Herr Hamed Shokri

Materials Science and Additive Manufacturing

Team

 https://mam.uni-wuppertal.de/de/team/detail/shokri/

Biografie

Kurzbiographie:

I am an accomplished materials engineer and researcher, currently serving as a Research Assistant (PhD student) at Wuppertal University in Chair of Materials Science and Additive Manufacturing, with Prof. Dr. habil. Bilal Gökce as my supervisor. With extensive experience in advanced manufacturing techniques such as Laser Powder Bed Fusion and Electron Beam Powder Bed Fusion, I have made significant contributions to the field of materials science. I have held key positions including Materials Engineer and Quality Specialist at PSP Inspection in the Netherlands and Metallography Laboratory Supervisor at Razi Metallurgical Research Center in Tehran. I hold a Master’s degree from Amirkabir University of Technology, where I was recognized for my academic excellence with top honors and awards. My research interests include additive manufacturing, microstructure analysis, and materials characterization.

Titel und Abstract des Dissertationsprojekts:

Ni-Mn-Sn Heusler alloys offer a large magnetocaloric effect (MCE), beneficial Curie temperatures and high mechanical stability, all without involving scarce elements, making them exciting candidates for solid-state refrigeration. Additive manufacturing allows for complex design of this brittle material. In particular Electron Beam Powder Bed Fusion (PBF-EB) offers minimized oxidation (vacuum) and low temperature gradients which are beneficial to prevent intergranular cracking. One foreseeable major challenge is evaporation. The main objective of this project is to reveal key influences of the PBF-EB process on the magnetocaloric properties of Ni-Mn-Sn Heusler alloys, eventually leading to multi-objective optimization. Further scientific goals are:

1. Understanding the impact of solidification conditions and heating cycles in solid-state on microstructure evolution for varied elemental compositions
2. Derivation of appropriate post-processing strategies
3. Correlation of process conditions and microstructural characteristics with magnetic and mechanical properties
4. Building a 3D free from magnet

Neuigkeiten

Vortragstätigkeit:

 Advanced Topics in Additive Manufacturing (WiSe 2023)

Publikationen:

• SK Rittinghaus, H Shokri, N Shkodich, E Bruder, M Farle, B Gökce, Comparative Insights into Microstructure and Magnetism of Ni-Mn-Sn Heusler Alloys Manufactured by Electron Beam and Laser Beam Powder Bed Fusion, Additive Manufacturing Letters, 2023
• T Özel, H Shokri, R Loizeau, A review on wire-fed directed energy deposition based metal additive manufacturing, Journal of Manufacturing and Materials Processing, 2023
• T Özel, H Shokri, H Hosseinzadeh, Physics-Based Microstructure Modeling for Grain Tailoring and Refinement in Wire Arc Additively Manufactured Ti-6Al-4V Alloy, ASME International Mechanical Engineering Congress, 2022
• M Attarian, S Molaei, H Shokri, K Norouzi, Failure and metallurgical defects analysis of IN-738LC gas turbine blades, Engineering Failure Analysis, 2021

Sonstige wissenschaftliche Aktivitäten/Mitgliedschaften:

tba.