[1]展旭和,王海龙,丁小明,等.铝合金在海洋环境中的应力腐蚀机理研究进展[J].中国材料进展,2023,42(08):662-668.[doi:10.7502/j.issn.1674-3962.202104018]
　ZHAN Xuhe,WANG Hailong,DING Xiaoming,et al.Research Progress on Stress Corrosion Mechanism of Aluminum Alloy in Marine Environment[J].MATERIALS CHINA,2023,42(08):662-668.[doi:10.7502/j.issn.1674-3962.202104018]
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铝合金在海洋环境中的应力腐蚀机理研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
42
期数:
2023年第08期
页码:
662-668
栏目:
出版日期:
2023-08-31

文章信息/Info

Title:
Research Progress on Stress Corrosion Mechanism of Aluminum Alloy in Marine Environment
文章编号:
1674-3962(2023)08-0662-07
作者:
展旭和1; 王海龙2; 3; 丁小明2; 3; 张天翼4; 高林星; 刘超4
1.国家高速列车青岛技术创新中心，山东 青岛 370214 2.中国航发北京航空材料研究院，北京 100095 3.航材国创（青岛）高铁材料研究院有限公司，山东 青岛 370214 4.北京科技大学 新材料技术研究院，北京 100083 5.上海无线电设备研究所，上海 201109
Author(s):
ZHAN Xuhe1;  WANG Hailong2; 3;  DING Xiaoming2; 3; ZHANG Tianyi4;  GAO Linxing;  LIU Chao4
1. National Innovation Center of High Speed Train, Qingdao 370214, China 2. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China 3. Aviation Materials National Innovation (Qingdao) High Speed Railway Materials Research Institute Co., Ltd,Qingdao 370214, China 4. Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China et al.
关键词:
铝合金; 应力腐蚀; 海洋环境; 热处理工艺; 应力腐蚀机理
Keywords:
aluminum alloy;  stress corrosion;  marine environment;  heat treatment process;  stress corrosion mechanism
分类号:
TG172.5
DOI:
10.7502/j.issn.1674-3962.202104018
文献标志码:
A
摘要:
聚焦铝合金在海洋环境中的应力腐蚀行为及影响因素，讨论了海洋环境中铝合金的应力腐蚀机理。海洋环境下铝合金应力腐蚀开裂（stress corrosion cracking, SCC）的形成主要受氢致开裂和阳极溶解过程控制。铝合金的SCC过程可分为4个阶段：铝合金表面钝化膜破裂和点蚀阶段、裂纹萌生阶段、钝化膜的再生与溶解动态平衡阶段以及裂纹扩展阶段。铝合金的合金成分、热处理工艺可以控制其显微组织结构，其中第二相粒子对铝合金的SCC过程起主要作用。海洋环境的温度、pH值、离子种类和浓度等因素也会影响铝合金的SCC行为。结合常用合金元素在铝合金基体中的存在形式及作用、热处理工艺对铝合金应力腐蚀行为影响，以及海洋环境的特点，总结了铝合金在海洋大气、海水环境中的应力腐蚀失效机理，为铝合金在海洋环境中的应用提供应力腐蚀机理解释与分析依据。
Abstract:
This paper focuses on the stress corrosion behavior and influencing factors of aluminum alloy in marine environment, and discusses the stress corrosion mechanism of aluminum alloy in marine environment. The stress corrosion cracking (SCC) of aluminum alloy in marine environment is mainly controlled by hydrogen induced cracking and anodic dissolution process.The SCC process of aluminum alloy can be divided into four stages: aluminum alloy surface passivation film rupture and pitting stage, crack initiation stage, passivation film regeneration and dissolution dynamic equilibrium stage and crack propagation stage. The microstructure of aluminum alloy can be controlled by the alloy composition and heat treatment process, and the second phase particles in aluminum alloy play an important role in the SCC process of aluminum alloy. The SCC behavior of aluminum alloy is also affected by the temperature, pH value, ion type and concentration of marine environment. This paper summarizes the failure mechanism of stress corrosion of aluminum alloy in ocean atmosphere and seawater environment by analyzing the existence form and function of common alloying elements in aluminum alloy matrix, the influence of heat treatment process on stress corrosion behavior of aluminum alloy, and the characteristics of marine environment. It provides the basis for explaining and analyzing the mechanism of stress corrosion of aluminum alloy in marine environment.

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备注/Memo

备注/Memo:
收稿日期：2021-04-13修回日期：2021-09-07 基金项目：国家自然科学基金资助项目（51871024）；中央高校基本科研业务费专项资金资助项目(FRF-TP-19-030A1) 第一作者：展旭和，男，1985年生，高级工程师 通讯作者：刘超，男，1988年生，副研究员，硕士生导师， Email: liuchaoustb@163.com
更新日期/Last Update: 2023-05-06