Institute of Physics of Materials AS CR, v. v. i. > Projects > Effect of the microstructure on the fatigue in highly anisotropic stainless steel fabricated by selective laser melting

Effect of the microstructure on the fatigue in highly anisotropic stainless steel fabricated by selective laser melting

InvestigatorIng. Miroslav Šmíd, Ph.D.
Number of Project19-25591Y
AgencyGrantová agentura České republiky
Duration2019-01-01 - 2021-12-31

This project focuses on fatigue resistance of metastable austenitic steels with highly anisotropic properties made by selective laser melting (SLM). This technique can produce materials with very complex geometries but also with textured microstructure. That brings intriguing chance to produce the materials possessing directionally dependent mechanical properties. Furthermore, recent studies show dependency of martensitic transformation on grain orientation to the loading axis. The project aims to study a SLM made steel with strong texture influencing significantly the martensitic transformation. The fatigue life, alongside with active deformation mechanisms and induced martensitic transformation, will be studied in detail by advanced electron microscopy techniques. The neutron diffraction measurements will be pursued to quantify the SLM process-introduced residual stresses which need to be considered for the description of fatigue crack kinetics. The project will acquire unique multi-method insight and novel findings valuable for additive manufacturing community.


Santonocito D., Fintová S., Di Cocco V., Iacoviello F., Risitano G., D'Andrea D.: Comparison on mechanical behavior and microstructural features between traditional and AM AISI 316L. Fatigue Fract. Eng. Mater. Struct. 46 (2023) 379-395

Šmíd M., Koutný D., Neumannová K., Chlup Z., Náhlík L., Jambor M.: Cyclic behaviour and microstructural evolution of metastable austenitic stainless steel 304L produced by laser powder bed fusion. Additive Manufacturing 68 (2023) 103503

Kuběna I., Fintová S., Jambor M., Šmíd M.: TKD/EBSD and TEM analysis of microstructural changes ongoing in AISI 304L steel exposed to the cyclic loading. Mater. Sci. Eng. A 872 (2023) 144943

Jambor M., Vojtek T., Pokorný P., Koutný D., Náhlík L., Hutař P., Šmíd M.: Anomalous fatigue crack propagation behavior in near-threshold region of L-PBF prepared austenitic stainless steel. Mater. Sci. Eng. A 872 (2023) 144982


Slávik O., Vojtek T., Poczklán L., Tinoco Navarro H., Kruml T., Hutař P., Šmíd M.: Improved description of low-cycle fatigue behaviour of 316L steel under axial, torsional and combined loading using plastic J-integral. Theor. Appl. Fract. Mech. 118 (2022) 103212


Trávníček L., Kuběna I., Mazánová V., Vojtek T., Polák J., Hutař P., Šmíd M.: Advantageous Description of Short Fatigue Crack Growth Rates in Austenitic Stainless Steels with Distinct Properties. Metals 11 (2021) 475

Šmíd M., Kuběna I., Jambor M., Fintová S.: Effect of solution annealing on low cycle fatigue of 304L stainless steel. Mater. Sci. Eng. A 824 (2021) 141807

Jambor M., Vojtek T., Pokorný P., Šmíd M.: Effect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steel. Materials 14 (2021) 1331