Effects of Different Cooling Methods on Microstructure and Mechanical Properties of TC4 Alloy

  • Meigui Ou
  • Song Zhang
  • Hongchao Song
  • Yilong Liang
Conference paper

Abstract

In order to investigate the influence of the microstructure obtained by different heat treatments on the mechanical properties, TC4 alloy were heated at 1050 °C for 5 min and cooled to room temperature through different cooling methods (furnace cooling, open-door furnace cooling, air cooling and water cooling). Subsequently, the microstructure was observed and the corresponding mechanical properties were measured. The experimental results showed that with the increase of cooling rate, the microstructure (α + β) became smaller and finer, and the rough tensile fractures gradually became flat; the elastic limit and tensile strength increased and the plasticity decreased. In the uniform plastic deformation stage, the plastic deformation power reached the maximum (43.50 MJ m−3) for air cooling. In the necking stage, the plastic deformation power was the maximum for furnace cooling and the static toughness reached 110.82 MJ m−3. TC4 alloy obtained good comprehensive properties in the case of furnace cooling.

Keywords

TC4 Cooling method Microstructure Mechanical properties Static toughness 

Notes

Acknowledgements

This work was supported by Guizhou major special projects (Contract Number [2014] 6013); Guizhou engineering research center project (Contract Number [2017] 016).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Meigui Ou
    • 1
    • 2
    • 3
  • Song Zhang
    • 1
    • 2
    • 3
  • Hongchao Song
    • 1
    • 2
    • 3
  • Yilong Liang
    • 1
    • 2
    • 3
  1. 1.College of Materials and MetallurgyGuizhou UniversityGuiyangChina
  2. 2.Guizhou Key Laboratory for Mechanical Behavior and Microstructure of MaterialsGuiyangChina
  3. 3.National & Local Joint Engineering Laboratory for High-Performance Metal Structure Materials and Advanced Manufacturing TechnologyGuiyangChina

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