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Description

Background

Tungsten carbide is useful because of its hardness and strength. Joining of dissimilar materials especially non-metallic materials is very challenging. Active metals such as titanium can be added to a ductile filler metals such as copper to get wetting via a reduction reaction.

Conclusions

All alloy conditions wet the tungsten carbide/cobalt substrates. Two different interfacial reaction types were observed: dissolution and reduction reactions. An important issue has been identified: the braze interface reactions change the chemistry of the braze alloy which change the interaction between the braze alloy and the other material substrate.

Publication Date

Summer 2014

Keywords

metal braze alloys, tungsten carbide

Disciplines

Metallurgy

Comments

  • Dr. Alan Meier - Advisor
  • Montana Tech SURF program - Funding
  • Gary Wyss – Assistance with scanning electron microscope
  • Ronda Coguill – Assistance with vacuum furnace
  • Dr. William Gleason – Assistance with scanning electron microscopes and vacuum furnace

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Wetting and Reactivity of Active Metal Braze Alloys on Tungsten Carbide

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