There are factors that influence crevice corrosion. 1  These include: 2  The type of crevice: either metal to metal or metal to nonmetal. 3  The geometry of the crevice: including the size of the gap, its depth and the surface roughness. 4  The composition of the metal: the structure of the alloy composition and can be Cr, Mo, or others.
1 Allergies - Allergic reactions can lead to leaks in the subcutaneous capillary beds which can cause swelling in the face, including around the eyes.  Skin disorders - Eye puffiness can be a side effect of certain skin disorders, such as dermatitis, if the affected area becomes very sensitive, leading to swelling.
What Causes Ordinary Puffy Eyes and Dark Circles Under the Eyes? Ordinary swelling around the eyes means you have an excessive accumulation of fluids, called edema, in surrounding skin tissue. Because the skin around the eyes is the thinnest skin in the body, swelling and discoloration can be quite prominent.