Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-153 - C7-156
DOI http://dx.doi.org/10.1051/jp4:1993724
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-153-C7-156

DOI: 10.1051/jp4:1993724

Properties and microstructure of high speed steel powders produced under rapid solidification conditions

M. MISKOVICOVÁ1, M. FEDORCÁKOVÁ1 and V. BODÁK2

1  Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 043 53 Ko[MATH]ice, Slovak Republik
2  Technical University Kosice, Slovak Republik


Abstract
The objective of this paper is the analysis of physical properties and microstructure of high speed steel powders produced vie gas atomization into gas and into water. We have found that the influence of atomization method on the physical properties and on the microstructure of high speed steel powder particles is considerable higher than that of their chemical composition. The increasing cooling rates resulted in microstructure changes and at a particular threshold cooling rate the crystallization mechanism qualitatively changes.



© EDP Sciences 1993