Detection of Hardness Variations of Steel Through Stainless Steel
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
Nuclear reactor pressure vessels are clad with a layer of stainless steel approximately 6 millimeters thick. The characteristics of the steel of the pressure vessels are known to change with cumulative radiation exposure from the operating reactor. In situ nondestructive determination of the extent of the changes of the steel characteristics must be made through the stainless-steel cladding. Preliminary tests described here indicate that AC magnetic bridges can differentiate among steels of differing characteristics through stainless cladding.