RESEARCH OF BUILDING MATERIALS

RESEARCH OF SYNERGETIC PROPERTIES OF HIGH-STRENGTH STRUCTURAL STEEL 14Х2GMR IN THE AFTERMATH OF EXPOSURE TO HEAT TREATMENT

Vestnik MGSU 6/2012
  • Gustov Yuriy Ivanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Profes- sor, Department of Machinery, Machine Elements and Process Metallurgy; +7 (499) 183-94-95, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Rus- sian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Allattouf Hassan Lattouf - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Mechanic Equip- ment, Details of Machines and Technology of Metals, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 79 - 82

The article represents a brief overview of the properties of steel type 14X2GMR (Russian standards), a high-performance synergetic structural steel exposed to different modes of heat treatment.
The author demonstrates that the best set of the steel properties was obtained upon its normalization (Option 5). An alternative option is Option 1 (water quenching). This steel demonstrates its ≈ 1,0, which indicates the proximity between the uniform δр value and the concentrated δc value as the constituents of δ, the elongation value.
The best set of δр ,Ψр ,p, c, Кзт and p/c values is demonstrated by the steel at the normal temperature of 20 °C. An alternative set of criteria properties is identified at -60 °С.
The final choice of the optimal heat treatment mode and the operating temperature is recommended to be based on the maximal values of = p/c and the static viscosity
c = 0,5(k - σT)1n[1/(1 - Ψ)].
Given the resistance of steel to cracking during welding (Δ= 1,5; PSK= -0,25<0), it can be recommended for heavy-duty welded parts and assemblies.

DOI: 10.22227/1997-0935.2012.6.79 - 82

References
  1. Bol’shakov V.I. Substrukturnoe uprochnenie konstruktsionnykh staley [Substructural Strengthening of Structural Steels], a monograph. Canada, 1998, 316 p.
  2. Spravochnik po spetsial’nym rabotam. Svarochnye raboty v stroitel’stve [Reference Book of Specialty Assignments. Welding in Construction]. Moscow, 1971, Part 1, 464 p.

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