The analysis of material, operating parameters and process allows to identify the causes that may have led to the failure or the damaging of an artefact.It is possible to define the time to failure of a component or prevent future disservice and system downtime, or more simply to plan checks and/or replacements. It allows to identify the liabilities (for the project, manufacture, operation) and to set up the necessary corrective measures. The analysis is based on the search for and study of the traces that the various physical, chemical and/or electrochemical damage mechanisms may have left behind. By matching any traces with the operating conditions it is possible to identify the damage phenomena that have occurred. In this way it is possible to propose material changes, new operating conditions, etc..