Search for dissertations about: "corrosion inhibitors"

Showing result 1 - 5 of 7 swedish dissertations containing the words corrosion inhibitors.

  2. 1. Application of copper corrosion inhibitors in mineral oil : Surface analytical studies and corrosion mitigation evaluations

    Author : Martina Levin; Christofer Leygraf; Per Redelius; Roy Johnsen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This doctoral thesis explores the copper corrosion inhibiting properties of a number of nitrogen containing hetero-organic compounds in refined mineral oil. Traditional organic corrosion inhibitors, as well as novel and bioorganic compounds have been studied. READ MORE

  4. 2. Strain-assisted corrosion cracking and growth rate inhibitors

    Author : Andrey P Jivkov; Mekanik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; materialteknik; Mechanical engineering; Material technology; Materiallära; Stress intensity factor; Inhomogeneous materials; Crack evolution; Stress corrosion cracking; Moving boundary; hydraulics;

    Abstract : A model for evolution of cracks as a result of strain-assisted corrosion is presented. The considered cracks possess a realistic geometry, where the tip region is an integral part of the crack surface instead of being a singular point. This geometry is either implicitly defined or is a consequence of crack nucleation from surface irregularities. READ MORE

  5. 3. The Mussel Adhesive Protein (Mefp-1) : A GREEN Corrosion Inhibitor

    Author : Fan Zhang; Jinshan Pan; Douglas C. Hansen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbon steel; mussel adhesive protein; Mefp-1; inhibitor; adsorption; film forming; complexation; cross-linking; ceria nanoparticle; composite film; EIS; AFM; QCM-D; ATR-FTIR; Confocal Raman Micro-spectroscopy; DFT calculation;

    Abstract : Corrosion of metallic materials is a natural process, and our study shows that even in an alkaline environment severe corrosion may occur on a carbon steel surface. While corrosion cannot be stopped it can be retarded. READ MORE

  6. 4. Surface Chemistry of Components on Aqueous Metal Working Fluids

    Author : Mats A. R. Tunius; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Micelle; water based; Magnetite; metal working fluides; microcalorimetry; adsorption; corrosion inhibition; Bolaform surfactant; 10-Decanedicarboxylic acid; Alumina; surface chemistry; 1; aggregation;

    Abstract : The aim of the work presented in this thesis is to contribute to an increased knowledge regarding the basic surface chemistry of water based metal working fluids, in particular the relation between aggregational behaviour in solution and the formation of technical important adsorption layers of e.g. READ MORE

  7. 5. Boron compounds as additives to lubricants : synthesis, characterization and tribological optimization

    Author : Faiz Ullah Shah; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : Developing new technological solutions, such as use of lightweight materials, less harmful fuels, controlled fuel combustion processes or more efficient exhaust gas after-treatment, are possible ways to reduce the environmental impact of machines. Both the reduction of wear and the friction control are key issues for decreasing of energy losses, improving efficiency and increasing of the life-span of an engine. READ MORE