[1]葛 睿,張 鈞.N80油管鋼在模擬油田CO2環境中的腐蝕行為[J].焊管,2019,42(8):1-6.[doi:10.19291/j.cnki.1001-3938.2019.8.001]
 GE Rui,ZHANG Jun.Corrosion Behavior of N80 Tubular Steel in Simulated Oilfield CO2 Environment[J].,2019,42(8):1-6.[doi:10.19291/j.cnki.1001-3938.2019.8.001]
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N80油管鋼在模擬油田CO2環境中的腐蝕行為()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期數:
2019年第8期
頁碼:
1-6
欄目:
試驗與研究
出版日期:
2019-08-28

文章信息/Info

Title:
Corrosion Behavior of N80 Tubular Steel in Simulated Oilfield CO2 Environment
文章編號:
10.19291/j.cnki.1001-3938.2019.8.001
作者:
葛 睿張 鈞
西安石油大學 材料科學與工程學院, 西安 710065
Author(s):
GE Rui ZHANG Jun
School of Material Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China
關鍵詞:
N80鋼CO2腐蝕溫度分壓
Keywords:
N80 steel CO2 corrosion temprature partial pressure
分類號:
TG172
DOI:
10.19291/j.cnki.1001-3938.2019.8.001
文獻標志碼:
A
摘要:
為了研究模擬CO2環境中溫度和CO2分壓對N80鋼腐蝕行為的影響,采用失重法和掃描電子顯微鏡分析了試樣的腐蝕速率、腐蝕形態和腐蝕產物膜形貌。結果表明,隨著溫度的升高,N80鋼的腐蝕速率呈先增大后減小的趨勢,90 ℃時達到最大值;溫度較低時,試樣表面附著的腐蝕產物較少,以均勻腐蝕為主;溫度升高,腐蝕產物膜增厚,疏松、不均勻,發生明顯的局部腐蝕;溫度較高時,腐蝕產物膜致密、穩定,又轉變為均勻腐蝕。隨著CO2分壓的升高,N80鋼的腐蝕速率逐漸增大,腐蝕產物膜較厚且不完整,局部腐蝕嚴重。
Abstract:
In order to study the effects of temperature and CO2 partial pressure on the corrosion of N80 steel in simulated CO2 environment, the corrosion rate, corrosion appearance and morphology of corrosion product film of the samples were analyzed by weight loss method and scanning electron microscope. The results showed that the corrosion rate of N80 steel increased firstly and then decreased as temperature increased, and the peak value of the corrosion rate occurred at 90 ℃. When the temperature was lower, the surface of sample was covered with a slight amount of corrosion products, and the corrosion type was mainly uniform corrosion. With the increase of temperature, the corrosion product film became thicker, loose and uneven, and obvious localized corrosion occurred. When the temperature was higher, the corrosion product film were compact and stable, and the corrosion type was transformed into uniform corrosion. With the increase of CO2 partial pressure, the corrosion rate of N80 steel increased gradually, and the corrosion product film was thicker and incomplet with severe localized corrosion.

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備注/Memo

備注/Memo:
收稿日期:2018-11-12
基金項目:西安石油大學《材料科學與工程》省級優勢學科資助項目(項目編號YS37020203);陜西省自然科學基礎研究計劃(項目編號2016JM5064)。
作者簡介:葛 睿(1992—),女,碩士研究生,主要從事金屬材料的腐蝕與防護研究。
更新日期/Last Update: 2019-09-29
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