Formation of deformation induced martensite in fatigued 316L steels manufactured by selective laser melting (SLM)

0570429 - ÚFM 2025 RIV NL eng C - Conference Paper (international conference)
Man, Jiří - Blinn, B. - Šulák, Ivo - Kuběna, Ivo - Smaga, M. - Chlup, Zdeněk - Kruml, Tomáš - Beck, T. - Polák, Jaroslav
Formation of deformation induced martensite in fatigued 316L steels manufactured by selective laser melting (SLM).
Procedia Structural Integrity. Vol. 43. Amsterdam: Elsevier B. V., 2023 - (Pokluda, J.; Šandera, P.), s. 203-208. ISSN 2452-3216.
[MSMF10 - International Conference on Materials Structure and Micromechanics of Fracture /10./. Brno (CZ), 12.09.2022-14.09.2022]
EU Projects: European Commission(XE) 857124 - Horizont 2020
Institutional support: RVO:68081723
Keywords : Selective laser melting (SLM) * 316L stainless steel * fatigue * deformation induced martensite * cellular dislocation substructure
OECD category: Materials engineering

Destabilization of originally fully austenitic structure and formation of DIM (deformation induced martensite) were studied in SLMed 316L steels fabricated using different manufacturing systems and fatigued at room temperature in as-built state in two laboratories (TU Kaiserslautern and IPM Brno). Several microscopic techniques were adopted to reveal the distribution and morphology of DIM in the volume of fatigued steels. Results of microstructure investigations are confronted with the ferritescope measurements taken at different locations of fatigued specimens. Some factors which may impact the DIM formation in fatigued SLMed 316L steel are discussed.


Permanent Link: https://hdl.handle.net/11104/0341956