2D characterization at submicron scale of crack propagation of 17-4PH parts produced by Atomic Diffusion Additive Manufacturing (ADAM) process
نویسندگان
چکیده
In this study, a Surface Mechanical Attrition Treatment (SMAT) is applied to 17-4PH single edge notched tension (SENT) sample made by Atomic Diffusion Additive Manufacturing (ADAM). Grating of gold nanoparticles allowing multiscale characterizations deposited on the surface specimen electron beam lithography. In-situ tensile test carried out and images are recorded. The crack propagation followed local parameters influencing analyzed. evolutions at microstructure scale compared with macroscopic behavior specimen.
منابع مشابه
A Novel Extrusion-based Additive Manufacturing Process for Ceramic Parts
An extrusion-based additive manufacturing process, called the Ceramic On-Demand Extrusion (CODE) process, for producing three-dimensional ceramic components with near theoretical density is introduced in this paper. In this process, an aqueous paste of ceramic particles with a very low binder content (<1 vol%) is extruded through a moving nozzle at room temperature. After a layer is deposited, ...
متن کاملFast crack propagation by surface diffusion.
We present a continuum theory which describes the fast growth of a crack by surface diffusion. This mechanism overcomes the usual cusp singularity by a self-consistent selection of the crack tip radius. It predicts the saturation of the steady state crack velocity appreciably below the Rayleigh speed and tip blunting. Furthermore, it includes the possibility of a tip splitting instability for h...
متن کاملResidual Stress in Metal Parts Produced by Powder-Bed Additive Manufacturing Processes
In this study, residual stresses from the electron beam additive manufacturing (EBAM) and selective laser melting (SLM) processes, due to repeated thermal cycles, were investigated. Residual stresses play a crucial role in part performance, and thus, it is critical to evaluate the process-induced residual stresses in AM parts. Ti-6Al-4V and Inconel 718 parts produced by EBAM and SLM, respective...
متن کاملAdditive Manufacturing: Reproducibility of Metallic Parts
The present study deals with the properties of five different metals/alloys (Al-12Si, Cu-10Sn and 316L—face centered cubic structure, CoCrMo and commercially pure Ti (CP-Ti)—hexagonal closed packed structure) fabricated by selective laser melting. The room temperature tensile properties of Al-12Si samples show good consistency in results within the experimental errors. Similar reproducible resu...
متن کاملInvestigating the microstructure and hardness of 17-4PH steel and Stellite cladded by direct laser deposition process on 17-4PH steel substrate
The purpose of this research is to laser cladding of stellite6 and stainless steel 17-4PH powders on the substrate of stainless steel 17-4PH, and investigate its solidification microstructure. The results showed that the microstructure of the stellite6 cladding has a cobalt solid solution ground phase with an FCC structure and Cr7C3 and Cr23C6 carbides. Also, the values of the primary dendrit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Procedia structural integrity
سال: 2021
ISSN: ['2452-3216']
DOI: https://doi.org/10.1016/j.prostr.2021.12.003