Essays about: "hardness tests"

Showing result 16 - 20 of 80 essays containing the words hardness tests.

  1. 16. A Geometallurgical Approach Towards the Correlation Between Rock Type Mineralogy and Grindability: A case study in Aitik mine, Sweden

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Raoul Schmitt; [2021]
    Keywords : Geometallurgy; autogenous grinding; process mineralogy; grindability test; abrasion breakage; automated mineralogy;

    Abstract : Aitik is a large copper porphyry type deposit located in northern Sweden, currently exploited at an annual rate of approximately 45Mt. The ore's exceptionally low head grade of 0.22 % Cu and varying degrees of hardness across the entire deposit pose challenges to the two fully autogenous grinding lines, each of which comprises a 22. READ MORE

  3. 17. Analysis of a Plate of High Strength Steel: Simulation of Impact and Determination of Residual Stresses

    University essay from KTH/Hållfasthetslära

    Author : Martin Hviid; [2021]
    Keywords : ;

    Abstract : In this study a finite element model has been created in ABAQUS/Standard in order to replicate impact tests performed by SSAB and to determine residual stresses in a plate. Uniaxial tensile tests have been done in order to determine the plastic behaviour of a high strength steel from the manufacturer SSAB and to determine whether the material can be assumed to be isotropic. READ MORE

  4. 18. Laser-arc hybrid welding of high strength steel : Weld quality and process stability

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : David Lohse; [2021]
    Keywords : Laser; arc; hybrid; welding; high; strength; steel; high-strength; HSLA; weld quality; process stability;

    Abstract : The development of high strength steel enables constructions to be made with less material than with previous used steel grades. The possibility of creating lightweight constructions with the same or even better mechanical properties is of high focus in the steel industry today. READ MORE

  5. 19. Erosion Behaviour of Thermal Barrier Coatings

    University essay from Linköpings universitet/Konstruktionsmaterial

    Author : Caroline Wännman; [2021]
    Keywords : erosion; TBC; APS; EB-PVD; PS-PVD; failure mechanisms;

    Abstract : Thermal barrier coatings (TBCs) are advanced material systems used in the hot sections of gas turbines. The TBCs are designed to provide insulation against hot gases by a ceramic top coat and to provide oxidation and corrosion resistance by a metallic bond coat. READ MORE

  6. 20. Three-Dimensionally Printed Versus Conventionally Cured Polymer-Based Material For Interim Restorations.

    University essay from Umeå universitet/Tandläkarutbildning

    Author : Doaa Al-Jubouri; Mohammad Saad; [2021]
    Keywords : ;

    Abstract : ABSTRACT  Background: Three-dimensional (3D) printing is a manufacturing technique, based on building objects layer by layer. It has received more attention lately especially in the medical and dental fields. READ MORE