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has been cited by the following article:

• TITLE: Effect of Scandium Doping on The Corrosion Resistance and Mechanical Behavior of Al-3Mg Alloy in Neutral Chloride Solutions

  AUTHORS: Zaki Ahmad, Abdul Aleem B. Aleem, Mohammad Abbas

  KEYWORDS: Corrosion, Polarization, Passive, Pitting, Strengthening Effect, Pinning, Grain Boundaries, Precipitates, Films, Passive Layers

  JOURNAL NAME: Materials Sciences and Applications, Vol.2 No.4, March 22, 2011

  ABSTRACT: Scandium addition significantly alters the corrosion resistance and mechanical strength of Al-3 Mg alloys. The addition of 0.3% - 0.4% scandium with 0.14% zirconium has a beneficial effect on the corrosion resistance of the alloy under smoothly stirred condition. Addition of 0.3% Sc significantly suppresses corrosion under dynamic flow conditions. It also creates an optimal strengthening effect on the alloys. The corrosion resistance is attributed to the strong passive layer of Sc2O3 formed on the ultrafine coherent precipitates of Al3Sc. A strong evidence of the pinning of grain bounda-ries by coherent nano Al3Sc precipitates is responsible for the strengthening effect.