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Microstructural and mechanical properties of dual-phase steels welded using GMAW with solid and flux-cored welding wires

  • Fatih Hayat and Hüseyin Uzun
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 7

Abstract

The aim of this study is to demonstrate the transformation of grade-A steel into dual-phase steel by heat treatment, and the joint performance of dual-phase steels welded by means of the gas metal arc welding process using both solid and flux-cored welding wires. Dual-phase steels with different contents of martensite were obtained by intercritical annealing in different temperature ranges of a grade-A shipbuilding steel, followed by water quenching. The experimental results revealed that the tensile strength of the dual-phase steels joined by solid wire is higher than that of the flux-cored wire joints. The microstructure of grade-A steel consists of ferrite and pearlite, while the dual-phase steels consist of ferrite and martensite. On the other hand, while the martensitic phase is especially encountered in the weld metal of the dual-phase steels joined with the solid wire, the ferrite phase is more common in the weld metal of the flux-cored wire joints.

Keywords: Grade-A shipbuilding steel; Dual-phase steel; Gas metal arc welding; Ceramic backing material Ceramic backing material
* Correspondence address Assist. Prof. Dr. Fatih Hayat Metallurgy Materials Engineering Department, Engineering FacultyKarabük University, 78050, Karabük, Turkey Tel.: 0090370 4332021/202 Fax: 0090370 4338204 E-mail:

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Received: 2009-4-15
Accepted: 2012-1-10
Published Online: 2013-06-11
Published in Print: 2012-07-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110702
Keywords for this article
Grade-A shipbuilding steel; Dual-phase steel; Gas metal arc welding; Ceramic backing material Ceramic backing material

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Diffusivities and atomic mobilities in Cu-rich fcc Al–Cu–Mn alloys
  5. Phase transformations in non-isothermally annealed as-cast and cold-rolled AlMnScZr alloys
  6. High-temperature deformation behavior and thermal properties of an Ni30Co17Fe53 alloy
  7. Microstructural and mechanical properties of dual-phase steels welded using GMAW with solid and flux-cored welding wires
  8. Microstructure – wear performance relationship of hypoeutectic 15% Cr-2% Mo white iron
  9. The enhancement of wear properties of squeeze-cast A356 composites reinforced with B4C particulates
  10. Phase diagram of the Al–Dy–Zr ternary system at 773 K
  11. Calorimetric investigations of liquid gold–antimony–tin alloys
  12. Combustion synthesis and characterization of bulk nanostructured Ni50Al17Fe33 alloy
  13. Effect of sand blasting on structural, thermal, and mechanical properties of Zr58.3Cu18.8Al14.6Ni8.3 bulk metallic glass
  14. Studies of dynamic mass transfer at the slag–metal interface – Interfacial velocity measurements
  15. Structural and optical investigation of gadolinia-doped ceria powders prepared by polymer complex solution method
  16. Adsorption of bovine serum albumin onto titanium dioxide nanotube arrays
  17. CNT-based displacement sensor
  18. Non-covalent assembly of hybrid nanostructures of gold and palladium nanoparticles with carbon nanotubes
  19. Effect of solid content on performance of conductive silver paste for crystalline silicon solar cells
  20. Effect of inhomogeneous size and shape of graphite particles on the in-plane electrical conductivity of PP/G/CB composites
  21. The durability of fired brick incorporating textile factory waste ash and basaltic pumice
  22. DGM News
  23. DGM News
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