1. Corrosion behavior of carbon steel, stainless steel, aluminum and copper upon exposure to biodiesel blended with petrodiesel
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Marcos Roberto Monteiro, Sebastião Elias Kuri, Carlos Alberto Della Rovere, Vitor Luiz Sordi, R. Silva, Cristie Luis Kugelmeier, Universidade Federal de São Carlos (UFSCar), and Universidade Estadual Paulista (Unesp)
- Subjects
food.ingredient ,Materials science ,Carbon steel ,020209 energy ,chemistry.chemical_element ,02 engineering and technology ,engineering.material ,Compatibility ,Industrial and Manufacturing Engineering ,Soybean oil ,Corrosion ,Diesel fuel ,food ,020401 chemical engineering ,Aluminium ,0202 electrical engineering, electronic engineering, information engineering ,0204 chemical engineering ,Electrical and Electronic Engineering ,Civil and Structural Engineering ,Biodiesel ,Mechanical Engineering ,Metallurgy ,Compatibility (geochemistry) ,Building and Construction ,Pollution ,Copper ,General Energy ,chemistry ,Steel ,engineering ,Aluminum - Abstract
Made available in DSpace on 2021-06-25T10:26:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-07-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) In this study, the compatibility and corrosion behavior of carbon steel, stainless steel, aluminum and copper in contact with blends composed of biodiesel (consisting of soybean oil, beef tallow and swine lard) and petrodiesel were evaluated. Static immersion tests (total, partial and crevice) and exposure in vapor phase were carried out for 2160 h at 50 °C. Our main findings indicate that fuel blends influence the corrosion behavior, being observed a less corrosive attack on the materials, except for copper that presented an anomalous corrosion behavior, with a clear trend towards lower corrosion rates. Carbon steel and stainless steel in total, partial and crevice tests presented surface morphology with slightly changes, while carbon steel exposed in vapor phase showed corrosive attack. Copper presented the highest corrosion rates in partial (9.5273 μm/y), total (9.1484 μm/y) and crevice (6.6178 μm/y) tests in the B7 blend, respectively; and the lowest corrosion rates in total (0.0547 μm/y) for the B15 blend; in partial (0.4926 μm/y) and crevice (0.0182 μm/y) tests for the B30 blend. Among the materials evaluated, copper showed higher influence on biodiesel oxidative stability. Aluminum exhibited good compatibility and did not show any compound formed on its surface without presenting any corrosion. Munir Rachid Corrosion Laboratory Department of Materials Engineering Federal University of São Carlos, Rodovia Washington Luis, Km 235 Department of Mechanical Engineering Federal University of São Carlos, Rodovia Washington Luis, Km 235 Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives (Cempeqc) Institute of Chemistry São Paulo State University (UNESP), Prof. Francisco Degni 55, Zip Code 14800-060 Department of Materials Engineering Federal University of São Carlos, Rodovia Washington Luis, Km 235 Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives (Cempeqc) Institute of Chemistry São Paulo State University (UNESP), Prof. Francisco Degni 55, Zip Code 14800-060 CAPES: 001 CNPq: 130347/2015-9 CNPq: 311163/2017-3
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- 2021
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