Search for dissertations about: "magnetic plastic effect"

Showing result 1 - 5 of 10 swedish dissertations containing the words magnetic plastic effect.

  2. 1. Generalised stacking fault energy and plastic deformation of austenitic stainless steels

    Author : Dávid Sándor Molnár; Levente Vitos; Guocai Chai; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stacking fault energy; stainless steel; plasticity; deformation; ab initio; Teknisk materialvetenskap; Materials Science and Engineering; Steel Forming and Surface Engineering;

    Abstract : Austenitic stainless steels are primarily known for their exceptional corrosion resistance. They have the face centred cubic (FCC) structure which is stabilised by adding nickel to the Fe-Cr alloy. The Fe-Cr-Ni system can be further extended by adding other elements such as Mn, Mo, N, C, etc. in order to improve the properties. READ MORE

  4. 2. Carbon Effect on Mechanical Properties in Austenitic Steels - A DFT-based Study

    Author : Ruiwen Xie; Levente Vitos; Pär Olsson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Teknisk materialvetenskap; Materials Science and Engineering;

    Abstract : To study the effect of carbon interstitials in austenitic steels on plastic deformation mechanisms is the main goal of the present thesis. Using first-principlesmethods, the generalized stacking fault energy (GSFE) of C-alloyed γ-Fe is firstcalculated. The GSFE curve includes several prominent stacking fault energiesthat are fundamental for, e. READ MORE

  5. 3. Plasticity of memory functioning : genetic predictors and brain changes

    Author : Martin Bellander; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Human cognitive functions are not determined from birth, but are plastic and can be altered by environmental factors. The promising idea of a cognitive intervention that would improve memory functioning has attracted a lot of attention over the last decades. READ MORE

  6. 4. Fragmentation and waste rock compaction in small-scale confined blasting

    Author : Daniel Johansson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Abstract : Sub-level caving (SLC) is an important mass mining method, used at LKAB e.g. The caved rock or debris at the SLC interface reduces the fragmentation and the swelling of the blasted ring and it dissipates the explosive energy. These phenomena may immobilize the blasted ring, causing ore losses. READ MORE

  7. 5. First-principles investigations of planar defects

    Author : Lu Song; Levente Vitos; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Two types of planar defects, phase interface and stacking fault, are addressed in this thesis. The investigation is mainly carried out for stainless steels which are fundamental materials in modern society. For the phase interface, we investigate the metallic bcc/bcc and fcc/bcc phase interfaces. READ MORE