Scientific Statements of Technological Solutions Related to Control of Structure Formation in High-Strength Wheel-Tire Steel  Full text

K. I. Uzlov

Z.I. Nekrasov Iron & Steel Institute of National Academy of Sciences of Ukraine
1 Academician Starodubov Square, Dnipropetrovsk, 49050, Ukraine

UDC 669.017:669.14.018.294:001.8

Metall. Min. Ind.,  2010, Vol. 2, No. 6, pp. 413-419

Abstract

The current technological process of new generation microalloyed wheel-tire steel thermal hardening is analyzed in view of temperature-time parameters correspondence to positions of critical points and intervals of phase transformations. It is determined that Widmanstatten structure of ferrite with needlelike morphology is a “structural marker” of adequately realized thermal hardening technological process.

Keywords: WHEEL-TIRE STEEL, VANADIUM MICROALLOYING, THERMAL KINETIC OF STRUCTURE FORMATION, PHASE TRANSFORMATIONS, WIDMANSTATTEN STRUCTURE, FERRITE STRUCTURE OF NEEDLELIKE MORPHOLOGY, THERMAL HARDENING, CRITICAL POINTS AND INTERVALS OF  PHASE TRANSFORMATIONS