Search for dissertations about: "Local dissolution"

Showing result 1 - 5 of 26 swedish dissertations containing the words Local dissolution.

  2. 1. Influence of carbides and nitrides on corrosion initiation of advanced alloys : A local probing study

    Author : Eleonora Bettini; Jinshan Pan; Thomas Ladwein; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; carbides; nitrides; microstructure; CoCrMo alloys; duplex stainless steels; localized corrosion; transpassive dissoluti on; elemental depletion; AFM; TEM; SEM.;

    Abstract : Advanced alloys often present precipitated carbides and nitrides in their microstructure following exposure to elevated temperatures. These secondary phases are usually undesirable, because potentially deleterious for the corrosion and mechanical performances of the material. READ MORE

  4. 2. Corrosion Behavior of Duplex Stainless Steels in Acidic-Chloride Solutions Studied with Micrometer Resolution

    Author : Marc Femenia; KTH; []
    Keywords : In situ; local dissolution; STM; SKPFM; MFM; SAES; duplex stainless steel; acidic-chloride solution;

    Abstract : The local corrosion behavior of duplex stainless steel (DSS)is affected by a wide variety of factors. Localized corrosionof DSS frequently starts at micrometer scale inclusions orprecipitates, which are often segregated in theaustenite-ferrite boundary regions. READ MORE

  5. 3. In-situ electrochemical STM studies of uplex stainless steel

    Author : Marc Fermenia; KTH; []
    Keywords : In-situ; Local dissolution; Electrochemical; STM; Duplex stainless stee; Acidicchloride solution;

    Abstract : .... READ MORE

  6. 4. Characterisation of an in vitro dissolution method for assessment of novel pulmonary drug delivery systems : With a focus on controlled release systems

    Author : Irès van der Zwaan; Göran Frenning; Per Hansson; Rebecca Fransson; Alessandra Rossi; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pulmonary drug delivery; in vitro dissolution; mechanistic model; controlled release; physiologically based biopharmaceutics modelling;

    Abstract : Pulmonary drug delivery has been used for decades to treat local diseases like asthma. When using the pulmonary route to deliver drugs, several important lung features are being used, such as a large surface area available for absorption, high organ vascularization, and a thin blood-alveolar barrier. READ MORE

  7. 5. Relativenobility of precipitated phases in stainless steels : Evaluation with a combination of local probing techniques

    Author : Namurata Sathirachinda; Jinshan Pan; Thomas Ladwein; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Teknisk materialvetenskap;

    Abstract : Stainless steels often exhibit complex transformation and precipitation behaviour due to a high content of alloying elements. Secondary phases can be formed in the temperature range of 300-1000°C and are generally undesirable due to their detrimental effect on mechanical properties and corrosion resistance of stainless steels. READ MORE