skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Effect of high-temperature thermomechanical treatment on microstructure and mechanical properties of an austenitic steel with dispersed particles

Akkuzin, S. A. ; Litovchenko, I. Yu ; Tyumentsev, A. N. Panin, Victor E ; Fomin, Vasily M

AIP Conference Proceedings, 2020, Vol.2310 (1) [Periódico revisado por pares]

Melville: American Institute of Physics

Sem texto completo

Citações Citado por
  • Título:
    Effect of high-temperature thermomechanical treatment on microstructure and mechanical properties of an austenitic steel with dispersed particles
  • Autor: Akkuzin, S. A. ; Litovchenko, I. Yu ; Tyumentsev, A. N.
  • Panin, Victor E ; Fomin, Vasily M
  • Assuntos: Austenitic stainless steels ; Carbides ; Chemical composition ; Dispersion hardening ; Elongation ; Heating ; High temperature ; Mechanical properties ; Microstructure ; Misalignment ; Molybdenum ; Plastic deformation ; Solid solutions ; Thermomechanical treatment ; Titanium
  • É parte de: AIP Conference Proceedings, 2020, Vol.2310 (1)
  • Descrição: The features of microstructure and mechanical properties of an austenitic reactor steel with dispersed particles after high-temperature thermomechanical treatment with plastic deformation after heating to T = 1100 and 600°C are investigated. It is shown that as a result of processing with heating to T = 1100°C, plastic deformation develops in localized regions of the material and a fragmented microstructure with predominantly low-angle misorientation boundaries is formed. After deformation with heating to T = 600°C, fragmentation develops more intensively with the formation of both low- and high-angle misorientation boundaries. The elemental composition of dispersed carbide particles of the MC type in steel is studied. It is shown that these particles have a complex composition based on Ti, Nb, and Mo. The elemental composition of the matrix after the treatments corresponds to the nominal one, which indicates that a significant proportion of carbide-forming elements remains in the solid solution and does not participate in the formation of dispersed particles. These structural states provide an increase in the yield strength of steel up to ≈550– 740 MPa compared to the initial values with a relative elongation of ≈7–12.5%. It should be noted that the main contribution to strengthening (Δσ ≈ 350–540 MPa) is provided by the fragmented structure, while the contribution of dispersed particle hardening is Δσdisp≤35 MPa.
  • Editor: Melville: American Institute of Physics
  • Idioma: Inglês
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  7 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.