کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1801157 1024560 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of surface decarburization depth by magnetic Barkhausen noise technique
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Evaluation of surface decarburization depth by magnetic Barkhausen noise technique
چکیده انگلیسی

Industrially unfavorable process of steel surface decarburization was induced by annealing in air. Two methods of after-anneal surface treatment were used: an acid pickling and a sand blasting. The obtained decarburized layers were examined by optical microscope, wave dispersive spectrometer, and surface X-ray diffraction method. Magnetic Barkhausen noise technique was tested for applicability of non-destructive characterization of the decarburized layer depth. A newly introduced parameter, Barkhausen noise coercivity, was proposed for practical use due to its sensitivity to decarburization and stability to measurement conditions. Other magnetic parameters, e.g. number of Barkhausen noise counts, were found to be sensitive to the compressive residual stress caused by the sand blasting.

Research highlights
► Barkhausen coercivity shows good stability and sensitivity to decarburization depth.
► Number of Barkhausen noise counts indicates compressive residual stress.
► Rms value of Barkhausen noise shows nonmonotonic dependence on decarburization depth.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 323, Issue 12, June 2011, Pages 1692–1697
نویسندگان
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