Method for detection of materials degradation of alloy steels after long service operation.

摘要

A method of detecting deterioration with time of an alloy steel used at high temperatures is described, comprising measuring fluctuation in corrosion potential of the alloy steel and judging a degree of deterioration with time of the alloy steel based on the spectrum analysis of the fluctuation in corrosion potential. In accordance with the testing method of the present invention, a degree of deterioration of an alloy steel used as a structural material at high temperatures for a long time can be determined easily and further with high reliability and accuracy.