焊管2011，Vol.34Issue(10)：5-8,4.
微电极扫描法对HFW焊缝沟槽腐蚀敏感性研究
Study on HFW Weld Groove Corrosion Sensitivity by Microelectrode Scanning Method
毕宗岳 1任永峰 2井晓天3
作者信息
- 1. 西安理工大学材料学院,西安710048
- 2. 国家石油天然气管材工程技术研究中心,陕西宝鸡721008
- 3. 宝鸡石油钢管有限责任公司钢管研究院,陕西宝鸡721008
- 折叠
摘要
Abstract
Aiming at some problems existed in detecting and assessing HFW pipe groove corrosion, such as the difficulty of sampling, long testing cycle and the electrochemical performance is unable to obtain during corrosion process. In this paper, an approach was proposed, which utilize scanning vibrating electrode technique (SVET) to test the corrosion current density on different region of the sample without physical contact on sample surface, and then the weld groove corrosion sensitivity can be characterized based on the results of the said tests. In comparison with the results of the using direct soaking test method, the results of two kinds of test methods are basic coincidence. It shows that the test method with SVET is an effective method for assessing HFW pipe weld groove corrosion.关键词
HFW焊管/沟槽腐蚀/电极扫描Key words
HFW pipe/ groove corrosion/ electrode scanning分类
矿业与冶金引用本文复制引用
毕宗岳,任永峰,井晓天..微电极扫描法对HFW焊缝沟槽腐蚀敏感性研究[J].焊管,2011,34(10):5-8,4.
