Search for dissertations about: "GDOES"

Found 5 swedish dissertations containing the word GDOES.

  1. 1. Low-temperature carburizing/nitriding of austenitic stainless steels - Influence of alloy composition on microstructure and properties

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Giulio Maistro; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tribology; surface engineering; S-phase; SEM; corrosion; XPS; Austenitic stainless steel; expanded austenite; plasma nitriding; EBSD; XRD; thermal stability; low-temperature carburizing; surface analysis; GDOES;

    Abstract : Austenitic stainless steels are among the most used materials in applications where corrosion resistance is important, as the food, pharmaceutical, chemical, oil and gas industries. However, low hardness and poor tribological properties is often an obstacle for their applicability. READ MORE

  2. 2. Fundamental studies on the high temperature corrosion mechanisms of a 22Cr austenitic stainless steel in environments related to oxy-fuel combustion

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Luciana Intiso; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; EDX; TEM; KCl; Na2SO4; SEM; FIB; high temperature oxidation; sulphur dioxide; carbon dioxide; GI-XRD; stainless steels; water vapour; GDOES; t-EBSD;

    Abstract : This thesis concern the high temperature corrosion mechanisms of stainless steels, with focus on a 22 wt.% Cr FeNiCr alloy (Sanicro 25), in environments related to oxy-fuel combustion, which is a promising technology that can provide enhanced CO2 recovery and sequestration from power plants by using post-combustion capture. READ MORE

  3. 3. Microstructural Characterization of Expanded Austenite in 304L and 904L Austenitic Stainless Steels

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Giulio Maistro; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low-temperature thermochemical treatment; S-phase; SEM; thermal stability; surface engineering; surface analysis; EBSD; XRD; austenitic stainless steel; XPS; GDOES; Expanded austenite;

    Abstract : Austenitic stainless steels are among the most used materials in modern industry, mainly because of their superior corrosion resistance. However, low hardness and poor tribological properties often restrict their applicability. READ MORE

  4. 4. The influence of SO2 on the high temperature corrosion of Fe and Fe-Cr alloys

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Anders Järdnäs; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; iron; H2O; high temperature corrosion; Fe-2.25Cr-1Mo steel; SO2; 304L; oxidation;

    Abstract : Sulfur dioxide is an important pollutant in combustion gases and plays a major role in the high temperature corrosion of many metals and alloys. This work investigates the influence of small amounts of SO2 on the high temperature corrosion of iron, chromium and several Fe-Cr alloys. READ MORE

  5. 5. Atmospheric corrosion of copper and copper-based alloys in architecture from native surface oxides to fully developed patinas

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Tingru Chang; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Engineering; Kemiteknik;

    Abstract : Copper and copper-based alloys are commonly used in both ancient and modern architecture. This requires an in-depth fundamental and applied understanding on their atmospheric corrosion behavior at different climatic, environmental and pollutant levels and how these parameters influence e.g. READ MORE