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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The aim of the present study was to investigate the corrosion resistance and characteristics of passive layer between naturally passivated and chemically passivated duplex stainless steel, UNS S31803 (EN 1.4462) using CPT, XPS, and EIS. The treatment of HNO3(II) and HNO3(III) in ASTM A 967 was applied. In case of chemically passivated specimen, CPT of HNO3(II) and HNO3(III) were higher than that of naturally passivated specimen. In addition, from XPS results, the protectiveness index (Cr/(Fe+Cr)) of chemically passivated specimens was also higher than that of naturally passivated specimen. The reason for this result is considered due to post-cleaning treatment in chemical passivation process, that is, immersion in Na2Cr3O7 solution. The fact that HNO3(II) passivation treatment showed the highest film resistance and ‘n’, which is exponent related with constant phase element (CPE) of passivation film, was in good agreement with results of CPS and XPS. The chemical passivation treatment was an effective method to improve corrosion resistance of duplex stainless steel.
목차
Abstract
1. 서론
2. 실험 방법
3. 결과 및 고찰
4. 결론
참고문헌
참고문헌 (8)
참고문헌 신청
1. [기타자료] - I. A. Armas / 2007 / Patents on Mechanical Engineering / 2008, 1 : 51 ~ 57
2. [기타자료] - / 2009 / Practical Guidelines for the Fabrication of Duplex Stainless Steels, 2nd edition / International Molybdenum Association : 4 ~
3. [학술지(정기간행물)] - C. Donik / 2009 / / Appl. Surf. Sci. 255 : 7056 ~
4. [학술지(정기간행물)] - M. Vayer / 2000 / / J. Mater. Sci. 35 : 2581 ~
5. [기타자료] - / / Standard Specification for Che-mical Passivation Treatments for Stainless Steel Parts / American Society for Testing and Materials A967-05
2. [기타자료] - / 2009 / Practical Guidelines for the Fabrication of Duplex Stainless Steels, 2nd edition / International Molybdenum Association : 4 ~
3. [학술지(정기간행물)] - C. Donik / 2009 / / Appl. Surf. Sci. 255 : 7056 ~
4. [학술지(정기간행물)] - M. Vayer / 2000 / / J. Mater. Sci. 35 : 2581 ~
5. [기타자료] - / / Standard Specification for Che-mical Passivation Treatments for Stainless Steel Parts / American Society for Testing and Materials A967-05
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UCI(KEPA) : I410-ECN-0101-2014-581-000613499