Laboratoire de Mécanique des Solides (LMS), Ecole Polytechnique, Institut Polytechnique de Paris, CNRS UMR 7649, France
Damien Artieres
Biography
Damien Artières is a postdoctoral researcher at the Solid Mechanics Laboratory of École Polytechnique. His work focuses on fatigue properties and microstructure of 316L structures repaired using Directed Enegy Deposition and ColdSpray. He defended his thesis on the topic of additive manufacturing using wire deposition in 2025, carried out in collaboration between CEA Saclay and the Materials Center at Mines Paris
Conferences
Room |
Date |
Hour |
Subject |
|---|---|---|---|
| Room 6 |
26-03-2026 |
11:55 am – 12:15 pm |
71 Fatigue resistance of 316L stainless steel cylindrical structures repaired using Cold Spray technology |
Conferences Details
71 Fatigue resistance of 316L stainless steel cylindrical structures repaired using Cold Spray technology
Fatigue resistance of 316L stainless steel specimens repaired using the Cold Spray process was determined using a staircase procedure. Low-porosity reparations were achieved with a hardness of around 400 HV0.5. The estimated fatigue limit at 2,000,000 cycles was similar to that of wrought 316L steel, around 260 MPa. Heat treatments were also conducted, but significantly reduced the fatigue limit to around 160 MPa due to microstructural evolution of the substrate. Furthermore, this study compared the fatigue limits determined using the staircase procedure with those estimated using self-heating, highlighting comparable estimations.
Keywords: reparation, Cold Spray, heat treatments, fatigue resistance, microstructural characterization
