Startseite Technik Diffusion bonding of the Mo-base alloy TZM with interlayers
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Diffusion bonding of the Mo-base alloy TZM with interlayers

  • Karanam Bhanumurthy und Rainer Schmid-Fetzer
Veröffentlicht/Copyright: 23. Mai 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 99 Heft 7

Abstract

Molybdenum-base alloys have excellent high temperature mechanical properties and joining of these alloys as heat sink materials is envisaged in many structural applications of fusion reactors. TZM is an important Mo-base alloy and diffusion bonding experiments were carried out in a hot vacuum press by sandwiching interlayers, Ti, Ni, Mo and Ta between two pieces of the TZM alloy in the temperature range 900 to 1200 °C. Detailed metallurgical analysis was carried out using optical microscopy, scanning electron microscopy and by electron probe microanalyser. All the sandwiched diffusion couples consisting of TZM/X/TZM, (X = Ti, Ni, Mo, Ti) showed defect-free microstructures at the bonded interface at the optimised bonding conditions. Ti seems to be a more suitable interlayer compared to other interlayers in terms of bonding temperature and applied pressure. The TZM/Ni interface was marked by the presence of the intermetallic compound NiMo. The concentration profiles for diffusion couples TZM/Ti were asymmetric, whilst TZM/Mo and TZM/Ta were symmetric about the Matano Interface. The interdiffusion coefficients calculated using the Boltzmann–Matano method for TZM/Ti diffusion couples showed decreases in the values with increase in the Mo concentration.

Keywords: TZM alloy; Interdiffusion coefficient (); Diffusion bonding; Interlayers; Microstructure
† Correspondence address, Professor Rainer Schmid-Fetzer Technische Universität Clausthal Institut für Metallurgie (Therochemie and Mikrokinetik) D-38748 Clausthal-Zellerfeld, Germany Tel.: +49 5323 72 2150 Fax: +49 5323 72 3120 E-mail:

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Received: 2007-4-13
Accepted: 2008-5-1
Published Online: 2013-05-23
Published in Print: 2008-07-01

© 2008, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Basic
  4. On the reaction scheme and liquidus surface in the ternary system Al–Si–Ti
  5. Experimental study of the phase equilibria of the Ni – Zr system
  6. Tensile behaviour of micro-sized copper wires studied using a novel fibre tensile module
  7. Dislocation densities in soft and hard oriented grains of compression deformed textured NiAl polycrystals
  8. The influence of plastic instabilities on the mechanical properties of a high-manganese austenitic FeMnC steel
  9. Modeling of isothermal bainite formation based on the nucleation kinetics
  10. Application of the Kaptay model in calculation of ternary liquid alloys' viscosities
  11. The influence of the austenite dispersion on phase transformation during the austempering of ductile cast iron having a dual matrix structure
  12. Effect of trace Ti on the microstructure and mechanical properties of AM50 alloy
  13. Applied
  14. Diffusion bonding of the Mo-base alloy TZM with interlayers
  15. Amorphization, nanocrystallization and magnetic properties of mechanically milled Sm–Co magnetic powders
  16. Wear behavior of plasma nitrided AISI 420 stainless steel
  17. Hot extrusion of α and α/β-brass alloys
  18. Role of surface texture and roughness parameters in friction and transfer layer formation under dry and lubricated sliding conditions
  19. The emergence and disappearance of a high density of microcracks in nitrided Fe-4.65 at.% Al alloy
  20. Notifications
  21. DGM News
https://doi.org/10.3139/146.101700
Schlagwörter für diesen Artikel
TZM alloy; Interdiffusion coefficient (); Diffusion bonding; Interlayers; Microstructure

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Basic
  4. On the reaction scheme and liquidus surface in the ternary system Al–Si–Ti
  5. Experimental study of the phase equilibria of the Ni – Zr system
  6. Tensile behaviour of micro-sized copper wires studied using a novel fibre tensile module
  7. Dislocation densities in soft and hard oriented grains of compression deformed textured NiAl polycrystals
  8. The influence of plastic instabilities on the mechanical properties of a high-manganese austenitic FeMnC steel
  9. Modeling of isothermal bainite formation based on the nucleation kinetics
  10. Application of the Kaptay model in calculation of ternary liquid alloys' viscosities
  11. The influence of the austenite dispersion on phase transformation during the austempering of ductile cast iron having a dual matrix structure
  12. Effect of trace Ti on the microstructure and mechanical properties of AM50 alloy
  13. Applied
  14. Diffusion bonding of the Mo-base alloy TZM with interlayers
  15. Amorphization, nanocrystallization and magnetic properties of mechanically milled Sm–Co magnetic powders
  16. Wear behavior of plasma nitrided AISI 420 stainless steel
  17. Hot extrusion of α and α/β-brass alloys
  18. Role of surface texture and roughness parameters in friction and transfer layer formation under dry and lubricated sliding conditions
  19. The emergence and disappearance of a high density of microcracks in nitrided Fe-4.65 at.% Al alloy
  20. Notifications
  21. DGM News
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