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LU Quanbin, LONG Weimin, WANG Xin, DU Quanbin. Influence of trace Sc on intergranular corrosion properties of Al-Mg-Mn-Cr-Ti alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(7): 97-100.
Citation: LU Quanbin, LONG Weimin, WANG Xin, DU Quanbin. Influence of trace Sc on intergranular corrosion properties of Al-Mg-Mn-Cr-Ti alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(7): 97-100.
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Influence of trace Sc on intergranular corrosion properties of Al-Mg-Mn-Cr-Ti alloy

  • 1.

    State Key Laboratory of Advanced Brazing Filler Metals & Technology, Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450001, China

  • 2.

    Gemstones Machinery and Equipment Manufacturing Chengdu Branch, Chengdu 610052, China

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  • Received Date: August 06, 2015
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    • Abstract
  • The effect of trace Sc on the intergranular corrosion properties of Al-Mg-Mn-Cr-Ti alloy was investigated by intergranular corrosion test, the the microstructure of samples was examined with OM, SEM and EDS. The experimental results show that the addition of trace Sc could decrease the intergranular corrosion sensitivity and refine the grain size of as-cast Al-Mg-Mn-Cr-Ti alloy. The addition of trace Sc could reduce the gathering of Fe, Si impurities around grain boundary and modify the morphology and distribution of β-phase. It is found that the addition of Sc has obvious effect on intergranular corrosion property of Al-Mg-Mn-Cr-Ti alloy because Sc reduces the electrochemical corrosion in grain boundary.
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    • References (9)
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