Microstructural Evolution and Nanocrystalline Formation Kinetics in FeCo Based Alloys During Mechanical Alloying

Abstract

Mechanical alloying (MA) is a widely used processing technique to prepare metastable or nanophase materials in a cost effective fashion. In this study, mechanically alloying FeCo based nanomagnetic alloys was included. Scanning electron microscope (SEM), X-ray diffractometer (XRD), transmission electron microscope (TEM), vibrating sample magnetometer (VSM) were used to characterize the as milled powders. The effect of additional elements P and B on the powder size, microstructures and magnetic properties is discussed. It showed that the addition of P and B could reduce the powder size more effectively. The addition of elements P and B during MA of FeCo magnetic alloy also led to the formation of spherical nanocrystallines instead of banded microstructures in MA FeCo without these additions.

Synthesis of Air Stable FeCo/C Alloy Nanoparticles by Decomposing a Mixture of the Corresponding Metal-Acetyl Acetonates under Their Autogenic Pressure

“…The Kratschmer-Huffman carbon arc method 8 was used by McHenry's group. Mechanical alloying 18 and a high temperature reduction 19 were also used in the synthesis of the Fe/Co alloy. Several reports on the formation of core/ shell nanostructures of transition metals have already been published.…”

“…The Kratschmer−Huffman carbon arc method was used by McHenry’s group. Mechanical alloying and a high temperature reduction were also used in the synthesis of the Fe/Co alloy. Several reports on the formation of core/shell nanostructures of transition metals have already been published. , For example, the RAPET of cobalt acetate or nickel acetate, nickel acetyl acetonate has led to a Co/C or Ni/C core/shell nanostructure, respectively.…”

The Effect of the Ball Size on the Product Characteristics of Shaker HEBM to Produce Nano Particle from Bamboo Charcoal

“…Examples of research in preparing nanostructured material using HEBM can be seen in [2] to [6]. H.F. Li and Ramanujan [2], studied the microstructure evolution and formation of nanocrystal line FeCo based alloys by mechanical alloying.…”

“…H.F. Li and Ramanujan [2], studied the microstructure evolution and formation of nanocrystal line FeCo based alloys by mechanical alloying. S.R.…”