کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1582150 1514870 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of tensioning and sectioning on residual stresses in aluminium AA7749 friction stir welds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
The effect of tensioning and sectioning on residual stresses in aluminium AA7749 friction stir welds
چکیده انگلیسی

Using synchrotron X-ray diffraction the residual stress distribution has been measured in a series of AA7449-W51 aluminium friction stir welds that had been tensioned to different loads during welding. By modifying the stress accumulation path, the application of a tensioning stress has reduced the tensile magnitude of the final residual weld stresses. In the present case the residual stresses were minimised when the applied load is ∼35% of the room temperature yield stress of the parent material. Subsequent sectioning of the weld into shorter test lengths, as might be necessary for weld testing, resulted in a progressive and significant relaxation of the residual stress field. The effect of tensioning on the weld component distortion also has been investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 488, Issues 1–2, 15 August 2008, Pages 16–24
نویسندگان
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