Precipitation Behavior and Magnetic Properties of Nano–Scale Particles in a Cu–Fe–Ni Alloy

Sung Kang; Mahoto Takeda; Zenji Hiroi; Masaki Takeguchi

doi:10.4028/www.scientific.net/MSF.654-656.2342

Paper Titles

Nucleation of Bainite on Allotriomorphic Ferrite/Austenite Interface in a Low Carbon Steel
p.2326

Precipitation Behavior in AL6XN Austenitic Stainless Steel
p.2330

The Study on the Nucleation Behaviours in IF Steel by 3-D EBSD Tomography
p.2334

Grain Boundary-Dependent Selection Criteria for Nucleation of Gamma-Massive Grains in TiAl-Based Alloys
p.2338

Precipitation Behavior and Magnetic Properties of Nano–Scale Particles in a Cu–Fe–Ni Alloy
p.2342

Coarsening Process of Decomposed Phases in Cu-Ni-Cr Alloys
p.2346

Grain Boundary Engineering and Alterations in Anisotropy of Interfacial Properties
p.2350

Texture Distribution and Development through the Thickness of Grain Oriented Silicon Steel
p.2354

Three Dimensional Microstructure Characterization of an Al-Zn-Mg Alloy Foam Using Synchrotron X-Ray Microtomography
p.2358

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Precipitation Behavior and Magnetic Properties of Nano–Scale Particles in a Cu–Fe–Ni Alloy

Abstract:

The precipitation behavior of nano–scale magnetic particles formed in a Cu–Fe–Ni alloy on isothermal annealing at 873K and 1073K have been investigated by means of transmission electron microscopy (TEM). Nano–scale magnetic particles were formed randomly in the Cu–rich matrix after receiving a short annealing due to phase decomposition in the alloy. With increasing the isothermal annealing time, however, the striking features that two or more nano–scale particles with a cubic shape and precipitates with a needle shape were aligned linearly along <100> directions were observed on isothermal annealing at 873K and 1073K, respectively. To investigate the relationship between microstructures and magnetic properties of precipitates in a Cu–Fe–Ni alloy were also carried out the superconducting quantum interference device (SQUID) magnetometer. The present study revealed that several significant influences to magnetic properties were induced during the precipitation process in this alloy.