Sima Mirzaei

Materials Research Center, Technology Development Institute, Sharif Branch of ACECR, Tehran, Iran

[ 1 ] - Effect of Heat Treatment Time on the Characteristics of Coating Formed on Nanocrystalline Finemet Foils

In the present research, amorphous Fe73.5Si13.5B9Nb3Cu1 Finemet foils, 21-26µm in thickness and 5mm in width, were prepared by Planar Flow Casting (PFC) process. Wound cores of amorphous Finemet foils were simultaneously annealed and heat treated at 540°C for 60, 120 and 240 minutes in steam and air flow to form oxide insulating coating layer on both surfaces of the foils. The structure of nano...

[ 3 ] - بررسی سینتیک نانو تبلور نوارهای نرم مغناطیس FINEMET در شرایط غیرهمدما

The soft magnetic nanocrystalline Fe73.5Si13.5B9Cu1Nb3 alloy (FINEMET®) is produced by heat treatment of amorphous precursor. Determining kinetic parameters of amorphous structure transformation to nanocrystalline allows the control of microstructure (e.g. size and volume fraction of nanocrystalline grains) in order to achieve desired soft magnetic properties by optimizing the heat treatment co...

[ 4 ] - Effect of bonding temperature on the microstructure and electrochemical corrosion behavior of TLP ‎bonded AISI 304L stainless steel

Transient liquid phase (TLP) bonding of AISI 304L stainless steel was carried out using BNi-2 amorphous interlayer. The microstructure of the joint area was studied by using optical and scanning electron microscopes and energy dispersive spectroscopy. The effect of bonding temperature (1030-1110 °C) was studied on the microstructure and corrosion behavior of the TLP bonded samples. Electrochemi...

[ 5 ] - Effect of bonding temperature on the microstructure and electrochemical corrosion behavior of TLP ‎bonded AISI 304L stainless steel

Transient liquid phase (TLP) bonding of AISI 304L stainless steel was carried out using BNi-2 amorphous interlayer. The microstructure of the joint area was studied by using optical and scanning electron microscopes and energy dispersive spectroscopy. The effect of bonding temperature (1030-1110 °C) was studied on the microstructure and corrosion behavior of the TLP bonded samples. Electrochemi...