Effect of Magnetism on Short-Range Order Formation in Fe-Si and Fe-Al Alloys
Short-range order formation in dilute Fe-Si and Fe-Al alloys has been investigated by statistical Monte Carlo simulations with effective interactions deduced from first principles calculations for different magnetic structures of bcc Fe. We find that the variation of the magnetic order from ferromagnetic to paramagnetic leads to significant changes in effective cluster interactions and, as follow, in short-range order parameters of alloys. It is shown in agreement with experiment the B2 type short-range order is formed above the Curie temperature, TC, while the D03 type short-range order is preferred below TC.
Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson
O. I. Gorbatov et al., "Effect of Magnetism on Short-Range Order Formation in Fe-Si and Fe-Al Alloys", Solid State Phenomena, Vols. 172-174, pp. 618-623, 2011