Evaluation of Lutein Polyester Film as Corrosion Inhibitor in Steel AISI 1018

2019 ◽  
Vol 94 (1) ◽  
pp. 291-296
Author(s):  
Luis Manuel Arvizu Balboa ◽  
Brenda Osiris Sosa Mondragon ◽  
Magdalena Vazquez Cerda ◽  
Eloy Rodriguez de Leon ◽  
Maricela Gonzalez Leal ◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Steel Aisi ◽  
Polyester Film

scholarly journals Aqueous Agro-Industrial Waste as Corrosion Inhibitor for Stainless Steel AISI 304 in Acidic Media

2019 ◽  
Vol 22 (5) ◽  
Author(s):  
Larissa Aparecida Corrêa Matos ◽  
Mariane Coussian Taborda ◽  
Everson do Prado Banczek ◽  
Eliane D’Elia ◽  
Paulo Rogério Pinto Rodrigues
Keyword(s):  
Stainless Steel ◽  
Corrosion Inhibitor ◽  
Industrial Waste ◽  
Acidic Media ◽  
Aisi 304 ◽  
Steel Aisi ◽  
Stainless Steel Aisi

scholarly journals Açaí (Euterpe oleracea Mart.) Seed Extracts from Different Varieties: A Source of Proanthocyanidins and Eco-Friendly Corrosion Inhibition Activity

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3433
Author(s):  
Gabriel Rocha Martins ◽  
Douglas Guedes ◽  
Urbano Luiz Marques de Paula ◽  
Maria do Socorro Padilha de Oliveira ◽  
Marcia Teresa Soares Lutterbach ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Dry Matter ◽  
Degree Of Polymerization ◽  
Palm Tree ◽  
Euterpe Oleracea ◽  
Neutral Ph ◽  
Steel Aisi ◽  
Seed Extracts ◽  
Euterpe Oleracea Mart

Euterpe oleracea Mart. (Arecaceae) is an endogenous palm tree from the Amazon region. Its seeds correspond to 85% of the fruit’s weight, a primary solid residue generated from pulp production, the accumulation of which represents a potential source of pollution and environmental problems. As such, this work aimed to quantify and determine the phytochemical composition of E. oleracea Mart. seeds from purple, white, and BRS-Pará açaí varieties using established analytical methods and also to evaluate it as an eco-friendly corrosion inhibitor. The proanthocyanidin quantification (n-butanol/hydrochloric acid assay) between varieties was 6.4–22.4 (w/w)/dry matter. Extract characterization showed that all varieties are composed of B-type procyanidin with a high mean degree of polymerization (mDP ≥ 10) by different analytical methodologies to ensure the results. The purple açaí extract, which presented 22.4% (w/w) proanthocyanidins/dry matter, was tested against corrosion of carbon steel AISI 1020 in neutral pH. The crude extract (1.0 g/L) was effective in controlling corrosion on the metal surface for 24 h. Our results demonstrated that the extracts rich in polymeric procyanidins obtained from industrial açaí waste could be used to inhibit carbon steel AISI 1020 in neutral pH as an abundant, inexpensive, and green source of corrosion inhibitor.

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

Adsorption of corrosion inhibitor IFKhAN-92 on chrome-nickel steel from mineral acid solutions

2020 ◽  
pp. 27-32
Author(s):  
Ya. G. Avdeev ◽  
◽  
D.S. Kuznetsov ◽  
Yu.I. Kuznetsov ◽  
◽  
...  
Keyword(s):  
Corrosion Inhibitor ◽  
Mineral Acid ◽  
Nickel Steel ◽  
Acid Solutions

New atmospheric corrosion inhibitor of aluminum alloy D16

2020 ◽  
pp. 38-46
Author(s):  
A.M. Semiletov ◽  
◽  
Yu.B. Makarychev ◽  
A.A. Chirkunov ◽  
L.P. Kazansky ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibitor ◽  
Atmospheric Corrosion ◽  
Protective Layer ◽  
Humid Atmosphere ◽  
Water Condensation ◽  
Equimolar Composition ◽  
Aluminum Hydroxides ◽  
Daily Water ◽  
20 Nm

The application of mixed corrosion inhibitor (CI), which is an equimolar composition of oleoyl sarcosinate (SOS) and sodium flufenamate (SFF), for protection of D16 aluminum alloy from atmospheric corrosion has been studied. The polarization measurements used to assess the effectiveness of preliminary passivation of the alloy with solutions of SOS, SFF and their composition showed significant advantages of mixed CI. The XPS method was used to study features of CI adsorption on the surface of D16 alloy. It has been established that upon adsorption of SOS and SFF separately a monolayer is formed, firmly bonded to the alloy surface, thickness of which is not exceeding 2.6—3.2 nm. After the joint adsorption of these CI, the layer thickness reaches 12—20 nm. The composition of this layer includes a considerable amount of Al3+ ions (~20%) related to their compounds with SFF and SOS, as well as to aluminum hydroxides. A possible mechanism for the formation of such a protective layer is proposed. The results of corrosion tests in a humid atmosphere with daily water condensation on samples of D16 alloy confirmed the high protective ability of the mixed CI film.

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