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The characteristic of surface treatment about magnesium alloy

Plasma electrolyte oxidation (PEO) surface treatment of magnesium alloy, an optical analysis method through reflection spectra were measured. As a result, the sample is formed on the membrane form of MgO or Mg(OH)2 is in the form of oxide. The wavelength energy of surface treatment of magnesium alloy sample observed 0.23eV red shift. The measured reflectIance spectra observed with the three different signals. This is due to Mg(OH)2 oxide layer formed on porous hole.

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