SCC initiation for X65 pipeline steel in the "high" pH carbonate/bicarbonate solution
文献类型：期刊论文
| 作者 | J. Q. Wang ; A. Atrens |
| 刊名 | Corrosion Science
 |
| 出版日期 | 2003 |
| 卷号 | 45期号:10页码:2199-2217 |
| 关键词 | steel SEM stress corrosion cracking initiation stress-corrosion cracking carbonate-bicarbonate solution iron x52 |
| ISSN号 | 0010-938X |
| 中文摘要 | The initiation of stress corrosion cracking (SCC) was studied using scanning electron microscope observations of linearly increasing stress test specimens. SCC initiation from the following surfaces was studied: (i) initiation from the commercial pipe surface covered by the Zn coating, (ii) initiation from a mechanically polished surface with a deformed layer, and (iii) initiation from an electro-polished surface. SCC initiation involved different features for these surfaces as follows. (i) For the Zn coated commercial pipe surface, a crack in the Zn coating led to the dissolution of the deformed layer and when the deformed layer was penetrated, intergranular SCC initiation became possible. (ii) For a mechanically polished surface with a deformed layer, cracks in the surface oxide concentrated the anodic dissolution to such an extent that there was transgranular SCC in the deformed layer. SCC was intergranular when the deformed layer had been penetrated. Transgranular stress corrosion cracks were stopped at ferrite grain boundaries (GBs) oriented perpendicular to the SCC propagation direction. (iii) For an electro-polished surface, the surface oxide film was cracked at many locations, but intergranular SCC only propagated into the steel when the oxide crack corresponded to a GB. An oxide crack away from a GB is expected to be healed. The observed SCC initiation mechanism was not associated with simple preferential chemical attack of the ferrite GBs. (C) 2003 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36047]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. Q. Wang,A. Atrens. SCC initiation for X65 pipeline steel in the "high" pH carbonate/bicarbonate solution[J]. Corrosion Science,2003,45(10):2199-2217. |
| APA | J. Q. Wang,&A. Atrens.(2003).SCC initiation for X65 pipeline steel in the "high" pH carbonate/bicarbonate solution.Corrosion Science,45(10),2199-2217. |
| MLA | J. Q. Wang,et al."SCC initiation for X65 pipeline steel in the "high" pH carbonate/bicarbonate solution".Corrosion Science 45.10(2003):2199-2217. |
入库方式： OAI收割
来源：金属研究所
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