Magnetostrictive properties of steel

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The discussion centers on the magnetostrictive properties of bright mild steel, specifically C1018 with a carbon content of 0.15. The main inquiry is about the elongation versus magnetic field strength curve for this material, as the user is unable to find relevant data. This research is part of an engineering thesis focused on pulse-echo thermometry, where a pulse will be sent down a 2-meter steel rod using a coil, and the echoed pulse will be detected by another coil. Additionally, a reference is made to the use of thin magnetostrictive wires in high-energy physics applications, highlighting their ability to achieve approximately 1 mm position resolution through the timing of magnetostriction pulses. The discussion emphasizes the need for specific data on the magnetostrictive behavior of mild steel in the context of engineering applications.
dondante
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Hi,

I'm looking for the magnetostrictive properties of bright mild steel (C = 0.15). I'm especially interested in its elongation vs magnetic field strength curve. I've been looking everywhere and can't seem to find any data.

Currently I'm busy with my engineering thesis on pulse-echo thermometry. I'm planning to send a pulse down a 2m steel rod (C1018) using a coil. The echoed pulse is picked up with a different coil.

I hope someone can help.

Cheers.
 
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We used to use thin magnetostrictive wires (< 1/16" dia) to read out high energy physics spark chambers with roughly 1 mm position resolution using the time delay of the magnetostriction pulse. See
http://adsabs.harvard.edu/abs/1966ihep.conf...29P
(This is a pay per view paper)
 

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