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Tungsten heavy alloy as a filler metal for repair welding of dies for high pressure die casting

  • Andrej Skumavc , Janez Tušek , Aleš Nagode and Ladislav Kosec
Published/Copyright: November 5, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 104 Issue 11

Abstract

This paper presents the preliminary test of tungsten heavy alloy as a filler metal for repair welding of high pressure die casting dies. H13 grade hot work tool steel was used as a base material. Multipass gas tungsten arc welding was used to fill a single-V butt joint with tungsten heavy alloy in the form of a welding rod. The microstructure of the weld was examined using scanning electron microscopy and optical microscopy. It was found that tungsten grains are not dissolved completely during welding and areas of fine eutectic were formed during solidification of the weld. The hardness of the weld was measured in three courses across the weld and increased in the heat affected zone while the weld hardness was below 380 HV0.3. Charpy V-notched samples were prepared from the weld. The high content of tungsten grains distributed in the nickel–iron weld matrix resulted in low impact toughness of 5.1 J. Face bend testing of the weld was conducted in order to study weld ductility.

Keywords: High pressure die casting; Tungsten heavy alloy; Repair welding; Hot work tool steel; Gas tungsten arc welding
* Correspondence address, Andrej Skumavc, University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, 1000 Ljubljana, Slovenia, Tel.: +38614771205, Fax: +38614771225, E-mail:

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Received: 2013-02-13
Accepted: 2013-06-04
Published Online: 2013-11-05
Published in Print: 2013-11-14

© 2013, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110963
Keywords for this article
High pressure die casting; Tungsten heavy alloy; Repair welding; Hot work tool steel; Gas tungsten arc welding

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Solubility of nitrogen in ferrite; the Fe–N phase diagram
  5. The Li–C phase equilibria
  6. Experimental study of phase equilibria in the “SnO”–SiO2–“FeO” system at silica saturation, and fixed oxygen partial pressures at 1473 K
  7. The evolution of Y distribution during the processing route of mechanically alloyed iron studied by means of atom probe tomography
  8. Oscillative surface morphology in peritectic NiAl using phase-field modeling
  9. Microstructural characterisation of oxide layer developed by sulphuric anodisation on 2017A alloys
  10. Wear and corrosion behaviour of AISI 310 and AISI 316 stainless steels in synthetic mine water
  11. Superplasticity of coarse-grained Ti-13V-11Cr-3Al alloy
  12. Research on the creep fracture mechanism of FGH95 Ni-based superalloy
  13. Hot pressing of Al2O3 matrix ceramic materials improved by diopside additive
  14. Tungsten heavy alloy as a filler metal for repair welding of dies for high pressure die casting
  15. A one-pot synthesis of Ag/α-Fe2O3 nanoplates with gelatin and their photocatalytic activity
  16. Short Communications
  17. Effects of coating solution concentration on the interlaminar shear strength of carbon fiber/epoxy/nano-CaCO3 composites
  18. People
  19. Dr.-Ing. Christa Blank
  20. DGM News
  21. DGM News
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