How Often Should Microbial Contamination Be Detected in Aircraft Fuel Systems? An Experimental Test of Aluminum Alloy Corrosion Induced by Sulfate-Reducing Bacteria

doi:10.3390/ma17143523

	How Often Should Microbial Contamination Be Detected in Aircraft Fuel Systems? An Experimental Test of Aluminum Alloy Corrosion Induced by Sulfate-Reducing Bacteria
	Lu, Bochao 1,2; Zhang, Yimeng1 ; Guo, Ding1 ; Li, Yan3 ; Zhang, Ruiyong 1; Cui, Ning 2; Duan, Jizhou1
	2024-07-01
发表期刊	MATERIALS
卷号	17 期号:14 页码:18
通讯作者	Zhang, Yimeng([email protected]) ; Cui, Ning([email protected])
摘要	Microbial contamination in aircraft fuel-containing systems poses significant threats to flight safety and operational integrity as a result of microbiologically influenced corrosion (MIC). Regular monitoring for microbial contamination in these fuel systems is essential for mitigating MIC risks. However, the frequency of monitoring remains a challenge due to the complex environmental conditions encountered in fuel systems. To investigate the impact of environmental variables such as water content, oxygen levels, and temperature on the MIC of aluminum alloy in aircraft fuel systems, orthogonal experiments with various combinations of these variables were conducted in the presence of sulfate-reducing bacteria. Among these variables, water content in the fuel oil demonstrated the most substantial influence on the corrosion rate of aluminum alloys, surpassing the effects of oxygen and temperature. Notably, the corrosion rate of aluminum alloys was the highest in an environment characterized by a 1:1 water/oil ratio, 0% oxygen, and a temperature of 35 degrees C. Within this challenging environment, conducive to accelerated corrosion, changes in the corrosion behavior of aluminum alloys over time were analyzed to identify the time point at which MIC intensified. Observations revealed a marked increase in the depth and width of corrosion pits, as well as in the corrosion weight-loss rate, starting from the 7th day. These findings offer valuable insights for determining the optimal frequency of microbial contamination detection in aircraft fuel systems.
关键词	Desulfovibrio biocorrosion aluminum alloy fuel oil corrosive environments
DOI	10.3390/ma17143523
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42206126]; National Natural Science Foundation of China[42076044]; Natural Science Foundation of Shandong Province[ZR2021QD099]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001278566400001
出版者	MDPI
WOS关键词	MICROBIOLOGICALLY INFLUENCED CORROSION ; CARBON-STEEL ; BIODEGRADATION ; TEMPERATURE ; BIOFILMS ; STORAGE
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/186151
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhang, Yimeng; Cui, Ning
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Technol, Sch Mech & Automot Engn, Qingdao 266520, Peoples R China 3.Qingdao Campus Naval Aviat Univ, Qingdao 266041, Peoples R China
推荐引用方式 GB/T 7714	Lu, Bochao,Zhang, Yimeng,Guo, Ding,et al. How Often Should Microbial Contamination Be Detected in Aircraft Fuel Systems? An Experimental Test of Aluminum Alloy Corrosion Induced by Sulfate-Reducing Bacteria[J]. MATERIALS,2024,17(14):18.
APA	Lu, Bochao.,Zhang, Yimeng.,Guo, Ding.,Li, Yan.,Zhang, Ruiyong.,...&Duan, Jizhou.(2024).How Often Should Microbial Contamination Be Detected in Aircraft Fuel Systems? An Experimental Test of Aluminum Alloy Corrosion Induced by Sulfate-Reducing Bacteria.MATERIALS,17(14),18.
MLA	Lu, Bochao,et al."How Often Should Microbial Contamination Be Detected in Aircraft Fuel Systems? An Experimental Test of Aluminum Alloy Corrosion Induced by Sulfate-Reducing Bacteria".MATERIALS 17.14(2024):18.

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