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Showing 1 to 20 of 27 for “"salt spray"”.
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The Moisture Transport Properties of Cement Mortar under Salt Spray Deposition
… and indoor thermal comfort. Due to the salt spray climate, the external boundary conditions of buildings in coastal areas differ significantly from those in inland regions. Under salt spray deposition, salt crystals accumulate and expand within the pores of building materials, which not …
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Value of salt spray test, an investigation of heterogeneity within the chamber and other factors affecting the reliability of the salt-spray test for weathering resistance of coated steel sheet
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1933.
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The effect of external corrosion on the performance of multichannel multilouvered fin aluminum heat exchangers
… are evaluated periodically during ten days of salt spray test refers to ASTM G85 Annex 3 the acidified synthetic seawater testing (SWAAT). To explore the effect of deposit formed during the salt spray tests on the heat exchanger performance, one of these two heat exchangers is left with the …
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Heavyweight Phosphating of Rubber-to-Metal Bonded Products
… would withstand the periods of exposure to the salt spray test required by the sponsoring manufacturer's customers. Preliminary research showed that the range of finishes used were capable of meeting the customers requirements but the phosphate and sealant finishes used for over 45% (volume) of …
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Development of Anti-corrosive Polyester Powder Coatings
… by electrochemical techniques and neutral salt spray tests. The combined effects of the additives with a filler barium sulfate were also investigated. The effect of the film thickness was studied and optimized by the statistical method Mixture Design. The additives and functional filler …
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Seed germination requirements and salt stress tolerance of coastal rare species in Sardinia
… were evaluated; their germination responses to salt stress (NaCl) and their germination recovery. Interpopulation variability on germination patterns was also evaluated for R. polygama, B. insularis and L. triloba ssp. triloba. Salt spray tolerance on the vegetative growth and biomass production …
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Phosphate post-treatment of cerium-based conversion coatings on Al 2024-T3
… As-deposited CeCCs exhibit corrosion pits and salt tails across the specimen surface after 3 days of exposure, but post-treated CeCCs have withstood 14 days of salt spray exposure without visibly corroding. The morphology, phase, and electrochemical properties of spray deposited CeCCs were …
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A review and development of accelerated test methods for anti-corrosive organic coatings
… of method, the first in the form of traditional salt spray exposure and the second in the form of electrochemical techniques. The emphasis in the experimental work reported here is on the Electrochemical Noise Measurement (ENM). ENM has been used to monitor coatings under immersion conditions, …
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Development of Environmentally Friendly Non-Chrome Conversion Coatings for Cold-Rolled Steel
… steel sheets. Various carboxylic acids and their salts have been studied for coating phosphated electrogalvanized (EG) steel sheets, including 10-undecenoic acid (UA), oleic acid (OA), and other fatty acids such as stearic acid (SA) and palmitic acid (PA). When they were used alone, or …
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Evaluation of tests for porosity and defects in PVD and electroless coatings.
… tests. The tests used were the neutral salt spray test, ferroxyl test, sulphur dioxide test and the copper cementation test. Additionally the effect of radii on the corrosion resistance and porosity of electroless nickel coatings was examined. Electron optics, GDOES and ICP were used to …
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Investigations of Press Bonded Zinc-Rich Powder Coatings
… corrosion resistance in a 3000-h neutral salt spray test. The formulation offers novel ways to manufacture high-performance powder coatings for heavy-duty applications.
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Synthesis and characterization of functional polymers with controlled architecture and their application as anticorrosion primers
… were then evaluated through a series of tests (salt spray, hot water immersion, cathodic disbondment, electrochemical impedance spectroscopy, polarization curves and pull-off test). A deposition method was developed to generate the optimal coating system: the steel to protect was dipped in a …
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Corrosion protection mechanisms of trivalent chromium based passivations on γ-ZnNi coated Al6061-T6 alloy
… protect well for up to 1000 hours in neutral salt spray exposure (SSE). A repetition on Al 6061-T6 alloy indicated that TCP performed much better than cobalt-free TCP implicating the underlying substrate. Optical and electron micrographs indicated physical changes such as crack thickness, …
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Phytosociology and vegetation ecology of uMlalazi Nature Reserve
… some environmental factors such as, exposure to salt spray, salt content, moisture availability and clay content are important in shaping most of the communities in the study area. Differences in species richness, salt content, distance from the sea and human induced fire and grazing between …
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Chemically-bonded enamel-coated steel pipelines for corrosion protection and flow efficiency
… cathodic protection (CP), is evaluated using salt spray and electrochemical tests. The stress distribution of enamel-coated pipes and their susceptibility to stress corrosion cracking (SCC) were studied with finite element analyses and slow strain rate tests, respectively. The surface …
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Exothermic flux forge welding of steel tubulars
… testing. Corrosion response was investigated by salt spray and by submersion in NACE Solution A. Heat affected zone microstructure and hardness were also examined along with bond plane fracture using the nick break method. The results include achievement of (1) material specified strength, …
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Investigation of plasmaion vapor deposition (IVD) hybrid coatings for corrosion protection and plasma destruction of oral bacteria
… resistance. Corrosion test results from SO2 salt spray test showed that a similar amount of corrosion products were found with the plasma coated IVD specimens as their controls, i.e., chromate conversion coated IVD samples, and did not form visible amounts of red rust after 504 hours neutral …
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Ion sequestration particles for naval anticorrosion coatings
… of hot deionized water immersion and 1000 hrs of salt spray exposure (ASTM B117). The best improvements in coating performance are attained with ISP content ranging from 5-10 wt % loading in a coating.</p><p>ISPs were designed to limit the transport of harmful ions through the coating. However …
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A Nacreous Self-Assembled Nanolaminate for Corrosion Resistance on 2024-Al Alloy
… positive charge. ISAM films made of a polyamide salt and a synthetic clay, Laponite RD®, demonstrated significant corrosion resistance on 2024-T3 Al alloys after 168 hours of salt spray testing. The ISAM films offered corrosion protection only if there was a significant layer of underlying …
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