کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7120715 | 1461460 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Residual stress and surface properties of stainless steel welded joints induced by ultrasonic pulsed water jet peening
ترجمه فارسی عنوان
استرس های باقی مانده و خواص سطحی اتصالات جوش داده شده از جنس استنلس استیل القا شده توسط پترن آب جت پالس اولتراسونیک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
چکیده انگلیسی
The residual stress and subsurface hardness of welded joints treated by peening using an ultrasonic pulsed water jet at pressures of 20-60â¯MPa with various traverse speeds and standoff distances were measured. The effect of the treatment was quantified by measuring the residual stress using X-ray diffraction in three regions (the welded zone, heat-affected zone, and base metal). To analyse the depth of the plastic deformation induced by the pulsating water jet, microstructural analyses and micro-hardness measurements were conducted. The surface topography of the treated samples was examined by measuring the surface roughness using a contact surface roughness profilometer. After pulsating water jet treatment, the samples showed both increased residual stress and surface roughness at pressures of 20-60â¯MPa. Increased subsurface hardness of the treated region was observed up to a depth of 200-250â¯Âµm at pressures of 40 and 60â¯MPa, deeper than that of the sample prepared at 20â¯MPa. The microstructural analysis identified the involved plastic deformation phenomenon occurred during the treatment process. This method of surface treatment, where the efficiency of the jet is enhanced by the generation of pulses using an acoustic generator, showed promising results for its practical application as a post-weld treatment method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 127, October 2018, Pages 453-462
Journal: Measurement - Volume 127, October 2018, Pages 453-462
نویسندگان
Madhulika Srivastava, Sergej Hloch, Lucie Krejci, Somnath Chattopadhyaya, Amit Rai Dixit, Josef Foldyna,