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工业纯钛(TA2)在南海三亚海洋环境试验站海水全浸的生物污损与腐蚀
马士德1,2, 郭为民3, 刘欣4, 王在东5, 刘会莲1, 符策鹄6, 李科1, 任海涛6, 程坤4, 李文军6
1.中国科学院海洋研究所, 山东 青岛 266071;2.中国老教授协会海洋防腐防污专业委员会, 山东 青岛 266071;3.中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室, 山东 青岛 266237;4.青岛科技大学 材料科学与工程学院, 山东 青岛 266042;5.青岛东启机械设备有限公司, 山东 青岛 266071;6.三亚海洋环境试验站, 海南 三亚 572000
摘要:
为探明工业纯钛TA2在热带海域中的腐蚀与污损,在南海三亚海洋环境试验站进行了为期0.5年、1年、2年、3.5年四个周期的全浸试验。对3.5年周期的试验样品,利用解剖镜鉴定了生物污损群落的组成、利用金相显微镜观察、X射线衍射、扫描电子显微镜(scanning electron microscopy,SEM)及红外光谱分析技术分析了基体和腐蚀产物的微观形貌,确定了钛板表面的元素和产物。结果表明,钛板表面由基底的二氧化钛膜、管栖多毛类、微藻等的微型生物和有机、无机颗粒组成的腐蚀产物皮膜所覆盖。和同纬度热带海域相比生物污损轻微,试板上(可视生物)仅有3~5个而且种类少、数量少、个体小。钛板基体表面未发生局部腐蚀。
关键词:  工业纯钛  生物污损  耐蚀性  三亚试验站
DOI:10.11759/hykx20180301002
分类号:TG174
基金项目:国家自然科学基金项目(59471054,59071040),国家海洋局公益性项目(201405013-4),国家重点基础研究项目(2014CB643304)
Biofouling and corrosion analyses of industrial pure Titanium (TA2) immersed in seawater at Sanya marine environmental test station in South China Sea
MA Shi-de1,2, GUO Wei-min3, LIU Xin4, WANG Zai-dong5, LIU Hui-lian1, FU Ce-hu6, LI Ke1, REN Hai-tao6, CHENG Kun4, LI Wen-jun6
1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;2.China Association of Professors of the Old Marine Anti-Fouling and Anti-Fouling Specialized Committee, Qingdao 266071, China;3.State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Materials Research Institute(LSMRI), Qingdao 266237, China;4.Qingdao University of Science and Technology, Qingdao 266042, China;5.Qingdao Dongqi mechanical equipment Co., Ltd, Qingdao 266071, China;6.Sanya Marine Environmental Testing Station, Sanya 572000, China
Abstract:
To investigate the corrosion and fouling of industrial pure titanium TA2 in the tropical waters, a full immersion test was carried out for four cycles within 6 months, 1 year, 2 years, and 3.5 years at the Sanya marine environmental test station in the South China Sea. For the 3.5 year cycle test samples, the biofouling community composition was identified by anatomical imitation, and the microstructure of the matrix and corrosion products were observed by metallographic microscopy, X-ray diffraction, scanning electron microscopy (SEM), and infrared spectroscopy, and the elements and products on the titanium surface were determined. The results show that the surface of the titanium plate substrate was covered with TiO2 film; microorganism such as tubular hairy and microalgae; and a corrosion product film composed of organic and inorganic particles. Compared with the tropical waters of the same latitude, the biological contamination in the test station is slight. There were only 3-5 visible organisms on the test plate, and the numbers of species and individuals were few. Moreover, there was no local corrosion on the titanium plate surface.
Key words:  industrial pure titanium  biofouling  anticorrosion  Sanya test station
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