کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10292889 511591 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Detection of plastic deformation in low carbon steel by SQUID magnetometer using statistical techniques
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Detection of plastic deformation in low carbon steel by SQUID magnetometer using statistical techniques
چکیده انگلیسی
In order to non-destructively detect the amount of plastic deformation accumulated in low carbon steel of S25C, the distribution of localized magnetism has been measured for plate-type S25 tensile specimens with plastic strains up to 6.45% by ultrahigh sensitive magnetic probes using superconducting quantum interference device (SQUID). The slope value obtained from the SQUID signal pattern, which means the ratio of the change in SQUID output voltage to the change in AC current flow in the superconducting magnet, was chosen as a candidate indicator to detect plastic strains in the present study. For quantitative assessment, statistical processing was performed for determining the datum of the distribution of the slope value. As a result of the statistical approach, small-scale plastic deformation could be detected on S25C tensile specimens. It was suggested that the magnetic measurement using SQUID magnetometer supported by the statistical techniques was a promising non-destructive evaluation method to detect the amount of plastic deformation accumulated in low carbon steel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 38, Issue 1, January 2005, Pages 53-57
نویسندگان
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