PHYSICOCHEMICAL ASPECTS OF MICROALLOYING OF THE LOW-PEARLITE STEELS WITH HIGH-STRENGTH AND HIGH COLD RESISTANCE FOR METALWORKS

Authors
LYAKISHEV NP TISHAEV SI PARSHIN VA ODESSKII PD SUYAZOV AV
Citation
Np. Lyakishev et al., PHYSICOCHEMICAL ASPECTS OF MICROALLOYING OF THE LOW-PEARLITE STEELS WITH HIGH-STRENGTH AND HIGH COLD RESISTANCE FOR METALWORKS, Russian metallurgy. Metally, (3), 1995, pp. 34-42
Citations number
15
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
Russian metallurgy. Metally → ACNP
ISSN journal
00360295
Issue
3
Year of publication
1995
Pages
34 - 42
Database
ISI
SICI code
0036-0295(1995):3<34:PAOMOT>2.0.ZU;2-T
Abstract
The effect of the alloying with carbonitride-forming elements (Ti, V, Al, and N) on structure, mechanical properties, and cold resistance of low-carbon steel St3sp and low-alloy steel 09G2S after high-temperatu re controlled rolling was studied in this work. The temperature and co ncentration ranges of the precipitation of fine particles Ti(C,N), V(C ,N), and AlN in austenite of these steels were determined. Efficiency of the precipitates for the formation of fine-grained structure in the hot-rolled billets was estimated. Reasonable basic chemical compositi ons and conditions of microalloying were determined for cold-strength low-pearlite steels with enhanced (YS = 345 - 375 MPa) and high (YS = 390 - 440 MPa) strength for weldable metalworks.