2005
DOI: 10.4028/www.scientific.net/msf.475-479.301
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Phase Transformation in Fe-Based Alloys in High Magnetic Fields

Abstract: The effects of a high magnetic field on phase transformation behaviors and microstructures in Fe-based alloys have been extensively studied. It was found that a magnetic field accelerates ferritic and martensitic transformation, changes the morphology of the transformed microstructures and increases the A3 and A1 temperature. In a magnetic field of 10 Tesla, the A1 temperature increases by about 15°C for Fe-0.8C, the A3 temperature for pure Fe increases by about 8°C and the martensitic transformation temperatu… Show more

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“…"Magnetic Shape Memory Alloys with High Actuation Force" The second possible mechanism to induce large MFIS is the magnetic field-induced phase transformation (Figure 1.b). The field-induced martensitic phase transformation has been detected in several ferromagnetic materials such as Fe-C and Fe-Ni in the past [22][23][24][25], under very high field magnitudes (>15 Tesla) without any report of observed MFIS levels. Certain FeNi-Co-Ti alloys demonstrated reversible martensitic transformation but only under the application of a high pulsed magnetic field (~30 Tesla) [22].…”
Section: Statement Of the Problem Studiedmentioning
confidence: 99%
“…"Magnetic Shape Memory Alloys with High Actuation Force" The second possible mechanism to induce large MFIS is the magnetic field-induced phase transformation (Figure 1.b). The field-induced martensitic phase transformation has been detected in several ferromagnetic materials such as Fe-C and Fe-Ni in the past [22][23][24][25], under very high field magnitudes (>15 Tesla) without any report of observed MFIS levels. Certain FeNi-Co-Ti alloys demonstrated reversible martensitic transformation but only under the application of a high pulsed magnetic field (~30 Tesla) [22].…”
Section: Statement Of the Problem Studiedmentioning
confidence: 99%