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Effect of heat treatment on the fine structure and properties of a niobium-base superalloy

Authors
  • Shaboldo, O. P.1
  • Vitorskii, Ya. M.1
  • Sagaradze, V. V.2
  • Volkova, E. G.2
  • 1 AO TsNIIM, ul. Paradnaya 8, St. Petersburg, 191014, Russia , St. Petersburg (Russia)
  • 2 Russian Academy of Sciences, Institute of Metal Physics, Ural Branch, ul. S. Kovalevskoi 18, Ekaterinburg, 620990, Russia , Ekaterinburg (Russia)
Type
Published Article
Journal
The Physics of Metals and Metallography
Publisher
Pleiades Publishing
Publication Date
Dec 15, 2016
Volume
117
Issue
12
Pages
1281–1287
Identifiers
DOI: 10.1134/S0031918X16120140
Source
Springer Nature
Keywords
License
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Abstract

The effect of conditions of heat treatment on the microstructure and mechanical characteristics of an LN-1 alloy (Nb–10W–5Mo–1.5Zr–0.15C), which is used to produce high-temperature springs, has been studied. The temperature conditions of annealing of the alloy have been chosen, under which the fairly high ductility needed for the subsequent deformation of the alloy is achieved. Structural examinations have revealed the formation of fine niobium–zirconium carbides in the matrix in the course of the thermomechanical strengthening of the alloy, which involves preannealing.

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