2025-12-162025-12-162025-09-22CORDEIRO, Roseane Macedo. Óleo essencial do botão do cravo-da-índia (Syzygium Aromaticum) como inibidor natural da corrosão do aço carbono em meio ácido (HCI). Orientador: Marcos Vinicius da Silva Paula. 2025. 60 f. Trabalho de Curso (Bacharelado em Engenharia de Materiais) – Faculdade de Engenharia de Materiais, Campus Universitário de Ananindeua, Universidade Federal do Pará, Ananindeua, 2025. Disponível em: https://bdm.ufpa.br/handle/prefix/9009. Acesso em:.https://bdm.ufpa.br/handle/prefix/9009Controlling corrosion processes in the industrial sector is essential for reducing costs and ensuring the preservation of equipment and tools in general. Therefore, several materials investigations are being conducted to find increasingly efficient and environmentally friendly corrosion inhibitors. Therefore, this study aims to investigate the anticorrosive efficacy of clove bud essential oil (CBO) (Syzygium aromaticum) on carbon steel in a hydrochloric acid medium (1.0 mol L-1 HCl). To evaluate the oil's anticorrosive action, the gravimetric mass loss method was used, with tests performed in two 24-h periods and another in 7 days. During these intervals, the inhibition efficiency (EI) and corrosion rate (CR) were determined. The concentrations of clove bud essential oil investigated were 0 g/L (free or blank), 0.5 g/L, 1.0 g/L, 2.0 g/L, and 4.0 g/L. Thus, a 97% inhibition efficiency was observed for steel corrosion in an acidic environment using 4.0 g/L of (OEBC) over 7 days. Additionally, a reduction in the corrosion rate proportional to the concentration of (OEBC) used was observed, both at 24 hours and at 7 days. Therefore, it is concluded that (OEBC) has potential for application as an inhibitor of steel corrosion in acidic environments, minimizing the oxidative process in this environment.Acesso AbertoAço carbonoCorrosãoInibidor de corrosãoGravimetriaCarbon steelCorrosionCorrosion inhibitorGravimetryCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA FISICA::CORROSAOTrabalho de Curso - Graduação - MonografiaAttribution-NonCommercial-NoDerivs 3.0 Brazil