Phase Transformation in Fe-Based Alloys in High Magnetic Fields

X.J. Hao; H. Ohtsuka

doi:10.4028/www.scientific.net/MSF.475-479.301

Paper Titles

Modeling and Numerical Calculation of Heat Transfer during Magnetic Field Quenching
p.285

Correlation of Yield Ratio with Materials Constants of Constitutive Equation
p.289

Experimental and Thermodynamic Modeling of the MnO-SiO₂-TiO₂-Ti₂O₃ System
p.293

Investigations on the Photoprotection Ability of TiO₂ Coated on Copper
p.297

Phase Transformation in Fe-Based Alloys in High Magnetic Fields
p.301

Variant Selection in Fcc-to-Bcc Precipitation at Grain Boundaries in Ni-43Cr Alloy
p.305

Analysis of Porosity Characteristics in Weld Metal of High Strength Aluminum Alloy and the Effect of Mixed Shielding Gas
p.309

The Behavior of AlTiC Master Alloys in Grain Refining of Commercial and High Pure Aluminum
p.313

The Investigation on Aluminium Alloys Automobile Wheel with Low-Titanium Content Produced by Electrolysis
p.317

HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Phase Transformation in Fe-Based Alloys in High...

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 temperature Ms in 18Ni maraging steel increases by 20°C. Ferrite grains are elongated and aligned along the direction of magnetic field in Fe-0.4C and Fe-0.6C alloys by ferritic transformation, but elongation was not found in pure Fe, Fe-0.05C alloy and Fe-1.5Mn-0.11C-0.1V alloy. Aligned structure was not found either by pearlitic transformation in Fe-0.8C alloy or by cementite precipitation from martensite.