Startseite Particle and microstructural characteristics in the coarse-grained heat-affected zone of Al–Ti–Ca complex deoxidized steels
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Particle and microstructural characteristics in the coarse-grained heat-affected zone of Al–Ti–Ca complex deoxidized steels

  • Yu Liu , Xiangliang Wan , Guangqiang Li , Yong Wang , Wan Zheng und Yanhui Hou
Veröffentlicht/Copyright: 30. Januar 2019
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 110 Heft 2

Abstract

The particles and microstructures in the coarse-grained heat-affected zones of Al–Ti–Ca complex deoxidized steels with different Al content were investigated by in-situ observation, various analytical techniques and calculations. The results show that the inclusions in high Al steel consist of Al–Ca oxides containing small amounts of TiOx surrounded by an outer layer of MnS. In low Al steel, the inclusions consist of Al–Ca–Ti oxides with high TiOx content covered by an outer layer of MnS, and the high TiOx content in the inclusions can remarkably enhance the ability of the inclusions to promote acicular ferrite nucleation. The fine-grained microstructure obtained in the coarse-grained heat-affected zones of low Al steel is attributed to the pinning effect of the finer particles and the formation of a high density of acicular ferrite.

Keywords: CGHAZ; Inclusion; Precipitate; Grain refinement; Acicular ferrite
*Correspondence address, Professor Guangqiang Li, The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947, Heping Avenue, Qingshan District, Wuhan 430081, P.R. China, Tel.: +862768862665, Fax: +862768862665, E-mail:

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Received: 2018-05-15
Accepted: 2018-08-18
Published Online: 2019-01-30
Published in Print: 2019-02-12

© 2019, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Nanoindentation analysis methods examined with finite element simulations
  5. Experimental investigation of gas/matte/spinel equilibria in the Cu–Fe–O–S system at 1250°C and P(SO2) = 0.25 atm
  6. Replacing martensite with nanobainite in moderately alloyed carburised steel for better wear performance
  7. Microstructure, hardness and wear behaviour of NbC reinforced AA7075 matrix composites fabricated by friction stir processing
  8. Microstructure, mechanical, and high-stress abrasive wear behaviour of as-cast and heat-treated Al–Si–SiCp composite
  9. Mechanical and morphological properties of bamboo mesoparticle/nylon 6 composites
  10. Particle and microstructural characteristics in the coarse-grained heat-affected zone of Al–Ti–Ca complex deoxidized steels
  11. Corrosion behavior of stir-cast Al–TiB2 metal matrix composites
  12. Correlation between anodization variables and surface properties of titania nanotube arrays for dye-sensitized solar cells
  13. Wetting and sealing of the interface between silicate glass and copper
  14. Short Communications
  15. Investigation of MWCNTs addition on mechanical properties of cordierite glass-ceramic composites
  16. DGM News
  17. DGM News
https://doi.org/10.3139/146.111730
Schlagwörter für diesen Artikel
CGHAZ; Inclusion; Precipitate; Grain refinement; Acicular ferrite

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Nanoindentation analysis methods examined with finite element simulations
  5. Experimental investigation of gas/matte/spinel equilibria in the Cu–Fe–O–S system at 1250°C and P(SO2) = 0.25 atm
  6. Replacing martensite with nanobainite in moderately alloyed carburised steel for better wear performance
  7. Microstructure, hardness and wear behaviour of NbC reinforced AA7075 matrix composites fabricated by friction stir processing
  8. Microstructure, mechanical, and high-stress abrasive wear behaviour of as-cast and heat-treated Al–Si–SiCp composite
  9. Mechanical and morphological properties of bamboo mesoparticle/nylon 6 composites
  10. Particle and microstructural characteristics in the coarse-grained heat-affected zone of Al–Ti–Ca complex deoxidized steels
  11. Corrosion behavior of stir-cast Al–TiB2 metal matrix composites
  12. Correlation between anodization variables and surface properties of titania nanotube arrays for dye-sensitized solar cells
  13. Wetting and sealing of the interface between silicate glass and copper
  14. Short Communications
  15. Investigation of MWCNTs addition on mechanical properties of cordierite glass-ceramic composites
  16. DGM News
  17. DGM News
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