On the Principles of the Additive Technology Implementation of Composite Magnetic Coating’s Formation on Non-Magnetic Substrates by Laser Welding of Micro Powders

The article discusses the formation of coatings with magnetic properties on non-magnetic substrates by the method of additive technology of metal powders using high power pulsed laser radiation. An instrumental base for the development of methods for creating local magnetic zones of a given configuration has been described. Approaches to create methods of additive welding of solid solution magnetic zones on the basis of micro-powders of metal alloys have been developed. The coatings with soft magnetic properties on the basis of powders of bronze and iron-containing "Inconel" alloy on non-magnetic substrates were obtained by laser welding. The structural inhomogeneity at the interface of the substrate and the solid solution were studied. Data on hardness and magnetic properties were obtained for formed magnetically soft materials.

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Magnetic Anisotropy of Nanocrystalline HITPERM-Type Alloys and its Correlation with Application

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.154.169 ◽

2009 ◽

Vol 154 ◽

pp. 169-173

Author(s):

Jarosław Ferenc ◽

Maciej Kowalczyk ◽

Tatiana Erenc-Sędziak ◽

Xiu Bing Liang ◽

Gabriel Vlasák ◽

...

Keyword(s):

Soft Materials ◽

Process Selection ◽

Soft Magnetic ◽

Predominant Role ◽

Magnetoelastic Anisotropy ◽

Magnetic Cores ◽

Magnetoelastic Properties ◽

Crystallisation Process ◽

Magnetically Soft Materials ◽

Magnetic Hardening

Structure as well as magnetic and magnetoelastic properties of nanocrystalline (Fe,Co)-(Hf,Zr)-Cu-B alloys (HITPERM-type) were investigated in order to find out which factors are responsible for the magnetic hardening of these magnetically soft materials. Magnetoelastic anisotropy, caused by the presence of cobalt, was found to play the predominant role in the observed increase of coercive field. On this basis, guidelines on chemical composition and crystallisation process selection were suggested for two fields of application: soft magnetic cores and sensors or actuators cores.

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The Portable Measurement Instrument of Dynamic Magnetic Properties for the Soft Magnetic Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1004-1005.1321 ◽

2014 ◽

Vol 1004-1005 ◽

pp. 1321-1324

Author(s):

Rui Fen Hou ◽

Wen Fan ◽

Zhi Gao Zhang ◽

Wen Jie Gong ◽

An Li Lin

Keyword(s):

Magnetic Properties ◽

Magnetic Materials ◽

Sampling Method ◽

Measurement Instrument ◽

Soft Materials ◽

Soft Magnetic Materials ◽

Soft Magnetic ◽

Measurement Results ◽

Different Types ◽

Measurement Principle

The portable measurement instrument is designed and built to measure the dynamic magnetic properties of the soft magnetic materials. The measurement principle and sampling method are presented. The study shows the instrument can measure the different types of soft materials accurately at frequencies in the range of 20 Hz – 200 kHz. The standard deviations of the specific total loss (Ps) and amplitude permeability (μa) are less than 0.3%. The errors ofPsanduaare not larger than 0.3% between the measurement results of the instrument and the standard measurement device of National Institute of Metrology (NIM) of China NIM.

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Automatic testing of the magnetic properties of magnetically soft materials and products

Measurement Techniques ◽

10.1007/bf00977092 ◽

1966 ◽

Vol 9 (2) ◽

pp. 154-160

Author(s):

M. A. Babikov ◽

Yu. V. Seleznev

Keyword(s):

Magnetic Properties ◽

Soft Materials ◽

Automatic Testing ◽

Magnetically Soft Materials

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Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100105916 ◽

1988 ◽

Vol 46 ◽

pp. 770-771

Author(s):

June D. Kim

Keyword(s):

Electron Microscopy ◽

Magnetic Properties ◽

Ternary Phase Diagram ◽

Vertical Tube ◽

Vacuum Induction Melting ◽

Induction Melting ◽

Soft Magnetic ◽

Quenching Temperature ◽

Thin Foils ◽

Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

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