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A drawback of acid cleaning as surface finishing of magnesium (Mg) surface is the absence of a protective oxide film on its surface. Acid-alkaline treatment is proposed to enhance the surface corrosion resistance of AMX601 Mg alloy. Acid-alkaline treatment was conducted by first dipping the alloy in HNO 3 -H 3 PO 4 solution and then immersing the alloy in NaOH solution. The potentiodynamic polarization test in 0.9% NaCl solution at 37°C revealed a nobler corrosion potential of −1.36 V Ag/AgCldoi:10.7454/mss.v24i1.11910 fatcat:qmfckbcrc5hkrkhn5755imubuu