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Strength, fracture and fatigue properties of materials and weld joints from feeder piping of water turbine
Dlouhý, Ivo ; Kruml, Tomáš ; Čupera, Pavel ; Chlup, Zdeněk ; Šiška, Filip
Sets of deformation, strength, fracture mechanical and fatigue properties of base materials and weld joints from feeder piping of water turbine is summarised in the report. There are data from 30 mm thick steel sheet and weld joint of this sheet with the casting part. R-curves have been also measured by loading - unloading method at room temperature and at 0°C. In addition tests of CT specimens in the upper shelf and transition region have been carried out with the aim to specify the lowest (conservative) value of the fracture toughness. Fatigue tests are reported too, mainly based on cyclic response curves and life time curves of the base material and heat affected zone of the weld joint between sheet materials.

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