Results 1 to 10 of about 2,245 (216)

Polarization Studies on Inhibitory Effect of Chromates and Dichromates on Corrosion of Tin Coated Steel in 0.5M Monochloroacetic Acid [PDF]

open access: yesE-Journal of Chemistry, 2008
Chromates and Dichromates have been tested for its inhibitory effects towards tin coated steel in 0.5M monochloroacetic acid. The corrosion behaviour of potassium chromate, sodium chromate, potassium dichromate, sodium dichromate and ammonium dichromate ...
Sangita Sharma   +4 more
doaj   +2 more sources

Chromatic-Choosability of Hypergraphs with High Chromatic Number [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2019
It was conjectured by Ohba and confirmed  by Noel, Reed and Wu that, for any graph $G$, if $|V(G)|\le 2\chi(G)+1$ then  $G$ is chromatic-choosable; i.e., it satisfies $\chi_l(G)=\chi(G)$. This indicates that the graphs with high chromatic number are chromatic-choosable. We observe that this is also the case for uniform hypergraphs and further propose a
Wei Wang 0052, Jianguo Qian
openaire   +3 more sources

SCANNING KELVIN PROBE APPLIED TO LOCALISED CORROSION

open access: yesJournal of Fundamental and Applied Sciences, 2015
This paper focuses on specific applications of the SKP system. The instrument is calibrated, using different thickness of a model polymer Poly Vinyl Butyral (PVB) on mild steel and on galvanised steel.
A. Hussain, Sk M. Haque
doaj   +3 more sources

Natural Polyphenols and the Corrosion Protection of Steel: Recent Advances and Future Perspectives for Green and Promising Strategies

open access: yesMetals, 2023
Corrosion is recognized as an unavoidable phenomenon and steel, particularly carbon steel, is strongly susceptible to corrosion. Corrosion damages cause serious material, energy, and economic losses as well as negative impacts on the environment.
Rossella Sesia   +3 more
doaj   +1 more source

Corrosion Mechanism Suggested Based on Electrochemical Analysis and SVET for Uncoated Tinplate and Post Coated With a Hybrid Film [PDF]

open access: yesMaterials Research, 2017
The tinplate, used in the packaging sector and formed from a metal substrate, comprises a steel base which has undergone a surface treatment to produce a thin layer of FeSn2, a tin layer and an oxide tin layer.
Sandra Raquel Kunst   +8 more
doaj   +2 more sources

A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

open access: yesMetals, 2021
Acid corrosion is a problem pertaining to corrosion that involves an acid solution. It is important to treat metal to preserve its integrity. Thus, acids are utilized to clean and treat metal surfaces.
Norbaayah Ahmad Reza   +3 more
doaj   +1 more source

A Mössbauer study of DyCrO4 and ErCrO4

open access: yesAIP Advances, 2019
Earlier Mössbauer investigations of rare earth chromates RCrO4 with R = Gd and Tm were interpreted in terms of a superposition of two sub-spectra (approx. 4:1 area ratio), despite there being only a single crystallographic R(4a) site.
G. A. Stewart   +3 more
doaj   +1 more source

Corrosion Inhibition Studies of Metals in Acid Media by Fibrous Plant Biomass Extracts and Density Functional Theory: A Mini-Review

open access: yesJournal of Natural Fibers, 2022
Metals used in industries are exposed to several processes such as acid cleaning, pickling, and descaling, which leads to corrosion. A good measure of corrosion control has been achieved by reducing the metal impurity content, by corrosion inhibition ...
Julius U. Ani   +4 more
doaj   +1 more source

Phyllosilicate-based adsorbents decorated with iron oxyhydroxides: Application for lead, chromates and selenites removal [PDF]

open access: yesScience of Sintering
Expanded vermiculite (EVer) was acid activated and silanized in order to obtain suitable substrate’s surface for decoration with iron oxyhydroxides (IO).
Bugarčić Mladen   +6 more
doaj   +1 more source

High-Temperature Solid Lubricants and Self-Lubricating Composites: A Critical Review

open access: yesLubricants, 2022
Solid lubricants are described as solid materials of intentionally introduced or in situ formed on contact surfaces in relative motion for the purpose of lowering friction and wear and providing protection from damage.
Jia-Hu Ouyang   +4 more
doaj   +1 more source

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