The influence of reheating temperatures on hot ductility is investigated in two Ni-, Mo-, and Cu-containing low-carbon steels. The effects of solution treatment conditions at 1623, 1673 K, and remelting at 1803 K on the reduction in area (RA) are analyzed. The results show an RA trough in the range of 973–1173 K in all experimental conditions. At 9...
Published in Steel in Translation
AbstractIn this paper, we study the morphology of the bainite component of the microstructure of rolled products and the mimic coarse-grained region of the thermal effect zone of K60–K65, 09G2S, and 08KhN2MFB low-carbon steels by methods of optical microscopy and electron backscatter diffraction. In the homogeneous microstructure of the former aust...
Ductile-to-brittle transition (DBT) temperature and brittle fracture stress, σF, are important toughness criteria for structural materials. In this paper, low-carbon steels with an ultrafine elongated grain (UFEG) structure (transverse grain size 1.2 μm) and with two ferrite (α)-pearlite structure with grain sizes 10 µm and 18 µm were prepared. The...
A successful attempt to incorporate the advantages of severe plastic deformation (SPD) methods in the continuous drawing process for low-carbon steel is demonstrated. The structural features are considered on different scale levels, using a wide range of methods. While combining shear deformation, which parallels the basis of SPD with the conventio...
Published in Inorganic Materials: Applied Research
AbstractUsing micrographic, dilatometric, and high-temperature XRD methods, the kinetics of formation of austenite is studied under continuous heating of ultrafine-grained 08G2B steel in two initial states—after quenching and normalization.
Published in Steel in Translation
AbstractLow-carbon aluminum-killed steels constitute the main group of structural steels produced in Russia and worldwide. These steels are used in the key sectors of the economy such as construction, automotive industry, mining and transportation of minerals. The steel melt deoxidation by aluminum leads to the formation of nonmetallic inclusions, ...
Published in Physics of Metals and Metallography
AbstractThis paper considers the reasons for the differences in the position of the peaks of reversible magnetic permeability in plastically deformed low-carbon steels and of the corresponding peaks of differential magnetic permeability. The discussion deals with two of three peaks caused by, correspondingly, reversible and irreversible shifts of 9...
Published in Polymer Science, Series D
A technique for the formation of diffusion layers based on zinc on the surface of low-carbon low-alloy steels for their corrosion protection is considered. The possibility of the formation of dense corrosion-resistant coatings with a smooth hardness gradient through depth by diffusion zinc-plating combined with gas nitriding is studied.
Published in Metal Science and Heat Treatment
The characteristics of hardening of low-carbon martensitic steels alloyed with strong carbide-forming elements and having a lath and lath-globular structure are investigated. The structure of the steels is studied and the strength, ductility and toughness characteristics are determined. The true strain-stress curves are plotted. The hardening param...
Published in The Physics of Metals and Metallography
Phase and structural transformations upon heating in the intercritical temperature range have been studied in initially quenched 12Kh2G2NMFT and 12KhN3A low-carbon steels. The dependence of the intercritical interval (ICI) width on the heating rate of initially quenched steels has been demonstrated. The structure and properties of the steels after ...
