V. V. Molokanov, A. A. Dubov, A. V. Yamchuk, A. V. Krutilin, N. A. Palii, A. A. Alpatov, O. S. Antonova
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引用次数: 0
Abstract
The surface and internal defects of long cast rods made of a near-eutectic 84KKhSR Co alloy using nondestructive testing methods, namely, X-ray computed tomography and metal magnetic memory, and macrostructural and fractographic analyses are analyzed. The main defects in the rods are found to be gas pores and cavities. Zone melting is shown to eliminate these defects. Deep pores and cavities are eliminated during the first remelting, and the second remelting leads to complete elimination of defects and stabilization of geometric dimensions along the rod length.
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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