Relevant bibliographies by topics / Hygroscopic Corrosion

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  1. Journal articles
  2. Dissertations / Theses
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  4. Reports

Academic literature on the topic 'Hygroscopic Corrosion'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Hygroscopic Corrosion"

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Jin, Longzhe, Lu Wang, and Dongke Chen. "Corrosion inhibition of a hygroscopic inorganic dust-depressor." Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material 13, no. 4 (August 2006): 368–71. http://dx.doi.org/10.1016/s1005-8850(06)60076-5.

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Colahan, Martin, David Young, Marc Singer, and Ricardo P. Nogueira. "Black powder formation by dewing and hygroscopic corrosion processes." Journal of Natural Gas Science and Engineering 56 (August 2018): 358–67. http://dx.doi.org/10.1016/j.jngse.2018.06.021.

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Shehzad, Aamir, Arslan Ahmed, Moinuddin Mohammed Quazi, Muhammad Jamshaid, S. M. Ashrafur Rahman, Masjuki Haji Hassan, and Hafiz Muhammad Asif Javed. "Current Research and Development Status of Corrosion Behavior of Automotive Materials in Biofuels." Energies 14, no. 5 (March 6, 2021): 1440. http://dx.doi.org/10.3390/en14051440.

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The world’s need for energy is increasing with the passage of time and the substantial energy demand of the world is met by fossil fuels. Biodiesel has been considered as a replacement for fossil fuels in automotive engines. Biodiesels are advantageous because they provide energy security, they are nontoxic, renewable, economical, and biodegradable and clean sources of energy. However, there are certain disadvantages of biodiesels, including their corrosive, hygroscopic and oxidative natures. This paper provides a review of automotive materials when coming into contact with biodiesel blended fuel in terms of corrosion. Biodiesels have generally been proved to be corrosive, therefore it is important to understand the limits and extents of corrosion on different materials. Methods generally used to find and calculate corrosion have also been discussed in this paper. The reasons for the occurrence of corrosion and the subsequent problems because of corrosion have been presented. Biodiesel production can be carried out by different feedstocks and the studies which have been carried out on these biodiesels have been reviewed in this paper. A certain number of compounds form on the surface of materials because of corrosion and the mechanism behind the formation of these compounds along with the characterization techniques generally used is reviewed.
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Nur Ramadhani, Aida, Ardiyan Harimawan, and Hary Devianto. "Water content effect on biofilm formation and bio-corrosion process in biodiesel-diesel storage tank." International Journal of Engineering & Technology 7, no. 4 (September 5, 2018): 2009. http://dx.doi.org/10.14419/ijet.v7i4.15592.

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This study focused in the effect of water content on biofilm and bio-corrosion, and knowing its influence on biodiesel-diesel blends’ quality. Biodiesel is hygroscopic and less stable, makes this fuel needs more attention in storing. Fuel is usually stored in a storage tank of carbon steel which easily corroded by microorganisms, such as Bacillus megaterium. Corrosion occurs because microorganisms use fuel as nutrients and water content in hygroscopic biodiesel supports to grow and metabolize. Experiments were carried out by immersing carbon steel in medium 30% biodiesel (B30) for 21 days with water content variation of 0%, 5%, and 10% volume. The number of colonies in biofilms increased up to 1,3 times in a 10% water content. A uniform biofilm provides an inhibitory effect on corrosion per time, also layer of iron phosphate formed on water content variation, so the highest 0.642 ± 0.28 mm/year on 0% water content. Fe2O3, Fe3O4, and FeOOH are the corrosion product by Bacillus megaterium. The highest biodegradation efficiency achieved by variation water content both 5% and 10% were 68.5% and 67.23%, and then followed by no water content at 60.40%.
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Cursaru, Diana-Luciana, Salim Nassreddine, Bassam Riachi, Mihaela Neagu, Sonia Mihai, Dănuţa Matei, and Gheorghe Brănoiu. "Impact of moisture on the corrosion behavior of copper and mild carbon steel in corn biodiesel." Corrosion Reviews 36, no. 6 (November 27, 2018): 559–74. http://dx.doi.org/10.1515/corrrev-2018-0015.

