The Truth About Corrosion Resistance In Different Permanent Magnets

Corrosion is one of the major problems for any permanent magnet. It can demagnetize the magnet and make it not function as effectively. CORROSION RESISTANCE There is a common misconception regarding corrosion resistance between permanent magnet types." Here at Dura, we aim to debunk the myth and explain which type of magnetic material is best for your application.

Investigating some factors affecting corrosion resistance of permanent magnets

Corrosion is the result of a material reacting with its environment. Moisture, temperature and chemicals can cause a magnet to corrode. The type of material the magnet is made of is also a big factor in its corrosion resistance. Some magnets are coated in special coatings that are corrosion resistant.

Corrosion resistant neodymium, samarium cobalt, and alnico magnets, and method for producing same

Neodymium magnets are incredibly strong, and they are also very susceptible to corrosion. They must be protected by some impervious covering, to shield them from this ignoble decay. Samarium cobalt magnets withstand higher temperatures and are less susceptible to corrosion than neodymium magnets. They are able to withstand higher temperatures and tougher environments. Alnico magnets offer the best corrosion resistance of the three. These are constructed of aluminum/nickel/cobalt, so they are quite tough.

Effects of various environments on permanent magnets Drain the corrosion detector.

Magnets can corrode more quickly in some environments. Magnets near the ocean, or kept in damp places, are more vulnerable to corrosion than magnets in dry locales. Corrosion can also be produced by chemicals such as acids and Alkalies. The kind of magnet should be selected for the environment it will be placed in.

how to take care of permanent magnets.

Permanent magnets should be covered with a protective material, and it may be coated with a thin layer of nickel or epoxy to prevent corrosion. This layer is serving as a shield between the magnet and its surroundings. It may also be helpful to clean and maintain it on regular basis to avoid corrosion. If you keep them dry and store them well, they should last a long time.

Myth busting of corrosion resistance in various permanent magnets

A widely held misconception is that all magnets are equally rust proof. This is not true. Some magnets are more easily corroded than others. Another myth – that as soon as a metal magnet begins to corrode it loses any value. Even magnets that are so far gone that they have had the metal partially corroded away can still be used. To help ensure they last a long time, it’s worth knowing the facts when it comes to corrosion resistance in permanent magnets.

Finally, for both oxide- and RE-rich solid solutions as well as hard/bonded magnets with good corrosion resistance , knowing the parameters of the corrosion resistance of magnets is important in choosing the right magnet for your application. There are a variety of Qiangsheng magnets, which have different corrosion resistance in all of them. s Key] SEE ALSO: How wet and dirty magnets work when everything else fails If you take care of them and select the right type for your surroundings, you could have magnets that last and work for years. Also, don't forget about those shielded magnets which need to be maintained to avoid rust, don't fall for the hype of their corrosion resistance.