Abstract
Methods of electron diffraction microscopy were applied to investigate the influence of a number of austenization parameters on martensitic phase morphology in steel type 38KhN3MFA. The parameters considered are as follows: grain size of original austenite, segregations and carbide phases at grain boundaries, structural defects, cooling rate on quenching within the range of 1 to 300° C·s-1. Cooling rate was revealed to be a decisive factor that determined martensite morphology. The cooling rate range of 1-20° C·s-1 was shown to promote plate-type martensite formation. This modification was called high-temperature plate-type martensite. Dependence of volumetric share of martensite mentioned on austenization parameters is presented for hardened steel.
Original language | English |
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Pages (from-to) | 202-205 |
Number of pages | 4 |
Journal | Fizika Metallov i Metallovedenie |
Issue number | 11 |
Publication status | Published - Nov 1992 |
ASJC Scopus subject areas
- Metals and Alloys