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LP-EGR이 적용된 디젤 엔진 인터쿨러용 알루미늄 튜브의 내식성 향상

Corrosion Characteristics Improvement of Aluminium Tube for Diesel Engine Intercooler with LP-EGR(Low Pressure-Exhaust Gas Recirculation)

  • 안준 (현대자동차 금속재료연구팀) ;
  • 하석 (현대자동차 금속재료연구팀) ;
  • 곽동호 (현대자동차 금속재료연구팀) ;
  • 정병준 (현대자동차 금속재료연구팀)
  • Ahn, Joon (Metallic Materials Research Team, Hyundai-motor Company) ;
  • Ha, Seok (Metallic Materials Research Team, Hyundai-motor Company) ;
  • Kwak, Dong-Ho (Metallic Materials Research Team, Hyundai-motor Company) ;
  • Jung, Byung-Jun (Metallic Materials Research Team, Hyundai-motor Company)
  • 투고 : 2012.03.21
  • 심사 : 2012.05.16
  • 발행 : 2012.11.01

초록

Recently, various after-treatment systems, such as LP-EGR(Low Pressure-Exhaust Gas Recirculation), SCR(Selective Catalytic Reduction) and LNT(Lean NOx Trap), were developed to obey the stringent emission regulations of diesel engine. There are many researches on LP-EGR system because it has advantages of NOx reduction and low fuel consumption. But, condensation water is generated in internal of intercooler tube and it contains various types of anion that cause the corrosion of aluminium tube. In this study, it is examined that the condensation water effects on corrosion of aluminium tube. And method for improvement of corrosion characteristics is investigated using the dipping and electrochemical test.

키워드

참고문헌

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