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Influence of niobium on structure/property relationships in C-Mn shipbuilding steel

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Abstract

The effect of niobium microaddition in C-Mn steel on microstructure, tensile properties, ductile-brittle transition temperature, and weldability have been investigated. Niobium microaddition adversely affects the transition temperature and toughness of the heat-affected zone, counteracting its favorable effects of refined grain size and low inclusion and pearlite content.

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Deshmukh, V.P., Yadaw, S.B., Shah, A.K. et al. Influence of niobium on structure/property relationships in C-Mn shipbuilding steel. JMEP 4, 532–542 (1995). https://doi.org/10.1007/BF02649584

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Keywords

  • C-Mn steel
  • ductile-brittle transition temperature
  • heat-affected zone simulation
  • microstructure
  • niobium microalloying
  • tensile properties