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Materials Science in Additive Manufacturing SLM of ODS steel: Process and properties

phenomenon occurs, leading to the dissipation of internal Funding
stresses. This resulted in a reduction in tensile strength and
an enhancement in ductility. In this instance, it is probable This work is supported by the Russian Science Foundation
that the impact of grain size on strength properties is less (No. 23-79-30004, https://rscf.ru/project/23-79-30004/).
significant than the impact of internal stresses. Therefore, Conflicts of interest
we propose carrying out only high-temperature tempering
for stress relief in future studies. The authors declare no conflicts of interest.

The presented results indicate the beneficial effects of Author contributions
the Y O strengthening. Thus, the process of fabrication Conceptualization: Vadim Sufiiarov
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of ferritic/martensitic ODS steels through SLM should
be further investigated. Further research is necessary to Data curation: Maria Zaitceva
enhance the material’s density and to conduct a thorough Funding acquisition: Anatoliy Popovich
examination of its resulting microstructure. Further studies Investigation: Maria Zaitceva, Artem Borisov
Project administration: Vadim Sufiiarov
employing Transmission electron microscopy, Electron Resources: Anatoliy Popovich
Backscatter Diffraction, and Small-angle X-ray scattering Supervision: Vadim Sufiiarov
are necessary to investigate the size and distribution of the Writing – original draft: Maria Zaitceva
Y O . It is anticipated that in the future, this approach may
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facilitate the creation of material that exhibits both high Writing – review & editing: Vadim Sufiiarov
strength and plastic properties. Ethics approval and consent to participate
4. Conclusion Not applicable.
In the present work, the ferritic/martensitic ODS steel Consent for publication
with 0.25 wt.% Y O was fabricated by SLM. The main
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conclusions of the study are summarized as follows: Not applicable.
(i) High material density, with a relative value of more Availability of data
than 98%, was achieved by adopting VED in the range
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of 80 – 110 J/mm and platform pre-heating. VED The data presented in this study are available on request
is identified as the most significant factor affecting from the corresponding author.
relative density in this work
(ii) After heat treatment, partial recrystallization of References
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morphology from elongated to more equiaxed forms. of oxide-reinforced FeCrAl matrix alloy manufactured
In addition, the grain size decreased as a result of by selective laser melting. Mater Today Commun.
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the process of structure formation was also observed, doi: 10.1016/j.mtcomm.2024.109226
resulting in the formation of elongated and narrow 2. Wang M, Sun H, Zou L, Zhang G, Li S, Zhou Z. Structural
grains evolution of oxide dispersion strengthened austenitic
(iii) At room temperature, reinforcement with 0.25 wt.% powders during mechanical alloying and subsequent
Y O resulted in UTS values (978 MPa) of as-built consolidation. Powder Technol. 2015;272:309-315.
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material close to those for the similar ferritic/ doi: 10.1016/j.powtec.2014.12.008
martensitic ODS steel plates and tubes fabricated by
traditional methods. The selected heat treatment mode 3. Little EA, Stow DA. Void-swelling in irons and ferritic steels:
led to a substantial decrease in strength properties II. An experimental survey of materials irradiated in a fast
(UTS = 697 MPa), whereas ductility was increased. reactor. J Nucl Mater. 1979;87(1):25-39.
However, the obtained material exhibited brittleness, doi: 10.1016/0022-3115(79)90123-5
indicating the necessity of employing a different heat 4. Shashanka R. Non-lubricated dry sliding wear behavior
treatment mode to ensure both enhanced strength of spark plasma sintered nano-structured stainless steel.
and plastic properties. J Mater Environ Sci. 2019;10(8):767-777.

Acknowledgments 5. Walker JC, Berggreen KM, Jones AR, Sutcliffe CJ.
Fabrication of Fe-Cr-Al oxide dispersion strengthened
None. PM2000 alloy using selective laser melting. Adv Eng Mater.

Volume 4 Issue 1 (2025) 9 doi: 10.36922/MSAM025060004