A Study of the Effect of Nickel on Structural and Phase Transformations and Properties of High-Strength Medium-Carbon Complexly Alloyed Steel

The effect of nickel content in a high-strength medium-carbon complexly alloyed steel on the structural and phase transformations, location of critical points, quantitative parameters of microstructure and critical quenching rate is studied. Thermokinetic diagrams of decomposition of supercooled aus...

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Bibliographic Details
Published inMetal science and heat treatment Vol. 61; no. 11-12; pp. 681 - 686
Main Authors Poletskov, P. P., Gushchina, M. S., Koptseva, N. V., Nikitenko, O. A., Efimova, Yu. Yu
Format Journal Article
LanguageEnglish
Published New York Springer US 01.03.2020
Springer
Springer Nature B.V
Subjects
Alloy steels
Alloying
Carbon
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Cooling rate
Critical point
Engineering Thermodynamics
Heat and Mass Transfer
High strength
International economic relations
Low temperature
Low temperature resistance
Materials Science
Mechanical properties
Metallic Materials
Microstructure
Nickel
Phase transitions
Quenching
Specialty metals industry
Steel
high-strength cold-resistant steel
phase composition
mechanical proper
microstructure
effect of nickel
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Summary:The effect of nickel content in a high-strength medium-carbon complexly alloyed steel on the structural and phase transformations, location of critical points, quantitative parameters of microstructure and critical quenching rate is studied. Thermokinetic diagrams of decomposition of supercooled austenite in the steel with original composition are plotted and the characteristic types of microstructure forming under cooling at different rates are described. The effect of nickel on the combination of mechanical properties of thick rolled sheets after quenching and low-temperature tempering is determined. The results obtained may be used for development of high-strength cold-resistant steels and modes of their heat hardening.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-020-00482-8