Corrosion process was electrochemistry between

metal and environmental cause damaged

to structure, device, equipment. 

 In the environmental had salt of sodium chloride ionization to Chloride ion (Cl^-) then these Chloride ions destroy the oxide layer that metal area will be anode and found small pitting call this corrosion was Pitting will fast growth and specific area into metal layer.

For environmental testing for salt spray (Sodium chloride solution)

for check the metallic or nonmetallic part tolerance

to salt solution refer standard method of

ASTM B 117

JIZ Z 2371 

MIL-STD-202G-101

or client requirement

ALS also analyse the salt mist cyclic test refer IEC 60068-2-52:2017

After load into the salt spray chamber,

ALS perform inspection by digital camera,

optical microscope or Scanning Electron Microscope (SEM)

upon the size of sample and resolution as client requirement.

Further that ALS can perform cross section on the interested areas for examination and evaluation of pitting corrosion refer ASTM G46-21.