About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Surface Engineering V
|
Presentation Title |
N-8: Microstructural Changes of Electron Beam Treated AISI 316L with the Combination of Computation of Thermal and Mechanical Fields |
Author(s) |
Crtomir Donik, Irena Paulin, Federica Rimoldi, Matjaž Godec, Massimiliano Bestetti |
On-Site Speaker (Planned) |
Crtomir Donik |
Abstract Scope |
We investigated effects of low energy, high current electron beam (LEHCEB) irradiation on the surface modification of AISI 316L, with both experimental and modelling.
AISI 316L was treated with LEHCEB in different operational settings, varying the accelerating voltage of electron beam and number of pulses. A layer of α’-martensite was detected on surface of samples via X-ray diffraction technique and EBSD. Prepared cross-sections corroborated martensitic transformation to be deformation-induced due to the peculiar thermal stress induced in material by electron beam irradiation. With these results, we could show mean of LEHCEB treatments as an alternative route to provide surface quenching.
Intense non-equilibrium thermal and mechanical fields are known to develop during electron beam EB treatments were modelled in COMSOL. Simulation data were related to experimental results to propose a preliminary modelling process for the transformation and evolution of martensite in steel due to strains generated by irradiation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Surface Modification and Coatings, Characterization, Process Technology |