Investigation of Fracture Surfaces of Soft Magnetic Materials

• Authors: J. Bidulská , T. Kvačkaj , R. Bidulský , M. Actis Grande , L. Ferraris
• Languages of publication: EN

Abstracts

EN

The present paper focused on the analysis of the fracture surfaces of a new development insulated iron powder compound with the addition of the aluminium alloy in order to improve the mechanical properties. Results show that in the pressed state, mainly pores act as crack initiators and due to their presence the distribution of stress is inhomogeneous across the cross-section and leads to the reduction of the effective load bearing area. Investigation of fracture surfaces concluded that improvements in bonding during the pressing process and heat treatment can be helpful in the development of soft magnetic materials to give a suitable combination between pressing pressure, annealing temperature and time as well as magnetic properties.

Keywords

EN

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

Discipline

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

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 800-801

Dates

published

2010-11

Contributors

author

J. Bidulská

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

author

T. Kvačkaj

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

author

R. Bidulský

• Politecnico di Torino-Alessandria Campus, V. Teresa Michel 5, 15100 Alessandria, Italy

author

M. Actis Grande

• Politecnico di Torino-Alessandria Campus, V. Teresa Michel 5, 15100 Alessandria, Italy

author

L. Ferraris

• Politecnico di Torino-Alessandria Campus, V. Teresa Michel 5, 15100 Alessandria, Italy

References

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• 3. F.G. Hanejko, C. Oliver, H.G. Rutz, in: Advances in Powder Metallurgy and Particulate Materials, Vol. 6, MPIF, Princeton (NJ) 1992, p. 375
• 4. L. Hultman, O. Andersson, A. Jack, SAE Trans. 112, 158 (2003)
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• 7. J. Bidulská, T. Kvačkaj, R. Kočiško, R. Bidulský, M. Actis Grande, Acta Metall. Slovaca 16, 4 (2010)
• 8. H. Danninger, H.C. Neubing, J. Gradl, in: Powder Metallurgy'98, Vol. 5, EPMA, Shrewsbury 1998, p. 272
• 9. P.J. Denny, Powder Technol. 127, 162 (2002)

Identifiers

DOI

10.12693/APhysPolA.118.800