Effect of Rinsing on Atmospheric Corrosion Environment of KT-1 Aircraft

IF 1.1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Pub Date : 2023-11-30 DOI:10.5006/4364

Hyeok-Jun Kwon, Dongin Lim, Sungruul Park, Hwangjeong Cho, Dooyoul Lee

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Abstract

Corrosion is difficult to predict and manage. Thus, understanding the characteristics of the atmospheric corrosion environment inside and outside the aircraft is necessary. A series of corrosion defects were found inside the KT-1 aircraft; hence, an atmospheric corrosion monitoring set was mounted inside the aircraft to measure the effect of external rinsing on the internal corrosion according to location (fuselage and wing). The effect of external rinsing was analyzed through surface analysis of the specimens and corrosion rate estimation using internal environmental parameters. Steel specimens within the monitoring set exhibited complete corrosion, while Ag specimens showed discoloration. External rinsing reduced the rate of chloride build-up inside the wing. Additionally, TOW tended to increase with external rinsing regardless of location. Estimated and measured corrosion rates were positively correlated with TOW but negatively correlated with chloride accumulation rate. These results clearly indicate the mixed effect of rinsing and require corrosion control for individual aircraft when deciding whether to apply cleaning for corrosion control.

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冲洗对 KT-1 飞机大气腐蚀环境的影响

腐蚀难以预测和管理。因此，有必要了解飞机内外大气腐蚀环境的特征。在 KT-1 飞机内部发现了一系列腐蚀缺陷，因此在飞机内部安装了大气腐蚀监测装置，以根据位置（机身和机翼）测量外部冲洗对内部腐蚀的影响。通过试样表面分析和利用内部环境参数估算腐蚀率，分析了外部冲洗的影响。监测组中的钢制试样出现了完全腐蚀，而银制试样则出现了变色。外部冲洗降低了机翼内部氯化物的积累速度。此外，随着外部冲洗的进行，无论位置如何，TOW 都有增加的趋势。估计和测量的腐蚀率与 TOW 呈正相关，但与氯化物积累率呈负相关。这些结果清楚地表明了冲洗的混合效果，并要求在决定是否采用清洗进行腐蚀控制时对每架飞机进行腐蚀控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Corrosion MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

2.80

自引率

12.50%

发文量

审稿时长

3 months

期刊介绍： CORROSION is the premier research journal featuring peer-reviewed technical articles from the world’s top researchers and provides a permanent record of progress in the science and technology of corrosion prevention and control. The scope of the journal includes the latest developments in areas of corrosion metallurgy, mechanisms, predictors, cracking (sulfide stress, stress corrosion, hydrogen-induced), passivation, and CO2 corrosion. 70+ years and over 7,100 peer-reviewed articles with advances in corrosion science and engineering have been published in CORROSION. The journal publishes seven article types – original articles, invited critical reviews, technical notes, corrosion communications fast-tracked for rapid publication, special research topic issues, research letters of yearly annual conference student poster sessions, and scientific investigations of field corrosion processes. CORROSION, the Journal of Science and Engineering, serves as an important communication platform for academics, researchers, technical libraries, and universities. Articles considered for CORROSION should have significant permanent value and should accomplish at least one of the following objectives: • Contribute awareness of corrosion phenomena, • Advance understanding of fundamental process, and/or • Further the knowledge of techniques and practices used to reduce corrosion.