Martensitic Magnetomechanical Measurements

Results of Applied Stress Experiments

The follow graphs show the strain vs. field curves for specimens CS1-1 and CS2-1 at loads of 1, 3, and 5 MPa. The tables show the calculated value of initial rotation q prior to variant rearrangement (calculated from the expression on the previous page using volume fraction k derived from the initial strain).

For specimen CS1-1, the initial plateau region increases with applied load as expected, and the total induced strain decreases.

Similar results for specimen CS2-1, however the induced strains are smaller in general compared to CS1-1.

Specimen CS3-1 showed very little induced strain, and was only tested to 3 MPa as it had hit its blocking stress at that point. The small strains make any trends here difficult to spot.

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Magnetomechanical pages:

Martensitic Magnetomechanical Measurements
Magnetomechanical Testing Equipment
Shape and Applied Stress Effects
Results of Shape Effect Experiments
Bias Stress Experiments

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Ferromagnetic Shape Memory in Ni₂MnGa
Austenitic Anisotropy Measurements
Austenitic Magnetostriction Measurements
Martensitic Anisotropy Measurements
Martensitic Magnetostriction Measurements

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