Research of microstructure and biocompatible properties on Fe-Al-Mn alloy with recast layer by electro-discharge machining

Sung Long Chen, Chang Chih Chen, Keng Liang Ou, Ming Hong Lin

Research output: Contribution to journalArticle

Abstract

The biocompatibility and microstructure of Fe-Al-Mn and electro-discharged Fe-Al-Mn alloys were investigated by optical microscopy, x-ray diffraction, transmission electron microscopy, scanning electron microscopy, and x-ray photoelectron spectroscopy. Electro-discharged Fe-Al Mn alloys possess well-biocompatible performance than that without treatment. A recast layer was formed on the surface of the Fe-Al-Mn alloy following electro-discharged machining and the thickness of the recast layer is about 40-110 μm. In addition, nanocrystallization and oxidation occurred on the recast layer following electro-discharged machining, γ-phase and ferrous carbide were formed after electro-discharging, profoundly impacting the properties of recast layer. The γ-phase and ferrous carbide are nanostructures. The nano-(γ-phase) is changed to nano-(ferrous carbide) by electro-discharging reaction during EDM.

Original languageEnglish
Pages (from-to)671-677
Number of pages7
JournalJournal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Volume27
Issue number6
Publication statusPublished - Dec 2006

Keywords

  • Biocompatibility and electro-discharge machining
  • Fe-Al-Mn alloy
  • Microstructure
  • Recast layer

ASJC Scopus subject areas

  • Engineering(all)

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