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A diffusivities of point defects study of passive state on 316l and 2205 stainless steel

  • Xuequn Cheng*
  • , Xiaogang Li
  • , Chaofang Dong
  • *此作品的通讯作者
  • University of Science and Technology Beijing

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Corrosion sensitivity of 2205 and 316L stainless steel in 3.5% NaCl solution was studied by potentiodynamic polarization, EIS and Mott-Schottky. The results show that the 2205 duplex stainless steel has better corrosion resistance than 316L stainless steel and the results of EIS spectra measurements in different formation potential shows that the thickness of passive film formed on 2205 SS is on average thicker than that on 316L SS under the same formation potential. Further investigation by Mott-Schottky analysis proves that the diffusivity of the point defects was 3.67×10 -15cm 2/s for 316L SS and 2.8×10 -16cm 2/s for 2205 SS, it shows that the Dd value of 2205 SS decreases about ten times compared with that of 316L SS, a less-defective passive film can be formed on the 2205 duplex stainless steel.

源语言英语
主期刊名2010 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 - Proceedings
DOI
出版状态已出版 - 2010
已对外发布
活动Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010 - Chengdu, 中国
期限: 28 3月 201031 3月 2010

出版系列

姓名Asia-Pacific Power and Energy Engineering Conference, APPEEC
ISSN(印刷版)2157-4839
ISSN(电子版)2157-4847

会议

会议Asia-Pacific Power and Energy Engineering Conference, APPEEC 2010
国家/地区中国
Chengdu
时期28/03/1031/03/10

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