3Cr低合金管線鋼及焊接接頭的CO<sub>2</sub>腐蝕行為

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3Cr低合金管線鋼及焊接接頭的CO₂腐蝕行為

胡麗華, 張雷, 許立寧, 路民旭

文章導航 > 工程科學學報 > 2010 > 32(3): 345-350

胡麗華, 張雷, 許立寧, 路民旭. 3Cr低合金管線鋼及焊接接頭的CO2腐蝕行為[J]. 工程科學學報, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

引用本文:

胡麗華, 張雷, 許立寧, 路民旭. 3Cr低合金管線鋼及焊接接頭的CO₂腐蝕行為[J]. 工程科學學報, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

HU Li-hua, ZHANG Lei, XU Li-ning, LU Min-xu. CO2 corrosion behavior of 3Cr low-alloy pipeline steel and weld joints[J]. Chinese Journal of Engineering, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

Citation:

HU Li-hua, ZHANG Lei, XU Li-ning, LU Min-xu. CO₂ corrosion behavior of 3Cr low-alloy pipeline steel and weld joints[J]. Chinese Journal of Engineering, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

胡麗華, 張雷, 許立寧, 路民旭. 3Cr低合金管線鋼及焊接接頭的CO2腐蝕行為[J]. 工程科學學報, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

引用本文:

胡麗華, 張雷, 許立寧, 路民旭. 3Cr低合金管線鋼及焊接接頭的CO₂腐蝕行為[J]. 工程科學學報, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

HU Li-hua, ZHANG Lei, XU Li-ning, LU Min-xu. CO2 corrosion behavior of 3Cr low-alloy pipeline steel and weld joints[J]. Chinese Journal of Engineering, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

Citation:

HU Li-hua, ZHANG Lei, XU Li-ning, LU Min-xu. CO₂ corrosion behavior of 3Cr low-alloy pipeline steel and weld joints[J]. Chinese Journal of Engineering, 2010, 32(3): 345-350. doi: 10.13374/j.issn1001-053x.2010.03.012

3Cr低合金管線鋼及焊接接頭的CO₂腐蝕行為

doi: 10.13374/j.issn1001-053x.2010.03.012

北京科技大學材料科學與工程學院, 北京 100083

基金項目:

北京市自然科學基金重大項目(No.3080001)

作者簡介:
胡麗華(1980-),女,博士研究生,E-mail:hulihua0701@126.com;路民旭(1954-),男,教授,博士生導師

中圖分類號: TG172.82
計量
- 文章訪問數: 142
- HTML全文瀏覽量: 26
- PDF下載量: 4
- 被引次數: 0
出版歷程
- 收稿日期: 2009-07-21

CO₂ corrosion behavior of 3Cr low-alloy pipeline steel and weld joints

School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要: 采用高溫、高壓反應釜和電化學技術對3Cr低合金管線鋼及焊接接頭的CO₂腐蝕行為進行研究.結果表明,3Cr低合金管線鋼在高溫、高壓CO₂腐蝕環境中表面生成致密的富Cr腐蝕產物膜,這是其抗CO₂腐蝕性能優于X65鋼的主要原因.3Cr低合金管線鋼焊接接頭中母材、熱影響區和焊縫的腐蝕產物膜特征相似,結構致密,均存在Cr元素的富集.與X65鋼相比,3Cr低合金管線鋼的自腐蝕電位較正,自腐蝕電流密度較低.在CO₂腐蝕介質中,3Cr低合金管線鋼焊接接頭的母材區域作為陽極首先發生腐蝕,焊縫和熱影響區作為陰極受到保護.
- 低合金鋼 /
- 管線鋼 /
- 焊接接頭 /
- CO₂腐蝕
Abstract: The CO₂ corrosion behavior of 3Cr low-alloy pipeline steel and its weld joints were researched with a high-pressure high-temperature autoclave and electrochemical techniques.The results showed that the corrosion product scales enriched Cr element were compact,which is the main reason that the CO₂ corrosion resistance of 3Cr low-alloy pipeline steel is superior to that of X65 steel.The product scales of the base metal,heat affected zone (HAZ) and weld metal in 3Cr low alloy pipeline steel weld joints were similar with each other,with Cr enrichment and compact structure.Compared with X65 steel,the corrosion potential of 3Cr low alloy pipeline steel was more positive and the corrosion current density was lower.The base metal of 3Cr low alloy pipeline steel weld joints as an anode would be suffered corrosion firstly,and the weld metal and HAZ of the weld joints as cathodes would be protected.
- low-alloy steel /
- pipeline steel /
- weld joint /
- CO₂ corrosion

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計量

文章訪問數: 142
HTML全文瀏覽量: 26
PDF下載量: 4
被引次數: 0

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