Sökning: "grain angle"
Visar resultat 16 - 20 av 68 avhandlingar innehållade orden grain angle.
16. Sub-grain structure in additive manufactured stainless steel 316L
Sammanfattning : The thesis focuses on exploring the sub-grain structure in stainless steel 316L prepared by additive manufacturing (AM). Two powder-bed based AM methods are involved: selective laser melting (SLM) and electron beam melting (EBM). LÄS MER
17. Machinability variations in alloy 718 turbine components
Sammanfattning : Machinability Variations in Alloy 718 Turbine Components PAJAZIT AVDOVIC Department of Materials and Manufacturing TechnologyChalmers University of Technology AbstractAlloy 718 has a reputation for being very troublesome during the cutting process. It was suspected that this material was too hard and having too fine grain size and that these characteristics caused damage to cutting tools during processing. LÄS MER
18. Manufacturihng of heavy rings and large copper canisters by plastic deformation
Sammanfattning : Plastic deformation processes transform material fromas-received state to products meeting certain requirements inproperties, microstructure and shape. To achieve thistransformation, the relationship between material response andprocess conditions should be understood. LÄS MER
19. Numerical Modelling of Short Fatigue Crack Growth
Sammanfattning : Fatigue implies repeated loading and unloading of a structure, and components subjected to fatigue might experience nucleation of cracks, and subsequent crack propagation. This might lead to catastrophic consequences, such as complete failure of a structure. LÄS MER
20. Magnetic Bicrystal Junctions - a Study of Half-Metallic Manganite Grain Boundaries
Sammanfattning : This thesis presents studies on magnetic bicrystal junctions. In these, films on either side of the junction are structurally and magnetically misoriented. This type of device enables us to study junction magnetoresistance and spin polarized charge transport between ferromagnets with well defined directions of magnetization. LÄS MER