V. M. Blinov, O. A. Bannykh, I. O. Bannykh, E. V. Blinov, E. I. Lukin, D. V. Chernenok, I. N. Lukina, M. A. Samoilova
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Fracture Toughness of Aging Nonmagnetic Vanadium-Containing Steels
Abstract—The influence of alloying elements and heat-treatment conditions on the fracture toughness of precipitation-hardening nonmagnetic vanadium-containing steels has been studied. The causes of formation of microductile intergranular fracture in steels, the structure of which contains precipitate-free zones, are revealed. Alloying of Mn-containing steels with nickel is found to increase K1c; the introduction of chromium in Mn–Ni steels in an amount of more than 3% leads to a decrease in K1c. The heat-treatment conditions forming a fine-grained structure with fine VC and VN particles in an amount of 0.5–1.0 wt % is shown to provide maximum K1c.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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