Radial dependence of the microstructure in a HPT Cu-Zr-Ti disc

Zs Kovács, S. Hóbor, P. J. Szabó, J. Lendvai, A. P. Zhilyaev, Á Révész

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Discs of Cu60Zr20Ti20 (at.%) composition were produced by high pressure torsion. Radial dependence of the microstructure was monitored by X-ray diffraction and scanning electron microscopy. The inhomogeneous microstructure of the central region consists of particles of about 50 μm and a surrounding matrix. With increasing radius, abrupt transitions take place in the morphology: first the large particles were attrited into lamellae then they transform into a homogeneous microstructure. Microindentation measurements revealed that the hardness showed a significant maximum with refining microstructure.

Original languageEnglish
Pages (from-to)1139-1142
Number of pages4
JournalMaterials Science and Engineering A
Volume449-451
DOIs
Publication statusPublished - Mar 25 2007

Keywords

  • Cu-Zr-Ti
  • High pressure torsion (HPT)
  • Nanoindentation
  • Plastic deformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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