Sökning: "toughness"

Visar resultat 6 - 10 av 240 avhandlingar innehållade ordet toughness.

  1. 6. The fracture mechanisms in duplex stainless steels at sub-zero temperatures

    Författare :Johan Pilhagen; Pavel Korzhavy; Rolf Sandström; Kim Wallin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Duplex stainless steel; Weldments; Delamination; Fracture toughness; Impact toughness; Cleavage fracture; Nickel;

    Sammanfattning : The aim of the thesis was to study the susceptibility for brittle failures and the fracture process of duplex stainless steels at sub-zero temperatures (°C). In the first part of the thesis plates of hot-rolled duplex stainless steel with various thicknesses were used to study the influence of delamination (also known as splits) on the fracture toughness. LÄS MER

  3. 7. Mechanical Recycling of Engineering Thermoplastics using Alloying Techniques

    Författare :Xiaodong Liu; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sandwich injection moulding; recycling; compatibilizer; in-situ compatibilization; engineering thermoplastics; J-integral; toughness; impact modifier;

    Sammanfattning : The aim of this thesis is to indicate routes by which recycled engineering thermoplastics (ETP) can be upgraded using alloying techniques. Recycled ETP have often been subjected to long-term service-induced degradation, so that the residual properties of recycled ETP need to be improved. LÄS MER

  4. 8. Utilization of Wild Fruit in Mozambique – Drying of Vangueria infausta (African medlar)

    Författare :Eulália Chiau; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vangueria infausta; drying; maltodextrin; sucrose; softener; toughness; solar-assisted pervaporation; aroma; crystallization; water activity;

    Sammanfattning : Vangueria infausta (African medlar) is a wild fruit found in southern and central Mozambique. The ripe fruit has a leathery skin enclosing three to five seeds embedded in a soft pulp that tastes like apple. It plays an important role in the diet of the rural population and has the potential for commercial use. LÄS MER

  5. 9. Toughness of short fiber composites : an approach based on crack-bridging

    Författare :Patrik Fernberg; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Sammanfattning : The presented work considers how to properly characterize fracture properties of short fiber composites (SFC). Associated with fracture of SFC is the creation of a comparably widespread fracture process zone. This zone develops since a number of inelastic failure mechanisms (e.g. LÄS MER

  7. 10. Microstructure and mechanical properties of chromium steel weld metals

    Författare :Guang-Jun Cai; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CrMo steel; phase transformation; weld metal; toughness; microstructure; precipitate; strength;

    Sammanfattning : .... LÄS MER