Corrosion behavior of Al-Fe alloy metastable phases produced by laser surface remelting technic

Moises Meza Parionaa
2018 Advances in Tissue Engineering & Regenerative Medicine Open Access  
Laser surface remelting (LSR) treatment was performed to Al-2.0 wt.% Fe alloy with a 2 kW Yb-fiber laser (IPG YLR-2000S). Characterization of substrate and laser-treated material were executed using different techniques, i.e., microstructure was analyzed by optical microscope, SEM, low-angle X-ray diffraction (LAXRD) and corrosion test was made in aerated solution of 0.1 mol/L of H 2 SO 4 at 25°C. As result was shown micrograph of LSRtreated material, it displaying a fine cellular structure, as
more » ... lular structure, as well as existence of certain nanoporosities and similar a nano-dendritic growth was observed too. Characteristic of melted zone was constituted of metastable phases according to x-rays result and corrosion behavior as a result of LSR-treated sample, which it was shown to be more resistant to corrosion than untreated sample. A comparative study was carried out of cyclic polarization of the laser-treated and untreated samples, demonstrating that LSR-treated sample propitious the passivity on the surface and so reduced the corrosion phenomena, wherefore, this type of laser-treated alloy can be applied in the aerospace, aeronautic, automobilist industries and implant material in humans. Citation : Parionaa MM, Micene KT, Zaraa AJ. Corrosion behavior of Al-Fe alloy metastable phases produced by laser surface remelting technic. Adv Tissue Eng Regen Med Open Access. 2018;4(3):57-62. Citation: Parionaa MM, Micene KT, Zaraa AJ. Corrosion behavior of Al-Fe alloy metastable phases produced by laser surface remelting technic. Adv Tissue Eng Regen Med Open Access. 2018;4(3):57-62. Citation: Parionaa MM, Micene KT, Zaraa AJ. Corrosion behavior of Al-Fe alloy metastable phases produced by laser surface remelting technic. Adv Tissue Eng Regen Med Open Access. 2018;4(3):57-62. Citation: Parionaa MM, Micene KT, Zaraa AJ. Corrosion behavior of Al-Fe alloy metastable phases produced by laser surface remelting technic. Adv Tissue Eng Regen Med Open Access. 2018;4(3):57-62. Citation: Parionaa MM, Micene KT, Zaraa AJ. Corrosion behavior of Al-Fe alloy metastable phases produced by laser surface remelting technic. Adv Tissue Eng Regen Med Open Access. 2018;4(3):57-62.
doi:10.15406/atroa.2018.04.00079 fatcat:m3oi2hojz5cpjctlut2jn6zk74