中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 金属研究所
  3. 中国科学院金属研究所
Corrosion Behaviour of Carbon Steel Fasteners in Neutral Chloride Solution

文献类型：期刊论文

作者Daniel, Enobong Felix1,2; Dong, Junhua1,2; Li, Xiaofang1,2; Etim, Ini-Ibehe Nabuk3,5; Udoh, Inime Ime4; Ma, Rongyao1,2; Chen, Lei1,2; Wang, Changgang1,2
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2021-08-12
页码14
关键词Bolt and nut Galvanic current density Zero resistance ammetry (ZRA) Coupling potential Differential aeration cell Carbon steel fasteners
ISSN号1006-7191
DOI10.1007/s40195-021-01284-4
通讯作者Dong, Junhua(jhdong@imr.ac.cn) ; Wang, Changgang(cgwang@imr.ac.cn)
英文摘要An experimental model for simulating the corrosion of carbon steel fasteners (bolt and nut) composed of a contact carbon steel electrode (CCSE) and an exposed bare carbon steel plate electrode (BCSE) was designed. The effect of coupling on the corrosion process of the galvanically coupled carbon steel electrode was evaluated and compared with the self-corrosion process observed independently at the exposed and contact regions. Results obtained indicated that at an equal area ratio and uncoupled conditions, the corrosion rate is accelerated in the surface directly exposed to bulk solution compared to the bolt surface in contact with the nut. A coupling current was recorded when the exposed surface (BCSE) was electrically connected with the contact surface (CCSE); with the CCSE acting as the anode thereby suppressing the corrosion process in the exposed surface. By implication, the galvanic coupling between CCSE and BCSE increased the corrosion rate of CCSE. The difference in oxygen supply was responsible for the coupling effect observed in the system as there was no decrease in the solution pH. Moreover, varying the cathode-to-anode area (S-c/S-a) ratio significantly influenced the corrosion current density as increased S-c/S-a ratio resulted in an accelerated galvanic corrosion process. The corroded surfaces and interfaces were analysed using stereomicroscopy and scanning electron microscopy. X-ray diffractometry was adopted for corrosion product characterization. The results obtained showed supportive evidence of the corrosion behaviour in carbon steel fasteners.
资助项目National Natural Science Foundation of China[51801219] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2019193] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[KGFZD-135-19-02] ; National Key Research Development Program of China[2017YFB0702302]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000684498300002
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Key Research Development Program of China
源URL[http://ir.imr.ac.cn/handle/321006/159332]  
专题金属研究所_中国科学院金属研究所
通讯作者Dong, Junhua; Wang, Changgang
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
4.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China
5.Akwa Ibom State Univ, Dept Marine Biol, PMB 1167, Uyo, Nigeria
推荐引用方式
GB/T 7714		 Daniel, Enobong Felix,Dong, Junhua,Li, Xiaofang,et al. Corrosion Behaviour of Carbon Steel Fasteners in Neutral Chloride Solution[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:14.
APA Daniel, Enobong Felix.,Dong, Junhua.,Li, Xiaofang.,Etim, Ini-Ibehe Nabuk.,Udoh, Inime Ime.,...&Wang, Changgang.(2021).Corrosion Behaviour of Carbon Steel Fasteners in Neutral Chloride Solution.ACTA METALLURGICA SINICA-ENGLISH LETTERS,14.
MLA Daniel, Enobong Felix,et al."Corrosion Behaviour of Carbon Steel Fasteners in Neutral Chloride Solution".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):14.

入库方式： OAI收割

来源：金属研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。