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Visar resultat 1 - 5 av 14 avhandlingar som matchar ovanstående sökkriterier.
1. Indentation effects in plastic zones
Sammanfattning : .... LÄS MER
2. Plastic Deformation of Duplex Stainless Steel
Sammanfattning : Duplex austenitic/ferritic stainless steels are increasingly used as an alternative to conventional austenitic grades. Main advantages of the duplex grades are good resistance to corrosion cracking and corrosion fatigue in environments that contain chloride. LÄS MER
3. Dynamic neck formation in elastic-plastic tensile bars
Sammanfattning : The time development of neck formation in ductile elastic-plastic bars is analyzed numerically in order to obtain a qualitative description of the features of dynamic neck localization under impact conditions. The full time history is visualized using contour plots of the time development of a strain rate parameter. LÄS MER
4. Microstructure and plastic deformation of textured CVD alumina coatings
Sammanfattning : It is known that the wear performance of α-alumina coatings produced by chemical vapor deposition (CVD) is significantly influenced by the type and degree of texture. However, the main reasons behind this behavior are not fully understood. This thesis contains studies of two related topics for increasing the understanding of α-alumina coatings. LÄS MER
5. Microstructure and wear mechanisms of textured CVD alumina and titanium carbonitride coatings
Sammanfattning : The aim of this thesis is to find the reasons behind how the wear performance of hard coatings produced by chemical vapor deposition (CVD) is influenced by their texture, as this is today not fully known. Therefore, differently textured coatings were synthesized, and subsequently analyzed both before and after specially designed machining tests. LÄS MER