Magnet Behaviors

[James08]

If a ferrous material is magnetized using a solenoid, would the magnetic strength of the material fluctuates over the next few hours? How long would it take for the magnetic strength of the material be stabilized?

 

[israelkk]

It may be better to post this question in the "Magnetic engineering" forum. Where is the fluctuating come from? the ferrous metal may have a residual magnetism depends on the metal but I have no knowledge of fluctuations.

 

[EdStainless]

I assume that you are not doing anything to the material, it is just sitting there.
The field levels around it should stabilize very quickly. Maybe a few seconds at the most.
Sometimes you can measure changes over the course of a few minutes, but I believe that most of those are related to temperature effects. If you warm the metal during magnetization then it will take a while to cool.

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Corrosion never sleeps, but it can be managed.

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