The Study on the Corrosion Behavior of Al-alloy Radiator for Automobile in Fresh Water

청수 중에서 자동차용 Al합금 방열기의 부식거동에 관한 연구

  • 임우조 (부경대학교) ;
  • 이상열 (포항 1대학) ;
  • 윤대영 (부경대학교 대학원)
  • Published : 2002.11.01


Most of all the mechanical devices are becoming more high-speed and high-power as well as their used condition being more pollution with rapid development in industrial part. So, it is necessary for these devices to equip cooling system to overcome that kind of severe using condition. Industrial development and income increase causes rapid increase in using fossilenergy and it results in accelerating environmental pollution owing to the increasement in emission of air pollution substance. Specially, fresh water like stream and river water is acidified. Therefore, corrosion damage is accelerated in radiator for automobile that is using acidified water. So, in this study, corrosion test was carried out in distilled and tap water for the investigation on the corrosion behavior of Al-alloy that is using as material for radiator of automobile The main results obtained are as follows According to increase of temperature, open circuit potential is decreased in fresh water. And open circuit potential after deaeration is lower than that before deaeration. Corrosion current density in distilled water is less drained than that of tap water. And Corrosion current density after deaeration is less drained than that before deaeration.


Radiator;Open circuit potential;Corrosion current density;Al-alloy;deaeration


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