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AbstractPresence of moisture is very important for vegetable oils and for corresponding biodiesel because it may cause some problems or accelerate some issues that cannot be ignored. One of the main hindrances of biodiesel is its hygroscopic nature, which accelerates the corrosion of the fuel system of the engines. Thus, this study aims to investigate the effects of moisture on corn biodiesel and its susceptibility to corrosion on different automotive materials such as copper and mild carbon steel. Static immersion tests in corn biodiesel (B100) with different water concentrations (100 ppm, 500 ppm, and 700 ppm) were carried out at 90°C for 1200 h, and the results were compared to that of commercial diesel fuel (B0). After immersion tests, the surface morphology was studied by scanning electron microscopy (SEM), and corrosion products were detected by X-ray diffraction (XRD). The total acid number (TAN) was used to evaluate the changes in acidity of fuel, before and after immersion tests. It was found that under experimental conditions, corn biodiesel is more corrosive than diesel fuel, and the moisture from corn biodiesel has a strong influence on corrosion rate on metals. Copper is more susceptible to corrosion in corn biodiesel than mild carbon steel.
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Verdingovas, Vadimas, Morten Stendahl Jellesen, and Rajan Ambat. "Relative effect of solder flux chemistry on the humidity related failures in electronics." Soldering & Surface Mount Technology 27, no. 4 (September 7, 2015): 146–56. http://dx.doi.org/10.1108/ssmt-11-2014-0022.

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Purpose – This paper aims to investigate the effect of no-clean flux chemistry with various weak organic acids (WOAs) as activators on the corrosion reliability of electronics with emphasis on the hygroscopic nature of the residue. Design/methodology/approach – The hygroscopicity of flux residue was studied by quartz crystal microbalance, while corrosive effects were studied by leakage current and impedance measurements on standard test boards. The measurements were performed as a function of relative humidity (RH) in the range from 60 to ∼99 per cent at 25°C. The corrosiveness of solder flux systems was visualized by the ex situ analysis using a gel with tin ion indicator. Findings – The results showed that the solder flux residues are characterized by different threshold RH, above which a sudden increase in direct current leakage by 2–4 orders of magnitude and a significant reduction in surface resistance in the impedance measurements were observed. Practical implications – The findings are attributed to the deliquescence RH of the WOA(s) in the flux and chemistry of water-layer formation. The results show the importance of WOA type in relation to its solubility and deliquescence RH on the corrosion reliability of printed circuit boards under humid conditions. Originality/value – The classification of solder flux systems according to IPC J-STD-004 standard does not specify the WOAs in the flux; however, ranking of the flux systems based on the hygroscopic property of activators would be useful information when selecting no-clean flux systems for electronics with applications in humid conditions.
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Hamzah, H., Ramli Arifin, and Sib Krishna Ghoshal. "Reduction of Hygroscopicity in Zinc-Calcium-Phosphate Glass via Iron-Oxide Incorporation." Solid State Phenomena 268 (October 2017): 82–86. http://dx.doi.org/10.4028/www.scientific.net/ssp.268.82.

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Despite several advantages of phosphate glass systems, their hygroscopic tendency (absorbing or attracting moisture from the atmosphere) remain a major limiting factor for widespread industrial applications. Dedicated efforts are made to improve the hygroscopic nature of such glasses for making them chemically durable and greatly resistant towards moisture attack. Guided by this requirement, we prepared five phosphate glass samples of composition (70-x) P2O5–xFe2O3–25ZnO–5CaO with controlled manipulation of iron-oxide contents (Fe2O3: x = 0 to 20 mol %) using melt-quenching method. The influence of Fe2O3 (as modifier) contents variation on the improvement of structural and chemical strength is determined. As-synthesized glass samples are immersed in acidic solutions for corrosion test. In this test, glass samples are engrossed in the aqueous hydrochloric acid (HCl) media at 90 °C and soaked for a period of 4 h. The corrosion rate (CR) was calculated from the weight loss obtained after the test. The least number of CR indicates that the inclusion of Fe2O3 in the glass network improved the network rigidity and made the glass much stronger as well as more water resistant. However, it is also established that there is an optimum limit of Fe2O3 content beyond which the durability cannot be further improved. The AFM analysis of pre- and post- chemically treated glass samples informed the surface roughness and 3D topography. Present observation must be validated with other supporting experiments and model calculation which is underway. In this study, it revealed that the lowest corrosion rate was sample S3 (10% of Fe2O3) which have CR value of 1.02±0.12 ´ 10-3gcm-2h-1 .
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Vainio, Emil, Nikolai DeMartini, Leena Hupa, Lars-Erik Åmand, Tobias Richards, and Mikko Hupa. "Hygroscopic Properties of Calcium Chloride and Its Role on Cold-End Corrosion in Biomass Combustion." Energy & Fuels 33, no. 11 (September 23, 2019): 11913–22. http://dx.doi.org/10.1021/acs.energyfuels.9b02731.

