کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5492512 1526249 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Residual stress analysis of energy-dispersive diffraction data using a two-detector setup: Part I - Theoretical concept
ترجمه فارسی عنوان
تجزیه و تحلیل استرس باقی مانده از داده های پراکندگی انرژی با استفاده از یک تنظیم دو آشکارساز: بخش 1 - مفهوم نظری
کلمات کلیدی
تجزیه و تحلیل تنش باقی مانده اشعه ایکس، پراش پرتوهای انرژی، تنظیم دو آشکارساز،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
چکیده انگلیسی
A new goniometer setup for energy-dispersive X-ray diffraction is introduced which is based on simultaneous data acquisition with two detectors D1 and D2, both of them freely movable in a horizontal as well as in a vertical plane. From the multitude of measurement configurations that can be realised with this setup, we figured out three efficient concepts which aim at the fast analysis of residual stress depth profiles by combining the diffraction data gathered with the two detectors. The characteristic feature of the first two configurations consists in the vertical (horizontal) positioning of the first (second) detector, which results in a diffraction geometry where the two scattering vectors span a plane that coincides with the X-circle used for sample tilt. Because each detector does see the sample under another viewing angle, both the positive and the negative ψ-branch are covered by just one χ-tilt between 0°and 90°(configuration 1) and 0°and 60°(configuration 2), thus allowing for the simultaneous analysis of the in- and out-of-plane residual stress depth gradients σiiτ and σi3τ (i=1,2), respectively, from data sets dD1hklχ and dD2hklχ. The third configuration introduced in this paper is based on a ϕ-rotation of the sample under a constant tilt angle χ and enables a fast and reliable tracing of shear stress fields σi3τ (i=1, 2).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 877, 1 January 2018, Pages 24-33
نویسندگان
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