Search results
Results from the WOW.Com Content Network
Bronze disease is an irreversible and nearly inexorable corrosion process that occurs when chlorides come into contact with bronze or other copper-bearing alloys. [1] It can occur as both a dark green coating, or as a much lighter whitish fuzzy or furry green coating. [1]
The salt spray test (or salt fog test) is a standardized and popular corrosion test method, used to check corrosion resistance of materials and surface coatings.Usually, the materials to be tested are metallic (although stone, ceramics, and polymers may also be tested) and finished with a surface coating which is intended to provide a degree of corrosion protection to the underlying metal.
Protective elements for bronze fountains are particularly important, since water is one of the leading causes for alterations or corrosion in a bronze. [2] Bronze sculptures incorporated in fountains will need more layers of wax, because the spray of water will cause deterioration of the wax at a faster pace than would normally happen.
Various treatments are used to slow corrosion damage to metallic objects which are exposed to the weather, salt water, acids, or other hostile environments. Some unprotected metallic alloys are extremely vulnerable to corrosion, such as those used in neodymium magnets , which can spall or crumble into powder even in dry, temperature-stable ...
Marinised metals include some of the following: . Non-corrosive alloys that resist or are impervious to salt-water corrosion, e.g. 316 marine grade stainless steel; brass (an alloy of copper and zinc), or bronze (which contains copper with tin in place of zinc).
The removal of corrosion over the glass surface may significantly reduce the thickness of the walls and weaken it significantly. The removal of surface corrosion can also make the surface blur and/or alter surface details. The corrosion layers on the glass may be part of the object's history and should not be removed without good reasons. [10]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Proper handling, storage, and treatment can help prevent deterioration of silver objects. [3] Metals are best conserved when stored in an even and low humidity atmosphere, ideally at 40% relative humidity or lower. [5] Silver tends to corrode easily when stored in damp, moist locations such as a basement because it will accelerate tarnishing.