温度对P110钢腐蚀行为的影响

中国腐蚀与防护学报

2009, Vol. 29

Issue (6): 493-498

研究报告

本期目录 | 过刊浏览

温度对P110钢腐蚀行为的影响

朱世东^1;2;尹志福¹;白真权²;魏建峰¹;周树根¹;田伟²

1. 西安交通大学材料科学与工程学院西安 710049
2. 中国石油天然气集团公司石油管力学和环境行为重点实验室西安 710065

INFLUENCES OF TEMPERATURE ON CORROSION BEHAVIOR OF P110 STEEL

ZHU Shidong^1;2; YIN Zhifu¹; BAI Zhenquan²; WEI Jianfeng¹;ZHOU Genshu¹; TIAN Wei²

1. School of Materials Science and Engineering; Xi'an Jiaotong University; Xi'an 710049
2. Key Laboratory for Mechanical and Environmental Behavior of Tubular Goods; CNPC; Xi'an 710065

全文: PDF(1977 KB)

摘要:

模拟油气田环境，采用高温高压釜进行失重法腐蚀实验，用扫描电子显微镜(SEM)、能散X射线谱仪(EDS)和X射线衍射(XRD)技术研究油管钢P110在不同温度下的CO₂ 腐蚀产物。结果表明：静态和流速为5 m/s时，随着温度的升高，P110钢的腐蚀速率先增大后减小，前者在100 ℃时达到最大，后者在60 ℃时达到最大，且在160 ℃时，两者腐蚀速率趋同；温度大于140 ℃时，流速对腐蚀速率的影响已不再明显，随着温度的继续升高，腐蚀速率变化趋于平缓。温度通过影响腐蚀产物膜的形貌、结构、化学组成、产物膜因子和膜的厚度等，进而影响材料的腐蚀速率。

关键词 ： P110钢, CO₂腐蚀, 腐蚀速率, 温度

Abstract：

Influences of temperature on CO₂ corrosion behavior of P110 steel were investigated in stimulated oil and gas field environments. The corrosion scales were analyzed by using SEM，EDS and XRD. Simultaneously, the corrosion rate was measured by the weight loss method. The results showed that the corrosion rate of P110 steel increased first and decreased subsequently with the increase of temperature at static state, and the maximal corrosion rate was presented at 100 ℃. Corrosion rate increased first and deceased subsequently with increasing temperature at 5 m/s too, the maximal corrosion rate was presented at 60 ℃ and the corrosion rate under dynamic and static state were equivalent approximately at 160 ℃. The effect about flow rate operated on corrosion rate was not obvious when temperature was more than 140 ℃, and there were lesser change of the corrosion rate with further increasing temperature. After analyzing, a conclusion can be drawn that temperature affected corrosion rates in that it changed the surface morphologies, constructions, compositions, corrosion scale factor, scale density of the material and so on.

Key words： P110 steel CO₂ corrosion corrosion rate temperature

收稿日期: 2008-04-11

ZTFLH:

TG174.3

基金资助:

中国石油天然气集团公司应用基础研究项目（06A40302）资助

通讯作者: 尹志福 E-mail: Yinzhifu919@sohu.com

Corresponding author: YIN Zhifu E-mail: Yinzhifu919@sohu.com

作者简介: 朱世东，男，1980年生，博士生，研究方向为材料腐蚀与防护

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引用本文:

朱世东尹志福白真权魏建峰周树根田伟. 温度对P110钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2009, 29(6): 493-498.
ZHU Shi-Dong, YUN Zhi-Fu, BO Zhen-Quan, LIU Hui, YUN Cheng-Xian. INFLUENCES OF TEMPERATURE ON CORROSION BEHAVIOR OF P110 STEEL. J Chin Soc Corr Pro, 2009, 29(6): 493-498.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2009/V29/I6/493

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