RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Protection Behaviour of Surface Films Formed on AZ91D Magnesium Alloy in Nitrogen/1,1,1,2-Tetrafluoroethane Atmospheres

        M. I. Barrena,J. M. Gómez de Salazar,J. M. Vázquez,García-Cano,J. M. Guilemany 대한금속·재료학회 2014 METALS AND MATERIALS International Vol.20 No.4

        Protective surface coatings on an AZ91D magnesium alloy were formed in an atmosphere mixture ofnitrogen and 1,1,1,2-tetrafluoroethane (HFC-134a). The surface composition and microstructure were characterizedusing X-ray diffraction analysis and scanning electron microscopy, respectively. The cross-sectionmorphologies of the coatings show that an increase in conversion time results in an increase in thecontinuity and compactness of the coating generated on the surface of the AZ91D alloy. The corrosionresistance tests performed by immersion into 3.5% NaCl solutions were investigated by electrochemicalmeasurements. The results showed that the coated samples had higher corrosion resistance than the uncoatedalloy. On the other hand, the corrosion density of the coated samples decreased by increasing theconversion time by about two orders of magnitude, compared with the un-coated samples. This behaviouris attributed to the formation of a protective surface film constituted mainly for MgF2, together with otherphases. The nature of these phases depends on the process conditions.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