Search for dissertations about: "cr2o3"

Showing result 1 - 5 of 30 swedish dissertations containing the word cr2o3.

  2. 1. Micromechanics of oxides - From complex scales to single crystals

    Author : Anand Harihara Subramonia Iyer; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cr2O3; oxide scales; micromechanical testing; fracture; electron microscopy;

    Abstract : Protective oxide scales shield high temperature materials from corrosion, thus ensuring safety and long material life under adverse operating conditions. Cracking and spallation of such scales can lead to fatigue crack initiation and expose the material to further oxidation. READ MORE

  4. 2. Microstructural investigation on high temperature oxidation of Cr2O3-forming and Al2O3-forming steels

    Author : Fang Liu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high temperature oxidation; FeCrAl alloys; TEM; water vapour; SEM; FIB; stainless steels; EDX;

    Abstract : .... READ MORE

  5. 3. Investigations of Stabilization of Cr in Spinel Phase in Chromium-Containing Slags

    Author : Galina Jelkina Albertsson; Lidong Teng; Pekka Taskinen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cr2O3 containing slags; gas-slag equilibrium; chromium partition; spinel;

    Abstract : The influence of basicity, heat treatment as well as different oxygen partial pressures on the phase relationships in the CaO-MgO-SiO2-Cr2O3 slags was studied with a view to control the precipitation of Cr-spinel in the slag phase. The equilibrium phases in CaO-MgO-SiO2-Cr2O3 slag system in the range on 1673-1873 K have been investigated under low oxygen partial pressure as well as in as air atmosphere. READ MORE

  6. 4. Microstructural investigation of high temperature oxidation of Al2O3-forming and Cr2O3-forming steels - The influence of water vapour

    Author : Fang Liu; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  7. 5. Experimental and theoretical studies on treatment and recycling of pickling sludge generated in stainless steel production

    Author : Ping Ma; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

    Abstract : The thesis work is one of the on-going research projects within MiMeR (Minerals and Metals Recycling Research Centre) at Division of Process Metallurgy, Luleå University of Technology in Sweden. The major objectives of this thesis work are: i) to characterize raw materials and products obtained from experiments, ii) to study the mechanisms of solid-state reduction and smelting reduction of pickling sludge and iii) to test in laboratory different process alternatives to treat and recycle pickling sludge. READ MORE