尹力,曹顺安,吴善宏,肖丽.Q235钢在海水及海水淡化一级RO 产水中的腐蚀特性研究[J].表面技术,2012,(3):43-46.
YIN Li,CAO Shun-an,WU Shan-hong,XIAO Li.Research on Corrosion Properties of Q235 Carbon Steel in Seawater and One-stage RO Water of Seawater[J].Surface Technology,2012,(3):43-46 |
| Q235钢在海水及海水淡化一级RO 产水中的腐蚀特性研究 |
| Research on Corrosion Properties of Q235 Carbon Steel in Seawater and One-stage RO Water of Seawater |
| 投稿时间：2012-01-11 修订日期：2012-06-20 |
| DOI： |
| 中文关键词: Q235钢 一级RO 产水 海水 腐蚀特性 |
| 英文关键词:Q235 carbon steel one-stage RO water seawater corrosive properties |
| 基金项目: |
|
|
| Author | Institution |
| YIN Li | College of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China |
| CAO Shun-an | College of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China |
| WU Shan-hong | Zhejiang Zheneng Yueqing Power Generation Co., Ltd., Wenzhou 325609, China |
| XIAO Li | Zhejiang Zheneng Yueqing Power Generation Co., Ltd., Wenzhou 325609, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 采用动态挂片实验,研究了Q235钢在海水及海水淡化一级RO 产水中的腐蚀特性,并分析了试片表面的形貌及腐蚀产物成分,以探究Q235钢在一级RO 产水中高速腐蚀的原因。结果表明:随时间的延长,Q235钢在海水中的腐蚀速度下降,并趋于稳定,而在一级RO 产水中的腐蚀速度逐渐上升,并维持于高位;Q235钢在两种水体中的腐蚀产物,组分相同,但各组分的相对含量及变化趋势有很大差异;一级RO 产水中,Q235钢生成的腐蚀产物为球状颗粒,没有海水中产生的针状腐蚀产物致密;一级RO 产水的弱酸性促进γ-FeOOH 迅速转化为导电氧化物Fe3O4,生成的锈层不连续,不能阻碍氧扩散过程的进行,这是导致Q235钢高速腐蚀的主要原因。 |
| 英文摘要: |
| In order to seek for the reasons why one-stage RO of seawater is corrosive to Q235 carbon steel, dynamic coupon tests were carried out to research on the corrosion properties of Q235 carbon steel in seawater and one-stage RO of seawater, and the surface appearance of plates and corrosion components were analyzed. Results indicate that, corrosion rate of Q235 carbon steel in seawater declines gradually with corrosion time going and approaches to steady; While in one-stage RO of seawater, corrosion rate increases and becomes steady gradually. The components of corrosion products in these two water bodies are same, but their relative content and change tendency are quit different. The production in RO water, which is ball-shaped, is less compact than the needle-shaped production engendered in sea-water. The weak acidity of RO water promotes the transform ofγ-FeOOH to conductive Fe3O4. The rust is disconnected and can't impede the transition of oxygen. These are the reasons leading to high-speed corrosion of Q235. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号