A NOVEL LABORATORY TECHNIQUE FOR OBSERVING DEWFORMATION AT EARLY STAGE IN ATMOSPHERIC CORROSION

J Chin Soc Corr Pro

2001, Vol. 21

Issue (5): 301-305 DOI:

Technology Report

Current Issue | Archive | Adv Search

A NOVEL LABORATORY TECHNIQUE FOR OBSERVING DEWFORMATION AT EARLY STAGE IN ATMOSPHERIC CORROSION

;;

中科院上海冶金所

Download:

PDF(229KB)
Export: BibTeX | EndNote (RIS)

Abstract Although dewing is well recognized to play an impor tant role in the atmospheric corrosion of metals, direct observation of dewing p rocess has not been reported. In order to demonstrate the phenomenon in laborato ry, a simple experimental arrangement was set up. Since dewing is a result of mo isture condensation when metal surface is chilled down below the dew-point tempe rature of the air, a semiconductor cooling unit was adopted to cool the plate sp ecimen. Thus dewing process could be observed under metalloscope, and photograph s of the dew droplets could be taken when necessary. Initially minute droplets appeared upon cool surface. Then adjoining drops merged into a larger one and so drops grew gradually. Finally a thin water film covered entirely the specimen s urface. In this way various influencing factors could be examined with ease. Wh en the specimen surface was covered with dust, dewing took place surrounding the dust with priority. On the salt contaminated surface dewing was much easier. Th ese illustrated unambiguously the enhanced effect of dust and salt contaminated on atmospheric corrosion.

Key words: atmospheric corrosion dew formation atmospheric pollut ion

Received: 15 August 2000

ZTFLH:

TG172.3

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors

Cite this article:

. A NOVEL LABORATORY TECHNIQUE FOR OBSERVING DEWFORMATION AT EARLY STAGE IN ATMOSPHERIC CORROSION. J Chin Soc Corr Pro, 2001, 21(5): 301-305 .

URL:

https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2001/V21/I5/301

[1]GuttmanH .AtmosphericandWeatherFactorsinCorrosionTesting.InAtmosphericCorrosion(AilorWHedited)[M ].NewYork:JohnWileyandSons,Inc.,1982,51～68
[2]LiRunshen,CaoWeiwu.Adetectingofsurfacestateandsub-surfacestate[P].ChinesePatentZL 932257259(李润身,曹卫武.表面和亚表面状态检测装置[P].中国实用新型专利ZL93225725.9)
[3]SummittR ,FinkFT .TheUSAFCorrosionTestingProgramandaCorrosionSeverityIndexAlgorithm.InAtmosphericCorro sion(AilorWHedited)[M].NewYork:JohnWileyandSons,Inc.,1982,245～263
[4]ZhuXiangrong,WangXiangrun,etal.CorrosionandProtectionofMetalsinMarineEnvironment[M ].Beijing:NationalDe fenceIndustryPublishingHouse,1999,117(朱相荣,王相润等编著.金属材料的海洋腐蚀与防护[M]北京:国防工业出版社,1999,117)
[5]MorcilloM ,ChicoB ,OteroE ,MariacaL .Effectofmarineaerosolonatmosphericcorrosion[J].MaterialsPerformance,1999,38(4):72
[6]CorrosionandProtectionCommitteeofJapanSocietyofMaterialsed.CorrosionCasesandTheirAnlysis[M ].Japan:JapanTakusanPublishingHouse,1988,10(日本材料学会腐蚀防蚀部门委员会编.腐蚀、损伤事例と解析技术[M ].日本:日本氵尺山出版社,1988,10
[7]FeliuS ,MorcilloM ,ChicoB .Effectofdistancefromseaonatmosphericcorrosion[J].Corrosion,1999,55(9):883

