The effect of phase transformations in the process of electrom-beam 3D-printing and post-built heat treatment on the peculiarities of plastic deformation and fracture of high nitrogen Cr-Mn steel | Izvestiya vuzov. Fizika. 2021. № 7. DOI: 10.17223/00213411/64/7/10

The effect of phase transformations in the process of electrom-beam 3D-printing and post-built heat treatment on the peculiarities of plastic deformation and fracture of high nitrogen Cr-Mn steel

We investigated the phase composition, plastic deformation and fracture micromechanisms of Fe-(25-26)Cr-(5-12)Mn-0.15C-0.55N (wt. %) high-nitrogen chromium-manganese steel. Obtained by the method of electron-beam 3D-printing (additive manufacturing) and subjected to a heat treatment (at a temperature of 1150°C following by quenching). To establish the effect of the electron-beam 3D-printing process on the phase composition, microstructure and mechanical properties of high-nitrogen steel, a comparison was made with the data for Fe-21Cr-22Mn-0.15C-0.53N austenitic steel (wt. %) obtained by traditional methods (casting and heat treatment) and used as a raw material for additive manufacturing. It was experimentally established that in the specimens obtained by additive manufacturing method, depletion of the steel composition by manganese in the electron-beam 3D-printing and post-built heat treatment contributes to the formation of a macroscopically and microscopically inhomogeneous two-phase structure. In the steel specimens, macroscopic regions of irregular shape with large ferrite grains or a two-phase austenite-ferrite structure (microscopic inhomogeneity) were observed. Despite the change in the concentration of the basic elements (chromium and manganese) in additive manufacturing, a high concentration of interstitial atoms (nitrogen and carbon) remains in steel. This contributes to the macroscopically heterogeneous distribution of interstitial atoms in the specimens - the formation of a supersaturated interstitial solid solution in the austenitic regions due to the low solubility of nitrogen and carbon in the ferrite regions. This inhomogeneous heterophase (ferrite-austenite) structure has high strength properties, good ductility and work hardening, which are close to those of the specimens of the initial high-nitrogen austenitic steel used as the raw material for additive manufacturing.

Download file

Counter downloads: 40

Keywords

nitrogen steel, additive technologies, electron-beam 3D-printing, austenite, ferrite, plastic deformation, fracture

Authors

Name	Organization	E-mail
Astafurova E.G.	Institute of Strength Physics and Materials Science of SB RAS	elena.g.astafurova@ispms.ru
Reunova K.A.	Institute of Strength Physics and Materials Science of SB RAS	reunova.ksenya@mail.ru
Astafurov S.V.	Institute of Strength Physics and Materials Science of SB RAS	svastafurov@gmail.com
Panchenko M.Yu.	Institute of Strength Physics and Materials Science of SB RAS	panchenko.marina4@gmail.com
Melnikov E.V.	Institute of Strength Physics and Materials Science of SB RAS	melnickow.jenya@yandex.ru
Moskvina V.A.	Institute of Strength Physics and Materials Science of SB RAS	valya_moskvina@mail.ru
Maier G.G.	Institute of Strength Physics and Materials Science of SB RAS	galinazg@yandex.ru
Rubtsov V.E.	Institute of Strength Physics and Materials Science of SB RAS	rvy@ispms.ru
Kolubaev E.A.	Institute of Strength Physics and Materials Science of SB RAS	eak@ispms.tsc.ru

Всего: 9

References

Frazier W.E. // Metal Additive Manufacturing: A Review. JMEPEG. - 2014. - V. 23(6). - P. 1917-1928.

Li N., Huang S., Zhang G., et al. // J. Mater. Sci. Tech. - 2019. - V. 35. - P. 249-269.

Ding D., Pan Z.I., Cuiuri D., and Li H. // Int. J. Adv. Manuf. Technol. - 2015. - V. 81. - P. 465-481.

Astafurova E.G., Panchenko M.Yu., Moskvina V. A., et al. // J. Mater. Sci. - 2020. - V. 55. - P. 9211-9224.

Tarasov S.Yu., Filippov A.V., Shamarin N.N., et al. // J. Alloys Compd. - 2019. - V. 803. - P. 364-370.@@Колубаев А.В., Тарасов С.Ю., Филиппов А.В. и др. // Изв. вузов. Физика. - 2018. - Т. 61. - № 8. - С. 110-116.

Melnikov E.V., Astafurova E.G., Astafurov S.V., et al. // Lett. Mater. - 2019. - V. 9(4). - P. 460-464.

Chen X., Li J., Cheng X., et al. // Mater. Sci. Eng. A. - 2018. - V. 715. - P. 307-314.

Bajaj P., Hariharan A., Kini A., et al. // Mater. Sci. Eng. A. - 2020. - V. 772. - P. 138633.

Zhang X., Zhou Q., Wang K., et al. // Mater. Des. - 2019. - V. 166. - P. 107611.

Panin V.E., Narkevich N.A., Durakov V.G., and Shulepov I.A. // Phys. Mesomech. - 2020. - V. 23(2). - P. 15-23.

Gavriljuk V.G. and Berns H. High Nitrogen Steels. - Berlin: Springer Verlag, 1999. - 378 p.

Yang D., Huang Y., Fan J., et al. // J. Manuf. Proc. - 2021. - V. 61. - P. 261-269.

Boes J., Röttger A., and Theisen W. // Additive Manuf. - 2020. - V. 32. - P. 101081.

Lass E.A., Zhang F., and Campbell C.E. // Metallurg. Mater. Trans. A. - 2020. - V. 51. - P. 2318- 2332.

Zhang X., Wang K., Zhou Q., et al. // Mater. Today Comm. - 2021. - V. 27. - P. 102263.

Reunova K.A., Astafurova E.G., Astafurov S.V., et al. // AIP Conf. Proc. - 2020. - V. 2310. - P. 020275.

Reunova K.A., Astafurova E.G., Astafurov S.V., et al. // AIP Conf. Proc. - 2020. - V. 2310. - P. 020276.

Astafurova E.G., Moskvina V.A., Maier G.G., et al. // Mater. Sci. Eng. A. - 2019. - V. 745. - P. 265-278.

Чумляков Ю.И., Киреева И.В., Захарова Е.Г. и др. // Изв. вузов. Физика. - 2002. - Т. 45. - № 3. - С. 61-72.

Wriedt H.A., Gokcen N.A., and Nafziger R.H. // Bull. Alloy Phase Diagrams. - 1987. - V. 8(4). - P. 355-377.

Lee S.J. and Lee Y.K. // Scripta Mater. - 2005. - V. 52. - P. 973-976.

Ping T., Gong J., Wang Y., et al. // Results Phys. - 2018. - V. 11. - P. 377-384.

$The effect of phase transformations in the process of electrom-beam 3D-printing and post-built heat treatment on the peculiarities of plastic deformation and fracture of high nitrogen Cr-Mn steel | Izvestiya vuzov. Fizika. 2021. № 7. DOI: 10.17223/00213411/64/7/10$