Glass forming ability and soft-magnetic properties of Fe-based glassy alloys developed using high phosphorous pig Iron

Murugaiyan, Premkumar and Mitra, Amitava and Roy, Rajat K and Bijalwan, P K and Dutta, Monojit and Banerjee, Atanu and Panda, A K (2020) Glass forming ability and soft-magnetic properties of Fe-based glassy alloys developed using high phosphorous pig Iron. Journal of Alloys and Compounds, 821 (4.175).

[img]PDF - Published Version
1631Kb

Abstract

Glass forming ability (GFA) and soft-magnetic behaviour of melt-spun Fe69C5.5P11.5Mn0.4Si2.3Cr1.8Mo1B8.5 (alloy 2) and Fe68C9P12Mn1Si3Nb2B5, (alloy 3) alloys prepared using high phosphorous pig iron (h-PI, Fe80C14P2.2Mn0.4Si3.4) has been studied. The glass formation, thermo-physical and soft-magnetic properties of the alloys were analyzed for different quenching rates by varying wheel speed as 23, 26, 33, 39 and 43 m/s. The simultaneous incorporation of alloying elements (Cr, Mo, Nb) and metalloids (C, B, P, Si) transforms h-PI to complete glassy alloy, even at low quenching rates. The melt quenching rate influences the thermal parameters and Curie temperature of glassy ribbons in an opposite way. Amongst all, FeCPMnSiCrMoB glassy alloy show superior combination of higher glass transition temperature of 788 K, super cooled region of 34 K, glass Curie temperature of 552 K, coercivity less than 13 A/m and maximum saturation magnetization of 1.1 T. In addition, the annealing treatment at 758 K improves magnetic softness (1.7 A/m) of the alloy by relaxation of quenched-in stresses. The comparison of developed glassy alloy with similar Fe-glassy alloys and SENNTIX type alloys show best combination of thermo-physical and magnetic properties. The glassy alloy prepared using blast furnace high phosphorous pig iron can be used for uniformly gapped soft-magnetic cores.

Item Type:Article
Official URL/DOI:https://doi.org/10.1016/j.jallcom.2019.153255
Uncontrolled Keywords:Rapid solidification Fe-based bulk metallic glass Soft-magnetic alloy Magnetization Thermal analysis
Divisions:Material Science and Technology
ID Code:8107
Deposited By:Mr. Premkumar M
Deposited On:19 Feb 2020 08:52
Last Modified:19 Feb 2020 08:52

Repository Staff Only: item control page