埋地钢质管道应力腐蚀开裂特征和影响因素
Characteristics and Influence Factors of SCC in Buried Steel Pipeline
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- DOI:
- 作者:
- 闫茂成, 翁永基
YAN Mao-cheng, WENG Yong-ji
- 作者单位:
- 石油大学, 北京 102249
University of Petroleum, Beijing 102200, China
- 关键词:
- 管道;应力腐蚀开裂;阴极保护;涂层;影响因素
pipeline;stress corrosion cracking;cathodic protection coating;influence factor
- 摘要:
- 对威胁埋地管道安全运行的两类开裂(高pH应力腐蚀开裂和近中性应力腐蚀开裂)的发生条件和形貌特征进行了比较,具体讨论了溶液环境、阴极保护、涂层、温度、电位腐蚀产物膜、应力应变和钢管材质等因素对埋地钢质管道应力腐蚀开裂过程的影响,为识别和预防管道的这类腐蚀断裂提供了理论依据。
With regard to two forms of stress corrosion cracking SCC which threaten the integrity of buried pipeline i.e. the high pH SCC and the near-neutral SCC comparisons are made for their occurrence conditions and characteristics. And several influence factors such as environmental solution cathodic protection coating temperature potential corrosion produced membrane stress and strain pipe materials are also discussed in detail.2005,2(2): 6-9 收稿日期：2004-7-1分类号：TG172.9基金项目：中国石油管道公司科学研究与技术开发项目(010203-01)作者简介：闫茂成(1976-),男,山东荷泽人,石油大学(北京)在读博士生,从事材料腐蚀与防护领域的研究.参考文献：
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