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.
|Number of pages||7|
|Journal||Journal 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|
|Publication status||Published - Dec 2006|
- Biocompatibility and electro-discharge machining
- Fe-Al-Mn alloy
- Recast layer
ASJC Scopus subject areas