文章信息/Info

Title:

Progress in the Study of Corrosion Behavior and Mechanism for Copper-Nickel Alloys under Seawater Erosion Condition

文章編號:

1674-3962(2022)05-0398-09

作者:

曹青敏; 劉巖; 劉斌; 石澤耀; 張赪棟; 蹇冬輝

（北京化工大學(xué)材料科學(xué)與工程學(xué)院 材料電化學(xué)過程與技術(shù)北京市重點實驗室，北京 100029）

Author(s):

CAO Qingmin;  LIU Yan;  LIU Bin;  SHI Zeyao;  ZHANG Chengdong;  JIAN Donghui

（Beijing key Laboratory of Materials Electrochemical Process and Technology, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China）

關(guān)鍵詞:

銅鎳合金; 海水沖刷; 腐蝕行為; 腐蝕機理

Keywords:

copper-nickel alloy;  seawater erosion;  corrosion behavior;  corrosion mechanism

分類號:

TG172.5

DOI:

10.7502/j.issn.1674-3962.202007007

文獻(xiàn)標(biāo)志碼:

A

摘要:

海洋與船舶工程技術(shù)的快速發(fā)展，對材料的耐蝕性能提出了越來越高的要求。銅鎳合金是以鎳為主要合金元素、對銅合金進(jìn)行改性而發(fā)展形成的一類銅合金，因呈現(xiàn)銀白色金屬光澤，故也稱為白銅。銅鎳合金的耐蝕性優(yōu)異，且易于塑性加工和焊接，因此在海洋與船舶工程、石油化工等領(lǐng)域得到了非常廣泛的應(yīng)用，尤其是在耐海水沖刷腐蝕方面展現(xiàn)出優(yōu)異的性能。針對國內(nèi)外銅鎳合金海洋腐蝕的研究現(xiàn)狀，分別從材料因素和環(huán)境因素2個方面，對銅鎳合金在海水沖刷條件下的腐蝕行為規(guī)律、影響因素和腐蝕機理進(jìn)行了綜合分析與評述；在此基礎(chǔ)上，重點分析指出了耐更苛刻環(huán)境合金材料研發(fā)工作少、耐蝕機理未形成統(tǒng)一認(rèn)識、研究手段有待于拓展、缺乏合金構(gòu)件腐蝕行為研究4個方面的問題，并提出了針對性的建議和解決途徑；最后對其未來的發(fā)展方向進(jìn)行了展望。

Abstract:

The rapid development of marine and ship engineering technology has put forward higher and higher requirements for the anti-corrosion performance of materials. Copper-nickel alloys are a type of copper alloy mainly modified by nickel element. Due to its silver-white metallic luster, it is also called white copper. Copper-nickel alloys have been widely used in marine and ship engineering, petrochemical industry and other fields, owing to excellent corrosion resistance, good processability and weldability, especially in terms of resistance to seawater erosion. In this paper, according to the research status of marine corrosion of copper-nickel alloys at home and abroad, the corrosion behavior, influencing factors and corrosion mechanism of copper-nickel alloys under seawater erosion condition were reviewed and analyzed from the view point of material and environmental factors respectively. On this basis, the existing problems in this research field were analyzed, four problems were highlighted, including less research and development of more harsh environment resistant alloy materials, no unified understanding of corrosion resistance mechanism, research methods to be expanded, lack of research on corrosion behavior of components, and corresponding suggestions and solutions were proposed. Finally, the future development direction was prospected.