Formation of nano-sized crystals during plastic deformation in amorphous alloys

A. Ogura, M. Sato, R. Tarumi, M. Shimojo, K. Takashima, Y. Higo

Research output: Contribution to journalArticle

Abstract

Microstructural change in deformation bands was observed in a Ni-P amorphous alloy using transmission electron microscopy (TEM). Bending strain was applied to a micro-sized cantilever beam specimen. A TEM specimen was prepared from the micro-sized specimen with keeping the information on the relationship between the deformed direction and the specimen orientation. TEM observation in deformation bands revealed that plastic deformation induces the precipitation of nanocrystalline Ni particles. An orientation relationship between deformation direction and crystal orientation was obtained, that is, a (111) plane of all crystalline particles are parallel to the side surface of the specimen.

Original languageEnglish
JournalMaterials Research Society Symposium-Proceedings
Volume634
Publication statusPublished - 2001 Jan 1

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Keywords

  • Amorphous alloy
  • Crystallization
  • Nano structure
  • Plastic deformation
  • TEM observation

ASJC Scopus subject areas

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

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