کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
294945 511504 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inspection of stress corrosion cracking in welded stainless steel pipe using point-focusing electromagnetic-acoustic transducer
ترجمه فارسی عنوان
بازرسی ترک خوردگی تنش در لوله های فولادی ضدزنگ جوش داده شده با استفاده از مبدل الکترومغناطیسی صوتی نقطه متمرکز
کلمات کلیدی
مبدل الکترومغناطیسی صوتی؛ نقطه تمرکز؛ موج SV؛ جوش؛ ترک خوردگی تنش
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Point-focusing EMATs were developed for inspection of stress-corrosion cracking.
• The 2 MHz EMAT was suitable for inspection of stainless steels.
• Stress-corrosion cracking near the weld metal was clearly detected.
• Crack detectability of the PF-EMAT was comparable to that of the phased-array sensor.

Point-focusing electromagnetic-acoustic transducers (PF-EMATs) for shear-vertical (SV) waves were developed for crack inspection of stainless-steel pipes. The transducer has improved defect detectability by accumulating SV waves generated by concentric line sources at a focal point in phase. An optimum frequency for defect detection was found to be 2 MHz, with which a crack of 0.5 mm depth near a weld was clearly detected. The EMAT exhibited defect detectability comparable to that of a conventional phased-array piezoelectric transducer, indicating that this new EMAT is highly practical for the non-contacting evaluation of stress-corrosion cracking in stainless steels.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 83, October 2016, Pages 88–93
نویسندگان
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