Residual stresses in LENS® components using neutron diffraction and contour method
作者： P. Rangaswamy , M.L. Griffith , M.B. Prime , T.M. Holden , R.B. Rogge
DOI: 10.1016/J.MSEA.2005.02.019
关键词: Laser engineered net shaping 、 Engineering drawing 、 Cylinder stress 、 Context (language use) 、 Composite material 、 Neutron diffraction 、 Cracking 、 Deformation (meteorology) 、 Inconel 、 Residual stress 、 Materials science
摘要: During manufacturing of components by laser engineered net shaping (LENS®), a solid freeform fabrication process, the introduction residual stresses causes deformation or in worst case, cracking. The origin is attributed to thermal transients encountered during solidification. In absence reliable predictive models for stresses, measurements are necessary. Residual were measured LENS® samples 316 stainless steel and Inconel 718 having simple geometrical shapes both neutron diffraction contour methods. results two methods compared discussed context growth direction process. Surprisingly, practically uni-axial, with high direction.
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