Search for dissertations about: "grey iron"

Showing result 1 - 5 of 27 swedish dissertations containing the words grey iron.

  1. 1. Protection of Biomolecules by Antioxidants - Mechanisms and Applications

    University dissertation from Department of Biotechnology, Lund University

    Author : Carl Grey; Lunds universitet.; Lund University.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dG; antioxidants; mass spectrometry; Analytical chemistry; Analytisk kemi; Food and drink technology; Livsmedelsteknik; Bioteknik; Biotechnology; DNA; Oxidation; Protein; Fenton reaction;

    Abstract : Popular Abstract in Swedish Reaktiva syreföreningar s.k. ROS uppstår naturligt i den syrerelaterade metabolismen eller i andra processer och den orsakar skador på essentiella föreningar i cellen såsom DNA, proteiner och fetter. Denna oxidation ligger till grund för många allvarliga sjukdomar hos människor som t. READ MORE

  2. 2. Defect Formation during Solidification in Grey Iron Castings

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Lennart Elmquist; Högskolan i Jönköping.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap; Shrinkage Porosity; Grey Iron; Solidification; Nucleation; Primary Austenite; DAAS; Eutectic Cells; Microstructure; Macrostructure; Hot Spot; Oxygen; Hydrogen;

    Abstract : The presence of defects is of major concern in the production of grey iron castings. Some defects are merely an aesthetic problem while others can be detrimental for the performance of the component. Among the several possible defects, shrinkage porosity is one of the more challenging to understand and avoid. READ MORE

  3. 3. On microstructure formation and mechanical properties in grey cast iron

    University dissertation from Jönköping : Jönköping

    Author : Attila Diószegi; Linköpings universitet.; Linköpings universitet.; Högskolan i Jönköping.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP; grey iron; nucleation; primary austenite; eutectic cell; growth rate; inoculation; thermal analysis;

    Abstract : A major user of cast components is the automotive industry, where the functionality of the components is related to environmental demands. Internal combustion engines are constantly being improved to emit less pollution. A vital part in this development is to increase the material properties of engine components during their life cycle. READ MORE

  4. 4. Factors Influencing the Formation of Shrinkage Porosity in Grey Cast Iron

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Lennart Elmquist; Högskolan i Jönköping.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap; Shrinkage porosity; Grey iron; Solidification; Primary austenite; Equiaxed zone; Columnar zone; CET; DAAS; Oxygen; Hydrogen;

    Abstract : The presence of shrinkage defects is of major concern in the production of grey iron castings. This type of defect can penetrate through the casting as a three-dimensional network. READ MORE

  5. 5. Metal Expansion Penetration During Solidification of Grey Cast Iron

    University dissertation from Linköping : Institutionen för konstruktions- och produktionsteknik

    Author : Izudin Dugic; Linköpings universitet.; Linköpings universitet.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP; Grey cast iron; solidification; solidification modelling; graphite expansion; molar volume; casting simulation; thennal analysis; thermoanalysis cup; casting temperature; inoculation; inoculant; meta! expansion penetration; eutectic cell size.;

    Abstract : The meta! expansion penetration has been examined experimentally. The whole casting process was simulated using a commercial software, in order to investigate the solidification characteristics and the pore formation in the casting studied. READ MORE