Novel experimentation techniques to study damage accumulation and microstructural instability during creep of super alloy single crystals at high temperatures (>1000°C)

The objective of the present work is to demonstrate that it is well worth the effort to develop novel experimentation techniques to study creep in Ni base super alloy single crystals above 1000°C. A miniature tensile creep specimen and a double shear creep specimen have been developed. These are useful in high temperature technology because they can be directly taken out from cast turbine blades (miniature tensile creep specimens) and provide...