Influence of molybdenum on the structure and strength of steels with carbide-intermetallide hardening

Previously abstracted from original from item 9209-56-1182. A study was done on a group of steels with carbide-intermetallic hardening phases, containing 0.12 and 0.21 carbon, 9.5 Ni, 1.0-3.5 Mo, 0.03 and 0.8 Al, 0.2 vanadium, 1.2 Cu and 0.05% Nb. X-ray spectral analysis combined with electron micro...

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Published inMetal science and heat treatment Vol. 33; no. 9; pp. 658 - 663
Main Authors Farber, V. M., Kruglov, A. A., Potemkina, T. G., Savenkova, E. A., Borodina, T. M.
Format Journal Article
LanguageEnglish
Published 01.09.1991
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Summary:Previously abstracted from original from item 9209-56-1182. A study was done on a group of steels with carbide-intermetallic hardening phases, containing 0.12 and 0.21 carbon, 9.5 Ni, 1.0-3.5 Mo, 0.03 and 0.8 Al, 0.2 vanadium, 1.2 Cu and 0.05% Nb. X-ray spectral analysis combined with electron microscopy and chemical analysis were used to determine the secondary phases formed upon tempering at 400-600 deg C after quenching from 900-950 deg C. Steels of type 16N11D1.5M2YuF and 14N10DM2YuF after quenching from 900 deg C and tempering at 550 deg C for 1 h had a 0.2 yield strength of 1680 and 1660 N/mm exp 2 , tensile strength of 1730 N /mm exp 2 , elongation of 11 and 12%, reduction-in-area of 49 and 53% and impact resistance of 50 and 57 J/cm exp 2 , respectively. This heat treatment was determined to be the optimum for steels of this type.
Bibliography:ObjectType-Article-1
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ISSN:0026-0673
1573-8973
DOI:10.1007/BF00811726