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Ramadhani, Aida Nur, Ardiyan Harimawan, and Hary Devianto. "Biofilm Formation and Bio Corrosion of Carbon Steel in Diesel-Biodiesel Storage Tank." Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 18, no. 1 (March 10, 2021): 45–55. http://dx.doi.org/10.14710/presipitasi.v18i1.45-55.

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Biodiesel is potential to blend with petroleum diesel as an alternative blended fuel. Biodiesel is usually stored in carbon steel storage tank which easily corroded by microorganisms. Microorganisms can use blended fuels as carbon source and water from biodiesel which is hygroscopic for growth and metabolism. Thus, degradation of fuel may occur and lead to biocorrosion by microorganisms such as Bacillus megaterium. This research was conducted to determine the effect of biodiesel concentration of blended fuel on biofilm formation and biocorrosion by Bacillus megaterium. The experiments were carried out by immersing carbon steel specimens in immersion medium for 21 days with variation of biodiesel concentration (B0, B20, B30, and B100). Biofilms that form on the metal surface cause areas with non-uniform oxygen concentrations and form anodic/cathodic conditions, raised to potential differences and biocorrosion occurred. The average corrosion rates were 0,035 ± 0,03; 0,533 ± 0,33; 0,642 ± 0,28; 0,109 ± 0,04 mm/year achieved by B0, B20, B30 and B100 respectively. These rates increased when compared to the control medium. Microorganism activity also caused damage to the metal surface by forming pitting corrosion on B30 and B100.
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Badwe, Sunil, K. S. Raja, and M. Misra. "A study of corrosion behavior of Ni-22Cr-13Mo-3W alloy under hygroscopic salt deposits on hot surface." Electrochimica Acta 51, no. 26 (August 2006): 5836–44. http://dx.doi.org/10.1016/j.electacta.2006.03.032.

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Dissertations / Theses on the topic "Hygroscopic Corrosion"

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Colahan, Martin L. "Formation of Black Powder Components by Dewing and Hygroscopic Corrosion Processes." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1483552728314766.

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Conference papers on the topic "Hygroscopic Corrosion"

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Kho, W. F., and Gary H. G. Chan. "Electrical Failures Due to Particle Induced Copper Wire Bond Corrosion." In ISTFA 2016. ASM International, 2016. http://dx.doi.org/10.31399/asm.cp.istfa2016p0613.

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Abstract Contamination by particles is one of the major causes of failures in integrated circuits. In some cases, particles may absorb moisture leading to electrochemical migration, dendrite growth, and electrical leakage and short failures. This work presents two case studies of particle induced corrosion of copper wire bond that resulted in an electrical failure. In the first case, adjacent pin resistive short failures were found to fail due to corrosion and electrochemical migration at wires that were in contact with calcium chloride particles. Analysis showed that the highly hygroscopic calcium chloride particles absorbed moisture and resulted in corrosion and electrochemical migration of the copper wires. For the second case, an electrical open failure after temperature cycle reliability test was found to be due to an organophosphorus particle being in contact with the wire.
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Joshi, Narayan R. "Ultrasonic Spectroscopy for Simulated Plastic IC Packages." In ASME 1997 Turbo Asia Conference. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-aa-064.

