YASELINE professional engineers will explain to us the types of salt spray corrosion that are common in life:
(1) General surface corrosion: The material is uniformly removed from the contact surface of the entire material eroding medium. This is a very common type of corrosion. Common corrosion phenomena are flaky corrosion and planar corrosion.
(2) Crevice Corrosion: Corrosion mainly occurring at narrow slits due to a difference in concentration in corrosive media, such as a long oxygen diffusion channel. This type of corrosion creates a potential difference between the ends of the gap, resulting in increased corrosion in poorly ventilated areas.
(3) Pitting corrosion, commonly known as pitting corrosion: the erosion of a finite medium by a corrosive medium that penetrates into a material to form a hole or pit whose depth is almost always greater than its diameter. In fact no metal is removed from the surface outside the pitting zone. Pitting corrosion is often caused by halide ions.
(4) Loss of light: The gloss of the surface of the object becomes small.
(5) Dezincification: Zinc is selectively dissolved from brass to leave a porous copper structure. The nickel removal and dealumination processes are similar.
(6) Rust: Forms ferrous iron oxide and hydroxide corrosion products on iron and steel.
The equipment for professional simulation of salt spray test is salt spray corrosion test chamber, the industry's top brand Yashilin instrument.
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