Low-Carbon Ti-Mo Microalloyed Hot Rolled Steels: Special Features of the Formation of the Structural State and Mechanical Properties

Metals

Alexander Zaitsev¹  Nataliya Arutyunyan² 

[1] Bardin Central Research Institute of Ferrous Metallurgy, 105005 Moscow, Russia;Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia;

关键词: Ti-Mo microalloyed steels;    low-carbon steels;    grain boundary strengthening;    precipitation strengthening;    interphase precipitates;    ferritic precipitates;   

DOI  :  10.3390/met11101584

来源: DOAJ

【 摘 要 】

Low-carbon Ti-Mo microalloyed steels represent a new generation of high strength steels for automobile sheet. Excellent indicators of difficult-to-combine technological, strength, and other service properties are achieved due to the superposition of a dispersed ferrite matrix and a bulk system of nanoscale carbide precipitates. Recently, developments are underway to optimize thermo-deformation processing for the most efficient use of phase precipitates. The review summarizes and analyzes the results of studies of mechanical properties depending on the chemical composition and parameters of hot deformation of low-carbon Ti-Mo microalloyed steels. Particular attention is paid to the features of the formation and the influence of various types of phase precipitates and the dispersion of the microstructure on mechanical properties. The advantages of Ti-Mo microalloying system and the tasks requiring further solution are shown.

【 授权许可】

Unknown