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Magnetic field induced martensite

Magnetic field induced martensite

I am not a metallurgist, so please be easy with the terms. I have a question; is magnetic field induced martensite, and strain induced martensite, different terms for the same process?  Thanks,  Gerald

RE: Magnetic field induced martensite

Whoa!! Heavy stuff but I think they answer your question.
It appears that they are not the same, the magnetic field induced transformation seems to be a reversible phenomenon in some shape memory alloys and only exists while the field is applied.Stain induced transformation is however not reversible and can occur in more conventional alloys.

RE: Magnetic field induced martensite

As a side note to magnetic fields, I found this interesting technical presentation by our friends at Oak Ridge on the topic of "Ultrahigh Magnetic Field Processing of Materials for Developing Customized Microstructures and Enhanced Performance"

RE: Magnetic field induced martensite

Much obliged, metenger!

I just discovered this topic, so I have a lot of reading to do.  Thanks again,  Jerry

RE: Magnetic field induced martensite

As meteng pointed out, there can be a transformation from austenite to martensite induced by applying a magnetic field which reverses with the removal of the field. The strain induced transformation requires significant plastic deformation and remains after the stress which imposed the strain is removed.

RE: Magnetic field induced martensite

I learnt something new. Though this was vaguely  in my memory that one transformation is reversible while the other is not. Great posting and equally good responses.

RE: Magnetic field induced martensite


For more reading on the subject, the following link gives some practial applications of strain induced martensite:


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