[1]张念涛,徐连勇,韩永典,等.X65/316L耐蚀合金内衬管焊接接头CO2腐蚀行为研究[J].焊管,2012,35(1):8-12.[doi:1001-3938(2012)01-0008-05]
 ZHANG Nian-tao,XU Lian-yong,HAN Yong-dian,et al.Study on the CO2 Corrosion Behavior of X65/316L Corrosion Resistant Alloy Liner Pipe Welded Joint[J].,2012,35(1):8-12.[doi:1001-3938(2012)01-0008-05]
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X65/316L耐蚀合金内衬管焊接接头CO2腐蚀行为研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
35
期数:
2012年第1期
页码:
8-12
栏目:
试验与研究
出版日期:
2012-01-28

文章信息/Info

Title:
Study on the CO2 Corrosion Behavior of X65/316L Corrosion Resistant Alloy Liner Pipe Welded Joint
文章编号:
1001-3938(2012)01-0008-05
作者:
张念涛1徐连勇2韩永典2刘永贞1
(1. 海洋石油工程股份有限公司建造公司焊接实验室,天津300452;
2.天津大学 材料科学与工程学院,天津300072)
Author(s):
ZHANG Nian-tao1 XU Lian-yong2 HAN Yong-dian2 LIU Yong-zhen1
( 1. Welding Lab, Construction Company, Offshore Oil Engineering Co., Ltd., Tianjin 300452,China;
2. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China)
关键词:
CO2腐蚀耐蚀合金内衬管焊接接头腐蚀速率
Keywords:
 CO2 corrosion corrosion resistant alloy liner pipe welded joint corrosion rate
分类号:
TG172.3
DOI:
1001-3938(2012)01-0008-05
文献标志码:
A
摘要:
在模拟CO2腐蚀环境中,采用高温高压釜对耐蚀合金内衬管内层不锈钢焊接接头的CO2腐蚀行为进行了试验研究。结果表明,焊接接头随着腐蚀温度的升高,腐蚀产物膜越来越致密,温度达到120 ℃时,有开裂趋势,所以腐蚀速率随温度升高先降低后增加。通过EDS分析结果可知,耐蚀合金内衬管内层发生CO2腐蚀的产物可能为FeCO3和Cr2O3的混合物。经去膜后焊接接头均匀且较为光亮,没有局部腐蚀或点蚀特征,焊接接头CO2腐蚀过程均属于均匀腐蚀。
Abstract:
The CO2 corrosion behavior of corrosion resistant alloy liner pipe welded joint was studied by high temperature high pressure autoclave in the simulated CO2 environment. The results indicated that the corrosion product film become thicker and thicker with corrosion temperature increasing, when the temperature is at 120 ℃, the corrosion product film tend to craze, so the corrosion rate firstly decrease and then increase with temperature increasing. The corrosion product maybe is mixture of FeCO3 and Cr2O3 according to the EDS analysis results. After removing the corrosion product film, the surface of the welded joint was uniform and bright, no local or pitting corrosion character was observed. Hence, the corrosion type was uniform corrosion.

参考文献/References:

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备注/Memo

备注/Memo:
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作者简介:张念涛(1985-),男,黑龙江人,硕士,工程师,主要从事海洋石油工程焊接工艺与技术的研发工作。
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