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Metallurgical and Materials Transactions A

, Volume 44, Issue 5, pp 2226–2232 | Cite as

Boride Zone Formation in Transient Liquid Phase Bonding of Pairings of Parent Superalloy Materials with Different Compositions and Grain Structures

  • S. Steuer
  • R. F. Singer
Article

Abstract

Two nickel-base superalloys are joined via transient liquid phase (TLP) bonding with boron as the MPD. Boride formation is observed in the parent materials at some distance from the solid/liquid interface. The boron concentration profile over the joint is measured with glow discharge optical emission spectroscopy (GDOES). Boron concentration peaks are observed corresponding to the boride formation. Boron distribution is discussed on the basis of theoretical predictions in the literature. It is concluded that diffusion of another element is necessary to explain the results with the second element influencing the solubility of boron.

Keywords

Boron Boride Parent Material Boron Concentration Diffusion Profile 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors thank the DFG research group (Graduiertenkolleg) 1229 “Stable and metastable multiphase systems for high temperature applications” and the DFG collaborative research center SFB/Transregio 103 “Superalloy single crystals—From atoms to turbine blades” for financial support of part of this work.

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2013

Authors and Affiliations

  1. 1.Institute of Science and Technology of Metals, Department of Materials Science and EngineeringUniversity of ErlangenErlangenGermany

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