Search for dissertations about: "austenitic stainless"

Showing result 1 - 5 of 99 swedish dissertations containing the words austenitic stainless.

2. 1. Passivation of Austenitic Stainless Steel

   Author : Lena Wegrelius; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steel; chloride; molybdenum; passivation; hydrochloric acid; nitrogen; ESCA; dissolution;

   Abstract : The objective of this thesis is to study the corrosion resistance and passivation of high alloyed austenitic stainless steels exposed to hydrochloric acid. The introductory section gives a background to the subject; electrochemical measurements and surface analysis by the ESCA-technique (Electron Spectroscopy for Chemical Analysis). READ MORE

4. 2. Initiation and Repassivation of Pits on Austenitic Stainless Steel

   Author : Fredrik Falkenberg; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chloro complex; pitting corrosion; metastable pits; phosphate; nitrogen; passive film; chloride; repassivation; molybdenum; austenitic stainless steel;

   Abstract : Stainless steels can be damaged by pitting corrosion in presence of aggressive anions, such as halide ions. The aim of this work was to study different aspects on initiation and repassivation of pits on austenitic stainless steel in chloride solutions at ambient temperature. READ MORE

5. 3. Deformation and Fatigue Behaviour of Porous and Dense Austenitic Stainless Steel

   Author : Ulf Lindstedt; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mechanical properties; austenitic stainless steel; PM steel; nitrogen; small cracks; previous particle boundaries; microplasticity; grain size dependence; fatigue; porosity;

   Abstract : PM stainless steels are increasing in use and are expected to do so in the future. A lot of work has been carried out concerning production and sintering of stainless steel powders and on the resulting corrosion behaviour. The deformation behaviour of these materials is less studied. READ MORE

6. 4. Corrosion Fatigue of Stainless Steels

   Author : Jan Linder; KTH; []
   Keywords : Stainless steel; corrosion fatigue; crack propagation; spot weld;

   Abstract : The aim of this work was to investigate the effect ofchloride-containing environments on corrosion fatigueproperties for different stainless steels grades. The steelsinvestigated ranged from the standard 304 grade to thesuperaustenitic 654SMO and the superduplex SAF2507. READ MORE

7. 5. Hydrogen embrittlement and corrosion behavior of low-temperature carburized austenitic stainless steel

   Author : Xiao Qin; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low-temperature carburising; hydrogen embrittlement; Austenitic stainless steel; microstructure; corrosion behavior; expanded austenite;

   Abstract : For metallic components used in hydrogen environments, hydrogen embrittlement and corrosion have always been important considering potential failure risks. Among many metallic materials, austenitic stainless steel has found broad application because of its excellent corrosion and hydrogen embrittlement resistance. READ MORE