embrittlement.
C
cpster asked · 29 Jan 2014
Why not the third option is correct ???
Community Comments (3)
P
PART66Online
31 Jan 2014
Actually both answers can be correct.
If you selected third one, you are also correct.
If you selected third one, you are also correct.
R
rwm1273
5 Oct 2016
The FAA consider mercury to be a cause of hydrogen embritlement.
D
Diverdeep
14 Mar 2023
cause degradation of the structure. the only thing sure is that this statement can't be true (may cause impaired corrosion resistance if left in prolonged contact) because mercury can't increase (cause corrosion resistance) if in contact with alu or alu alloy. see: youtu.be/IrdYueB9pY4
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