中船重工七二五所率先开展了材料深海自然环境腐蚀老化实验,成功突破了深海试验装置低功耗长期自持设计、大深度深海试验装置水下受力状态模拟分析、深海原位腐蚀检测等多项关键技术,利用自主设计研发的“近底悬浮”式深海试验装置,在我国南海海域相继开展了不同深度深海环境实验,积累了9大类40余种不同材料、不同周期的深海腐蚀老化数据,获得腐蚀数据13000余个,建立我国首个材料深海腐蚀老化数据库,并从取得的数据中揭示出材料在深海环境下的腐蚀规律.同时积累了不同深度海洋环境因素数据,探讨了材料腐蚀与环境因素之间的关系,填补了我国在深海环境中材料性能研究的空白,获得的基础数据对我国深海装备的发展具有重要的意义.
Luoyang Ship Material Research Institute (LSMRI) is the only institute in China to carry through the study on the corrosion of materials exposed in the deep sea environment.The institute has developed the key techniques related to the deep-sea test,such as low power standby design,optimiza tion of the testing assembly,underwater force state analysis,and in situ corrosion monitoring.Using the near bottom suspension installation for the deep-sea test,LSMRI has successfully conducted the deep sea corrosion tests in the South China Sea,and obtained fruitful data of corrosion and aging of over 40 materials deployed with different exposure periods.The tested materials include low alloy steel,stainless steel,copper alloys,aluminum alloys,titanium alloys,coupling components,non-metallic materials,or ganic coatings,metallic coatings,and fasteners.The number of acquired corrosion data is over 13000.LSMRI has also built the first database of deep-sea corrosion and aging of materials for the country.The relationship between the material corrosion and the environmental factors is also revealed.The basic da ta are of great significance for the development of deep sea equipment and structures.
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