scanning-3DXRD measurement of crack tip orientation-strain states to elucidate ductile fracture mechanisms in 3D printed steels
收藏ESRF Portal2028-01-01 更新2026-04-23 收录
下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-2169731953
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资源简介：
The proposed research aims to characterize the process of plastic deformation and crack tip blunting in polycrystalline alloys made by laser-based additive manufacturing (LAM) using a combination of 3D imaging techniques. Fracture toughness in LAM alloys can be as much as 70% lower than conventional metals, however a mechanistic basis for these behaviors remains unclear. Both LAM and wrought stainless steel 316L (SS316L) polycrystals will be studied by in-situ scanning X-ray diffraction (s3DXRD) and phase contrast tomography (PCT) using the nanoscope station at ID11. The experimental data will give access to the temporal and spatial evolution of crack tip geometry and orientation-strain states to assess the influence of local grain morphology on plastic deformation and crack tip blunting throughout the 3D microstructure during in-situ crack growth experiments of notched samples.
提供机构：
ENSCM, Hétérochimie Moléculaire & Macromoléculaire, 8, rue de l Ecole Normale, 34296 Montpellier Cedex 05, France; CNRS UMR 7633, Ecole des Mines de Paris, Centre des Matériaux, Paristech Bp 87, 91003 Evry Cedex, France; University of Michigan, Mechanical Engineering, 2350 Hayward, 48109, Ann arbor, USA; University of Michigan, Mechanical Engineering, 2350 Hayward, 48109 Ann Arbor, Usa
创建时间：
2028-01-01