[1]	FAN Yi,CHEN Linheng,CAI Jiaxing,DAi Qinqin,MA Hongchi,CHENG Xuequn. Corrosion Behavior of Hot-rolled AH36 Plate in Indoor Storage Environment[J]. 中国腐蚀与防护学报, 2020, 40(1): 10-16.
[2]	PAN Chengcheng,MA Chao,XIA Dahai. Estimation for Relevance of Atmospheric Corrosion Initiation with Surface Texture of Several Metallic Materials by Electron Backscattering Diffraction[J]. 中国腐蚀与防护学报, 2019, 39(6): 495-503.
[3]	ZHAO Jinbin,ZHAO Qiyue,CHEN Linheng,HUANG Yunhua,CHENG Xuequn,LI Xiaogang. Effect of Different Surface Treatments on Corrosion Behavior of 300M Steel in Qingdao Marine Atmosphere[J]. 中国腐蚀与防护学报, 2019, 39(6): 504-510.
[4]	DENG Junhao,HU Jiezhen,DENG Peichang,WANG Gui,WU Jingquan,WANG Kun. Effect of Oxide Scales on Initial Corrosion Behavior of SPHC Hot Rolled Steel in Tropical Marine Atmosphere[J]. 中国腐蚀与防护学报, 2019, 39(4): 331-337.
[5]	Yongwei SUN,Yuping ZHONG,Lingshui WANG,Fangxiong FAN,Yatao CHEN. Corrosion Behavior of Low-alloy High Strength Steels in a Simulated Common SO₂-containing Atmosphere[J]. 中国腐蚀与防护学报, 2019, 39(3): 274-280.
[6]	Li WANG, Chunyun GUO, Kui XIAO, Tuerxun·Silayiding, Chaofang DONG, Xiaogang LI. Corrosion Behavior of Carbon Steels Q235 and Q450 in Dry Hot Atmosphere at Turpan District for Four Years[J]. 中国腐蚀与防护学报, 2018, 38(5): 431-437.
[7]	Jun WANG, Chao FENG, Bicao PENG, Yi XIE, Minghua ZHANG, Tangqing WU. Corrosion Behavior of Weld Joint of S450EW Steel in NaHSO₃ Solution[J]. 中国腐蚀与防护学报, 2017, 37(6): 575-582.
[8]	Xinxin ZHANG,Zhiming GAO,Wenbin HU,Zhipeng WU,Lianheng HAN,Lihua LU,Yan XIU,Dahai XIA. Correlation Between Corrosion Behavior and Image Information of Q235 Steel Beneath Thin Electrolyte Film[J]. 中国腐蚀与防护学报, 2017, 37(5): 444-450.
[9]	Xin ZHANG,Nianwei DAI,Yan YANG,Junxi ZHANG. Effect of Direct Current Electric Field on Corrosion Mechanism of Zn Exposed to Simulated Industrial Environment[J]. 中国腐蚀与防护学报, 2017, 37(5): 451-459.
[10]	Xiaobo MENG,Wubin JIANG,Yongli LIAO,Ruihai LI,Zhijun ZHENG,Yan GAO. Investigation on Atmospheric Corrosion Behavior of Transmission Tower Materials in Simulated Industrial Environments[J]. 中国腐蚀与防护学报, 2017, 37(5): 460-466.
[11]	Shuangqing SUN,Qifei ZHENG,Chunling LI,Xiumin WANG,Songqing HU. Effect of Corrosion Products on Long-term Atmospheric Corrosion of Pure Aluminum 8A06[J]. 中国腐蚀与防护学报, 2017, 37(2): 110-116.
[12]	Ziheng BAI,Yunhua HUANG,Xiaogang LI,Lang YANG,Chaofang DONG,Lidan YAN,Kui XIAO. Environmental Corrosion in Industrial-marine Atmosphere at Qingdao of 7050 Al-alloy Anodized in Boric- and Sulfuric-acid Electrolyte[J]. 中国腐蚀与防护学报, 2016, 36(6): 580-586.
[13]	Dongliang LI,Guiqin FU,Miaoyong ZHU. Effect of Si on Corrosion Behavior of Model Bridge Steels by Alternative Wetting/drying Test in an Artificial Medium Simulated Hot and Humid Atmosphere of Marine and Industrial Area[J]. 中国腐蚀与防护学报, 2016, 36(5): 433-440.
[14]	Chuan WANG,Gongwang CAO,Chen PAN,Zhenyao WANG,Miaoran LIU. Atmospheric Corrosion of Carbon Steel and Weathering Steel in Three Environments[J]. 中国腐蚀与防护学报, 2016, 36(1): 39-46.
[15]	Yanjie LIU,Zhenyao WANG,Wei KE. Characterization of Corrosion Products on Pure Al Exposed in Atmospheres at Typical Rural, Industrial and Coastal Areas in China[J]. 中国腐蚀与防护学报, 2016, 36(1): 47-51.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed