کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1680229 | 1518670 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Non-destructive evaluation of weld discontinuity in steel tubes by gamma ray CT
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
Weld discontinuity in steel tubes was investigated and dimensioned in a data analysis sequence. The correlation matrix, cosine distance and hierarchical cluster were applied as multivariate data processing in this analysis. Welded rings of 9236 mm3 were scanned in gamma ray CT in test tubes and compared with steel base and references. The discontinuity volume detected in the welded rings was assessed based on the pixel volume in data sampling. By modeling gamma ray trajectories and rotation angles in CT scanning, a discontinuity of 0.3 mm was determined and a limit detection of 23 mm3 was obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 349, 15 April 2015, Pages 155–162
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 349, 15 April 2015, Pages 155–162
نویسندگان
A.E. Moura, C.C. Dantas, M.S. Nery, J.M. Barbosa, T.L. Rolim, E.A.O. Lima, S.B. Melo, V.A. Dos Santos,