In this master thesis the aim is to develop a MatLab (or Python) interface to EngInit, a design and evaluation approach for SCC initiation. The interface is to be user friendly and applicable to constant elongation rate tests (CERTs) performed on nickel-base alloys in simulated primary water of pressurized water reactors. The CERTs are performed on flat, tapered tensile specimens in an autoclave. The analysis of the results yields as a minimum a post-test apparent threshold for SCC initiation. However, EngInit, being a design and evaluation approach for SCC initiation, can extract more information from the CERT.
It is the purpose of this thesis to develop the EngInit interface so that one can:
- Evaluate the SCC performance of a flat, tapered, tensile specimen that has been subject to a known loading history in a given environment.
- Obtain EngInit parameters for a given material in a given environment by comparing EngInit predictions to observations.