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Corrosion behaviour of aluminium Al 6013-20 SiC(P) at controlled velocities and elevated temperatures

机译:铝Al 6013-20 SiC(P)在受控速度和高温下的腐蚀行为

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The corrosion behaviour of aluminium alloy 6013-20 SiC(P) at controlled velocities and elevated temperatures was investigated by electrochemical studies. The alloy in temper T4 (solution treated, quenched and naturally aged) showed a higher resistance to corrosion compared to the annealed and as fabricated tempers. It exhibited a decreased resistance to corrosion in 3·5 wt-% NaCl solution containing suspended polystyrene particles at solution velocities 1-3 m s-1. No significant reduction in corrosion resistance was observed in environmental chamber studies. Alloy Al 6013-20 SiC(P) offered good resistance to corrosion in salt spray chamber. The secondary phase intermetallic precipitates were the preferred sites for localised corrosion.
机译:通过电化学研究研究了6013-20 SiC(P)铝合金在受控速度和高温下的腐蚀行为。与退火态和加工态相比,T4态(固溶处理,淬火和自然时效)的合金具有更高的耐腐蚀性。在溶液速度为1-3 m s -1 的含悬浮聚苯乙烯颗粒的3·5 wt%NaCl溶液中,其耐腐蚀性降低。在环境室研究中未观察到耐腐蚀性的显着降低。 Al 6013-20 SiC(P)合金在盐雾室中具有良好的耐腐蚀性。第二相金属间沉淀是局部腐蚀的优选部位。

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  • 来源
    《Corrosion Engineering, Science and Technology》 |2009年第4期|312-320|共9页
  • 作者

    Aleem B. J. Abdul; Ahmad Z.;

  • 作者单位

    Mechanical Engineering King Fahd University of Petroleum and Minerals KFUPM 590 DHAHARAN EP 3126,1 Saudi Arabia, Email: abaleem@kfupm.edu.sa;

    Mechanical Engineering King Fahd University of Petroleum and Minerals KFUPM 590 DHAHARAN EP 3126,1 Saudi Arabia;

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