Special features of the formation of microstructure of heat-treated low-alloy steel

The strength and the operational properties of low-alloy thick-sheet steels is increased by heat treatment in the line of the mill with the use of the rolling or furnace heat. The present work concerns the special features of structure formation and the mechanical properties of rolled stock from she...

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Bibliographic Details
Published in:Metal science and heat treatment 1998-08, Vol.40 (7-8), p.313-315
Main Authors: SPIVAKOV, V. I, UZLOV, I. G, MOISEEVA, L. A, ORLOV, E. A, TIKHONYUK, L. S
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Furnaces
Heat treatment
High strength low alloy steels
Hot rolling
Low alloy steels
Materials science
Metallurgy
Metals. Metallurgy
Physics
Rolling mills
Sheet metal
Solid solution hardening, precipitation hardening, and dispersion hardening
aging
Solid solution, precipitation, and dispersion hardening
aging
Strength
Structural steels
Treatment of materials and its effects on microstructure and properties
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Summary:The strength and the operational properties of low-alloy thick-sheet steels is increased by heat treatment in the line of the mill with the use of the rolling or furnace heat. The present work concerns the special features of structure formation and the mechanical properties of rolled stock from sheet structural steel 09G2S with a strength level C345 (σ^sub y^=325-345 MPa) in a hot-rolled and a normalized state after accelerated cooling from the normalizing furnace and after rolling behind the finishing stand. As a result of the rapid cooling in the line of the mill the sheet acquires properties corresponding to steels with a C390-C440 strength level (σ^sub y^=390-440 MPa).[PUBLICATION ABSTRACT]
ISSN:0026-0673
1573-8973
DOI:10.1007/BF02466217