Fillability and imprintability of high-strength Ni-based bulk metallic glass prepared by the precision die-casting technique

Mamoru Ishida, Hideki Takeda, Daichi Watanabe, Kenji Amiya, Nobuyuki Nishiyama, Kazuhiko Kita, Yasunori Saotome, Akihisa Inoue

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

The fillability and imprintability of a Ni-based bulk metallic glass (BMG) prepared by the precision die-casting was investigated. A three-dimensional microgear made of Ni-based BMG is successfully prepared by the precision die-casting technique. The cast Ni-based BMG has excellent fillability against a microindentation formed by Vickers indentation, and the filling area obtained using a confocal scanning microscope reaches 99%. In addition, the cast Ni-based BMG exhibits excellent imprintability of the die surface even on a nanometer scale. It is therefore concluded that the Ni-based BMG is suitable as a material for micromachines due to its superior fillability and imprintability.

Original languageEnglish
Pages (from-to)1239-1244
Number of pages6
JournalMaterials Transactions
Volume45
Issue number4
DOIs
Publication statusPublished - 2004 Apr 1

Keywords

  • Imprintability
  • Micromachine parts
  • Precision die-casting
  • Surface roughness

ASJC Scopus subject areas

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

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