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

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

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 emissio...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2013-05, Vol.44 (5), p.2226-2232
Hauptverfasser: Steuer, S., Singer, R. F.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Boron
Characterization and Evaluation of Materials
Chemistry and Materials Science
Exact sciences and technology
Materials Science
Metallic Materials
Metallurgy
Metals. Metallurgy
Nanotechnology
Nickel
Structural Materials
Superalloys
Surfaces and Interfaces
Thin Films
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Zusammenfassung: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.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-012-1597-3