Microdeformation Processes in Soft Magnetic Compounds

• Authors: R. Bidulský , J. Bidulská , P. Petroušek , A. Fedoriková , E. Dudrová , M. Actis Grande
• Languages of publication: EN

Abstracts

EN

Porosity can be defined in different ways. The most frequently used definition is the total porosity, which is the total volume fraction of empty space in the specimen. The presence of pores strongly affects the fracture mode. Besides the evaluation of geometry and quality of connections, fractographic analysis enables a quantification of the important microstructural characteristics of the plane porosity. This quantity allows to quantify the existing relations between microstructure and properties. The fractographic evaluation of the distribution of microdeformation processes in the volume of experimental material demonstrates the influence of porosity on the concentration of deformation flows into the microvolume of connections. Plain porosity contributes to the recognition of critical microstructural defects and therefore, to enable evaluating the relationship between the processing parameters, microstructural constituents, and pores. In the fractography evaluation, the analysis of the quality of interparticle bonding using determination of elementary types of fracture facets allows to interpret the mechanical and plastic properties of investigated materials.

Keywords

EN

75.50.-y; 81.20.Ev; 81.40.Np

Discipline

• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 75.50.-y: Studies of specific magnetic materials
• 81.40.Np: Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure(see also 62.20.M- Structural failure of materials)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 5
• Pages: 1367-1370

Dates

published

2017-05

Contributors

author

R. Bidulský

• Technical University of Košice, Faculty of Metallurgy, Institute of Materials, Letná 9, 042 00 Košice, Slovakia

author

J. Bidulská

• Technical University of Košice, Faculty of Metallurgy, Institute of Materials, Letná 9, 042 00 Košice, Slovakia

author

P. Petroušek

• Technical University of Košice, Faculty of Metallurgy, Institute of Materials, Letná 9, 042 00 Košice, Slovakia

author

A. Fedoriková

• Technical University of Košice, Faculty of Metallurgy, Institute of Materials, Letná 9, 042 00 Košice, Slovakia

author

E. Dudrová

• Institute of Materials Research, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia

author

M. Actis Grande

• Department of Applied Science and Technology, Politecnico di Torino, Viale Teresa Michel, 5, 15121, Alessandria, Italy

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Identifiers

DOI

10.12693/APhysPolA.131.1367