Microstructure and Mechanical Properties of Aircraft Steel 30Kh2GSN2VM

Special features of structure formation in steel 30Kh2GSN2BM under continuous cooling from the temperature of complete austenitization and under an isothermal hold in the temperature range of bainitic transformation are studied. Metallographic and x-ray diffraction phase analysis are performed and t...

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Veröffentlicht in:	Metal science and heat treatment 2022-11, Vol.64 (7-8), p.465-473
Hauptverfasser:	Maisuradze, M. V., Kuklina, A. A., Lebedev, D. I., Ryzhkov, M. A., Makarov, D. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analysis Bainitic transformations Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Degassing of metals Dilatometry Engineering Thermodynamics Heat and Mass Transfer Materials Science Mechanical properties Metallic Materials Metals Oil quenching Quenching and tempering Steel Structural Steels
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Beschreibung
Zusammenfassung:	Special features of structure formation in steel 30Kh2GSN2BM under continuous cooling from the temperature of complete austenitization and under an isothermal hold in the temperature range of bainitic transformation are studied. Metallographic and x-ray diffraction phase analysis are performed and tensile and impact bending tests of specimens are conducted. The data of the dilatometric and metallographic studies are used to plot a thermokinetic diagram of transformation of supercooled austenite. The laws of variation of mechanical properties of the steel after oil quenching and tempering and after normalizing in air and different variants of isothermal quenching are determined.
ISSN:	0026-0673 1573-8973
DOI:	10.1007/s11041-022-00832-8