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- Title
DETERMINATION OF AUSTENITIZATION AND MARTENSITIC TRANSFORMATION TEMPERATURES OF M398 STEEL.
- Authors
Cíger, Róbert; Barényi, Igor; Krbaťa, Michal
- Abstract
The article deals with dilatometric analysis of M398 steel. It is a chromium steel, produced by Böhler using MICROCLEAN powder metallurgy process. The investigated steel is high-alloy chromium and vanadium with a high carbon content. The steel is characterized by high strength, resistance to abrasive wear and corrosion. The result of the dilatometric analysis will be dilatation curves for selected cooling modes in order to determine the initial austenitization temperatures Ac1 and Ac3 and the beginning of the matrensitic transformation Ms. Since the steel is highly alloyed with Cr and V, its microstructure is formed by a very high content of carbides of the M7C3 and MC type. These carbides affect the resulting mechanical properties of the material M398 and predetermine its use for screws in injection molding machines in the plastics industry, where this steel has the highest use so far.
- Subjects
MARTENSITIC transformations; MECHANICAL behavior of materials; INJECTION molding of plastics; COOLING curves; STEEL; INJECTION molding; HIGH strength steel
- Publication
University Review (1337-6047), 2021, Vol 15, Issue 1, p7
- ISSN
1337-6047
- Publication type
Article