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Failure analysis of integrated circuit (IC) packages is a critical element for in house quality control and for problems encountered in service. Plastic IC packages are routinely inspected for delaminations, voids, cracks, and corrosion using the C-mode acoustic microscopy (C-AM). Plastic IC packages are hygroscopic and can absorb moisture subjected to environmental cycling depending on the quality of the plastic chemical compound used to encapsulate the IC chip. The new advanced ultrasonic interference spectroscopy (UIS) technique used by the author elsewhere to detect presence of moisture in adhesively bonded joints is applied to the problems of the plastic IC packages in this research work. The new UIS technique was used on manually fabricated simulated plastic packages with thin water film trapped between two layers of plastic material (Lexan) and the silicon wafer. The technique successfully detected the presence of an extra water layer in the assembly inspected and estimated its thickness accurately to be 110 μm. At present the technique is under development for detection of water films thinner than 110 μm in actual plastic IC packages.
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Bollina, Ravi, Janet Landgraf, Hannes Wagner, Robert Wilhelm, Sven Knippscheer, Gerhard Mitic, and Svetlana Levchuck. "Thermal Reliability and Environmental Testing of Advanced Metal Diamond Composites." In ASME 2007 InterPACK Conference collocated with the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ipack2007-33028.

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Advanced diamond composites with matrix metal silver, copper and aluminum alloys were developed for heat sinks and base plates in high performance electronic packages. The reliability of these composites under extreme thermal and environmental conditions was investigated in the thermal cycling and pressure cooker tests. Thermal cycling tests on metal diamond composites were performed in a two chamber cycling oven between −55°C and +150°C for 1000 thermal cycles with 20 minutes storage time in each chamber. The effect of humidity and pressure was assessed from pressure cooker test at 121°C at 2 bar for 168 h. Thermal properties such as thermal diffusivity and specific heat were measured before and after the thermal cycling to observe any changes in thermal properties of the composites due to any possible interfacial degradation. The thermal properties of the composites did not decrease and the interfaces did not degrade after the thermal cycling tests in case of Ag-diamond composites. Al-diamond composites show a slight decrease of 5–8% in thermal diffusivity after thermal cycling. The thermal diffusivity of the Cu/Cr based diamond composite is unaltered before and after testing. The thermal diffusivity of Cu/Si diamond composites decreased by 43% at room temperature measured value. Al-diamond composites did not show any degradation during the pressure cooker tests although aluminum carbide is hygroscopic and deteriorates under moisture. Ag and Al-diamond composites survived the pressure cooker test. Cu/Si and Cu/Cr based diamond composites showed a slight change in coloration and a possible corrosion after the pressure cooker test.
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Wang, Xiaoxin, Qichao Hu, Gil-Pyo Kim, Xiankun Xu, Peiwen Li, and Dominic Gervasio. "Experimental Study of Hygroscopy of Single and Different Mixtures of MgCl2, KCl, NaCl, ZnCl2 for Application As Heat Transfer Fluids in CSP." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86416.

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Eutectic molten chloride salts by MgCl2, ZnCl2, KCl, and NaCl are considered as promising high temperature heat transfer and thermal storage fluid in concentrated solar power (CSP) systems. However, chloride salts MgCl2 and ZnCl2 are water affinity, so they can absorb water from surroundings easily. This will increase the corrosion of metals when the molten salts stay with metals at high temperatures. Our study also found that the presence of trace water in the solid salt caused vapor pressure of the molten salts increase. The current work presents studies about the kinetic processes of water absorption and removal from single and different mixture of NaCl, KCl, MgCl2 and ZnCl2 salts. The process of water uptake from ambient air and removal through heating are measured quantitatively. Water removal from molten salts through sparging with argon gas was employed as a further treatment method.
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Reports on the topic "Hygroscopic Corrosion"

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Morefield, Sean, John Newman, Charles Weiss, Catherine Thomas, and Philip Malone. Corrosion inhibitive hygroscopic organic-based dust palliatives : final report on Project F12-AR11. Engineer Research and Development Center (U.S.), November 2018. http://dx.doi.org/10.21079/11681/29970.

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