摘要
综述了钛合金及其他合金在深海极端腐蚀环境下的研究成果,总结了深海环境下腐蚀特征及应力腐蚀开裂、低周疲劳及高压蠕变等主要腐蚀破坏形式,指明上方海水的高静水压造成深海装备等的腐蚀失效和缺陷对于深海空间站等大型装备的安全性等至关重要。深海腐蚀的电极反应受到深海高静水压的影响的与普通水溶液腐蚀大为不同,值得深入研究;另一方面,对近期利用材料计算工程方法对于深海极端环境下腐蚀过程的模拟进行了介绍和总结,并总结了自主研发的专用深海腐蚀模拟装置的发展现状。基于钛合金在深海会发生的应力腐蚀开裂、低周疲劳、高静水压力导致的高压压缩蠕变及相应的电极反应方面研究,提出了我国深海环境下钛合金腐蚀研究的主要问题和未来亟待解决的相关问题。
This paper reviewed the research results of titanium alloys in deep ocean corrosive environment. The present research status of titanium alloys in the deep ocean environments was summarized from corrosive characteristics of the deep oceans and corrosion modes such as the stress cracking corrosion and low-frequency fatigue corrosion. The failures and leakages of the titanium alloys for the applications in the deep ocean environments caused by high hydrostatic pressure from above the seawaters is of importance for the applications of the deep sea stations. On the other hand, corresponding electrode reactions of titanium alloy in deep oceans are dramatically affected by the high hydrostatic pressures. The application of integrated materials calculations and simulations in the fields of metallic corrosion and the testing equipments for simulating the specific corrosion condition in the deep oceans were introduced. At the same time, the main problems and future development of corrosion researches of titanium alloy in the deep ocean environments were summarized and analyzed.
作者
林俊辉
淡振华
陆嘉飞
丁毅
王莹
常辉
周廉
Lin Junhui;Dan Zhenhua;Lu Jiafei;Ding Yi;Wang Ying;Chang Huil;Zhou Lian(Nanjing Tech University,Nanjing 211816,China;State Key Laboratory of Metal Material for Marine Equipment and Application,Anshan 114021,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2020年第3期1090-1099,共10页
Rare Metal Materials and Engineering
基金
国防基础科研计划(JCKY2018414C020)
海洋装备用金属材料及其应用国家重点实验室开放基金(SKLMEA-K201806).
关键词
深海腐蚀行为
钛合金
高压蠕变
腐蚀模式
deep sea corrosion behavior
titanium alloys
high pressure creep
corrosion models
