Magnetization measurements in circle-shaped samples of typical dynamo steel sheets

2015 ◽  
Vol 1 (6) ◽  
pp. 98-101 ◽  
Author(s):  
Adam WARZECHA
Keyword(s):  
Magnetization Measurements ◽  
Steel Sheets ◽  
Dynamo Steel

scholarly journals Calculations of magnetic field in dynamo sheets taking into account their texture

Open Physics ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 1034-1038
Author(s):  
Witold Mazgaj ◽  
Zbigniew Szular ◽  
Paweł Szczurek
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Measurements ◽  
Iron Particles ◽  
Easy Magnetization ◽  
Anisotropic Properties ◽  
Steel Sheets ◽  
The Given ◽  
Dynamo Steel ◽  
Magnetization Processes

Abstract Magnetic measurements have shown that the most dynamo steel sheets have certain anisotropic properties, which are due to the presence of textures in these sheets. These anisotropic properties have been taken into account usually in a simplified way assuming that iron particles of the dynamo sheets have only one axis of the easy magnetization. In the proposed approach, these particles are treated as grains which have three axes of the easy magnetization, and therefore the magnetization processes can be considered along each of these axes. These processes depend on the actual value and on the direction of the field strength and also on textures occurring in the given dynamo sheet. A method which allows calculations of the field distribution as a function of the assumed changes of external currents is described in this paper.

scholarly journals Influence of magnetic anisotropy on flux density changes in dynamo steel sheets

2015 ◽  
Vol 64 (1) ◽  
pp. 81-88
Author(s):  
Witold Mazgaj ◽  
Zbigniew Szular ◽  
Adam Warzecha
Keyword(s):  
Magnetic Anisotropy ◽  
Flux Density ◽  
Magnetic Measurements ◽  
Magnetic Flux Density ◽  
Anisotropic Properties ◽  
Steel Sheets ◽  
Rotational Magnetic Field ◽  
Grain Distribution ◽  
The Given ◽  
Dynamo Steel

Abstract Magnetic measurements, carried out by means of the Epstein frame, have shown that most typical dynamo steel sheets have certain anisotropic properties. In numerical analysis, anisotropic properties are taken into account with the use of the special function of the grain distribution in the given dynamo sheet. For engineering purposes, it is desirable to assess the influence of these properties on the changes of the magnetic flux density in typical dynamo steel sheets, especially during the rotational magnetization. For this purpose, measurements of the flux density changes and field strength changes in the circular-shaped samples of two selected typical dynamo sheets were performed. These measurements were carried out for several values of the current flowing in windings which generated the axial or rotational magnetic field in the test dynamo sheet. The influence of the magnetic anisotropy on the magnetization process was briefly discussed for both types of the magnetization processes.

Textures of dynamo steel sheets

2017 ◽  
Author(s):  
Agnieszka Banach ◽  
Witold Mazgaj ◽  
Zbigniew Szular ◽  
Pawel Szczurek ◽  
Janusz Zelechowski
Keyword(s):  
Steel Sheets ◽  
Dynamo Steel

Direct observation of Fe-Al-Zn ternary intermetallic compound and its transformation during the early stage of hot-dip galvanizing

1993 ◽  
Vol 51 ◽  
pp. 1116-1117
Author(s):  
C. S. Lin ◽  
W. A. Chiou ◽  
M. Meshii
Keyword(s):  
Intermetallic Compound ◽  
Reaction Rate ◽  
Diffusion Rate ◽  
Early Stage ◽  
Zinc Bath ◽  
Steel Sheets ◽  
Direct Observations ◽  
Solid Iron ◽  
Iron And Zinc ◽  
Ternary Intermetallic Compound

The galvannealed steel sheets have received ever increased attention because of their excellent post-painting corrosion resistance and good weldability. However, its powdering and flaking tendency during press forming processes strongly impairs its performance. In order to optimize the properties of galvanneal coatings, it is critical to control the reaction rate between solid iron and molten zinc.In commercial galvannealing line, aluminum is added to zinc bath to retard the diffusion rate between iron and zinc by the formation of a thin layer of Al intermetallic compound on the surface of steel at initial hot-dip galvanizing. However, the form of this compound and its transformation are still speculated. In this paper, we report the direct observations of this compound and its transformation.The specimens were prepared in a hot-dip simulator in which the steel was galvanized in the zinc bath containing 0.14 wt% of Al at a temperature of 480 °C for 5 seconds and was quenched by liquid nitrogen.

2D analysis of magnetic field strength in GO SiFe steel sheets

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-579-Pr2-582 ◽  
Author(s):  
S. Tumanski ◽  
M. Stabrowski
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Steel Sheets
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