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Thixo-joining of D2 and M2 tool steels: analysis of microstructure and mechanical properties

  • Ali Kalaki , Mostafa Ketabchi and Mahmoud Abbasi
Published/Copyright: August 11, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 8

Abstract

Thixo-joining as a method of joining dissimilar materials was introduced recently. In this method, specimens in a semi-solid condition are brought into contact with each other under compression. As a result, diffusion bonding takes place between the specimens. In this research, two kinds of tool steels, AISI D2 and AISI M2, which are difficult to join using conventional methods, were joined together through the thixo-joining process. While specimens were being heated in a furnace with argon-controlled atmosphere through the direct partial remelting method, a uniaxial constant compressive load was applied to them. The Microstructure and mechanical properties of the joint were analyzed using scanning electron microscopy, shear, and hardness tests. The results showed a joint with good quality regarding the microstructure and mechanical properties. Moreover, energy dispersive spectroscopy revealed the diffusion of elements during the joining process. The fracture surface of the joint was also analyzed and characterized as intergranular.

Keywords: Thixo-joining; Tool steels; Mechanical properties; Semi-solid joining
* Correspondence address, Dr. Mostafa Ketabchi, Department of Mining & Metallurgy, Amirkabir University of Technology, Hafez Ave., No. 424, Tehran, Iran, P. O. Box: 15875-4413, Tel: +98 21-64542955, Fax: +98 21-66405846 E-mail:

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Received: 2013-09-22
Accepted: 2014-01-20
Published Online: 2014-08-11
Published in Print: 2014-08-11

© 2014, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111080
Keywords for this article
Thixo-joining; Tool steels; Mechanical properties; Semi-solid joining

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure evolution at high temperature of chromium-rich iron-based alloys containing hafnium carbides
  5. Industrialised nanocrystalline bainitic steels. Design approach
  6. Impact toughness of welds deposited on H13 hot work tool steel
  7. Characterization of hot flow behaviour and deformation stability of medium carbon microalloyed steel using artificial neural networks and dynamic material model
  8. Influence of hot working on mechanical and physical properties of an Fe – Ni – Co alloy
  9. Thixo-joining of D2 and M2 tool steels: analysis of microstructure and mechanical properties
  10. Effect of Li addition on microstructure and mechanical properties of Al – Mg – Si alloy
  11. Investigation of the mechanochemical behavior of the Mg – TiO2 – H3BO3 system
  12. Tribological and micro/nano-structural characterization of some Fe-based sintered composites
  13. Synthesis and oxidation behavior of Al4SiC4 – Al – Si composites
  14. Copper-catalyzed electroless nickel coating on poly(ethylene terephthalate) board for electromagnetic application
  15. Effect of boron on wear and erosion of WC – Ni vacuum brazed coating
  16. Short Communications
  17. Crystalline boron carbide grown on a diamond surface
  18. People
  19. Prof. Dr. Dieter Herlach on the occasion of his 65th birthday
  20. DGM News
  21. DGM News
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