Machinability exploration for high-entropy alloy FeCrCoMnNi by ultrasonic vibration-assisted diamond turning

Lin Zhang, Takeshi Hashimoto, Jiwang Yan

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

High-entropy alloy (HEA) is an emerging alloy which consists of five or more metallic elements with equimolar concentrations and exhibits excellent mechanical properties at cryogenic temperature. However, its machinability is almost unknown. In this study, high frequency one-dimensional ultrasonic vibration-assisted diamond turning (UVDT) experiments were conducted on an FeCrCoMnNi-based HEA to investigate the micro-nanoscale material removal mechanisms. Compared with conventional diamond turning, UVDT produced thinner chips, lower cutting forces, less tool wear and better surface integrity. Due to the ultrasonic vibration-assisted burnishing effect, surface scratches were significantly eliminated. A freeform surface was test-fabricated with optical-level finish.

Original languageEnglish
Pages (from-to)37-40
Number of pages4
JournalCIRP Annals
Volume70
Issue number1
DOIs
Publication statusPublished - 2021 Jan

Keywords

  • High-entropy alloy
  • Machinability
  • Ultrasonic

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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