Sökning: "Rolf Sandström"
Visar resultat 1 - 5 av 20 avhandlingar innehållade orden Rolf Sandström.
1. Mechanical Properties of Welds at Creep Activation Temperatures
Sammanfattning : Welds in materials intended for service at temperatures above the creep activation temperature often develop damage before the base metal. The weld is a discontinuity in the material and stresses and strains often accumulate in the weld. Knowledge of the properties of the weld is essential to the safe operation of the component containing the weld. LÄS MER
2. Modeling defect structure evolution in spent nuclear fuel container materials
Sammanfattning : Materials intended for disposal of spent nuclear fuel require a particular combination of physical and chemical properties. The driving forces and mechanisms underlying the material’s behavior must be scientifically understood in order to enable modeling at the relevant time- and length-scales. LÄS MER
3. Fatigue Strength of Friction Stir Welded Joints in Aluminium
Sammanfattning : Solid state Friction stir welding (FSW) is of major interest in the welding of aluminium since it improves the joint properties. Many applications where Al-alloys are used are subject to varying load conditions, making fatigue failure a critical issue. LÄS MER
4. Strengthening and degradation mechanisms in austenitic stainless steels at elevated temperature
Sammanfattning : With rapid economic developments and rising living standards, the demand for electricity all over the world is greatly increased. Due to high fuel costs, the steam boilers with higher steam temperature and pressure are needed to decrease the cost of power generation throughout the world extensively. LÄS MER
5. High temperature performance of materials for future power plants
Sammanfattning : Increasing energy demand leads to two crucial problems for the whole society. One is the economic cost and the other is the pollution of the environment, especially CO2 emissions. Despite efforts to adopt renewable energy sources, fossil fuels will continue to dominate. LÄS MER