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Otimização das propriedades mecânicas por meio de modificações microestruturais em aços de baixo carbono
Other Titles: 
Mechanical properties optimization in low carbon steel by microstructure modification
  • CTA
  • Universidade Estadual Paulista (UNESP)
  • Inst. Pesq. Energeticas/Nucleares
This paper discusses the formation of microstructures with different volume fractions, as an outcome of a specific heat treatment, with the following phases: ferrite, martensite, bainite and retained austenite. For the microstructure characterization it is developed a chemical etching that allows to distinguish the phases by optical microscopy. The evaluation of the mechanical properties is done based on the results of tensile and fatigue tests. The experimental results show that appropriate heat treatments can contribute to a significant improvement in the mechanical properties of the steel. In this process it is essential to control the fraction volume, morphology of the phases, and grain size.
Issue Date: 
58th Congresso Anual da ABM (ASSociacao Brasileira de Metalurgia e Materiais), p. 2801-2809.
Time Duration: 
  • Mechanical properties
  • Microstructure
  • Multiphase steels
  • Etching
  • Fatigue testing
  • Grain size and shape
  • Heat treatment
  • Optical microscopy
  • Tensile strength
  • Volume fraction
  • Retained austenite
  • Carbon steel
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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