Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1503282 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Carburization alters the mechanical and magnetic properties of tubes used in pyrolysis furnaces. In this work, a giant magnetoresistive sensor was used to measure the magnetic flux density at the surface of samples with different carburization degrees. The magnetic measurements were correlated with the volumetric fraction of chromium carbides in each sample. A micro-genetic algorithm was set up to solve the inverse problem, which estimates from the magnetic measurements the spatial distribution of the volumetric fraction of the chromium carbides through the wall.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
I.C. Silva, L.L. Silva, R.S. Silva, J.M.A. Rebello, A.C. Bruno,