Russian Metallurgy (Metally)

, Volume 2019, Issue 10, pp 1024–1030 | Cite as

Structure and Mechanical Properties of the Layered Composites Made of Multicomponent Niobium Alloys and Hardening Silicon–Carbon Compounds Formed by Solid-Phase Sintering

  • V. P. KorzhovEmail author
  • V. M. Kiiko
  • I. S. Zheltyakova

Abstract—The microstructure and the mechanical properties of the layered composite materials fabricated by diffusion welding of stacks of niobium foils with a one-sided silicon-containing multicomponent metallic coating are studied. The multilayer structure of the composites consists of a viscoplastic niobium alloy and niobium compounds with silicon and carbon. The bending tensile strength of the composites is 200–320 and 260–420 MPa at 1100 and 1300°C, respectively, and is 320–550 MPa at room temperature.

Keywords: niobium alloy layered composite material carbide diffusion welding solid-phase interaction multilayered structure strength fracture toughness 



This work was supported by the Russian Foundation for Basic Research, project no. 17-03-00687 A.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. P. Korzhov
    • 1
    Email author
  • V. M. Kiiko
    • 1
  • I. S. Zheltyakova
    • 1
  1. 1.Institute of Solid State Physics, Russian Academy of SciencesChernogolovkaRussia

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