Rheological Properties and Microstructure of PH1 Stainless Steel Produced by Selective Laser Melting

Abstract:

The present study is focused on rheological properties of PH1 stainless steel, produced by selective laser melting (SLM), at temperatures of hot deformation, with the aim to investigate the dependence of strain resistance on temperature and strain degree. The tests of cylindrical specimens, made of PH1 stainless steel, were carried out using a cam plastometer in temperature range 700 – 1200 °C at a strain rate ξ equal to 1 s^-1 up to strain degree e equal to 0.8 – 1.2. The paper presents the results of investigation of initial microstructure, microhardness measurement and flow curves of PH1 steel, produced by SLM method. The flow curves of PH1 steel produced by SLM can be used in the development of new methods of manufacturing the metallic parts by additive technologies with the use of deformation post-processing.

• Periodical: Materials Science Forum (Volume 989)
• Pages: 811-815
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.989.811
• Online since: May 2020
• Authors: Sergei Gladkovsky, Denis Rinatovich Salikhyanov*, Vladimir P. Volkov, Yurij A. Avraamov, Valeriya E. Veselova
• Keywords: Additive Manufacturing, Hot Compression Tests, Microstructure, Selective Laser Melting, Stainless Steel, Strain Resistance

References

[1] Y. Zhang, L. Wu, X. Guo et al., Additive Manufacturing of Metallic Materials: A review, JMEPEG. 27 (2018) 1-13.

[2] D. Herzog, V. Seyda, E. Wycisk, C. Emmelmann, Additive manufacturing of metals, Acta Materialia. 117 (2016) 371-392.

DOI: 10.1016/j.actamat.2016.07.019

[3] R.M. Mahamood, E.T. Akinlabi, M. Shukla and S. Pityana, Revolutionary additive manufacturing: an overview, Lasers in Engineering. 27 (2014) 161-178.

[4] B. AlMangour, J.-M. Yang, Understanding the deformation behavior of 17-4 precipitate hardenable stainless steel produced by direct metal laser sintering using micropillar compression and TEM, Int. J. Adv. Manuf. Technol. 90 (2017) 119-126.

DOI: 10.1007/s00170-016-9367-9

[5] K.V. Wong, A. Hernandez, A review of additive manufacturing, ISRN Mech. Eng. (2012) 1-10.

[6] D.D. Gu, W. Meiners, K. Wissenbach and R. Poprawe, Laser additive manufacturing of metallic components: materials, processes and mechanisms, International Materials Reviews. 57:3 (2012) 133-164.

DOI: 10.1179/1743280411y.0000000014

[7] S. Pal, H.R. Tiyyagura, I. Drstvensek, Ch.S. Kumar, The effect of post-processing and machining process parameters on properties of Stainless Steel PH1 product produced by Direct Metal Laser Sintering, Procedia Engineering. 149 (2016) 359-365.

DOI: 10.1016/j.proeng.2016.06.679

[8] U.K. Viswanathan, S. Banerjee and R. Krishnan, Effects of Aging on the Microstructure of 17-4 PH Stainless Steel, Materials Science and Engineering A. 104 (1988) 181-189.

DOI: 10.1016/0025-5416(88)90420-x

[9] S. Sarkar, Ch.S. Kumar, A.K. Nath, Effect of different heat treatments on mechanical properties of laser sintered additive manufactured parts, Proceedings of the ASME 2017 12th International Manufacturing Science and Engineering Conference. (2017) 1-7.

DOI: 10.1115/msec2017-2769

[10] A. Kreitcberg, V. Brailovski, S. Turenne et al. Influence of thermo- and HIP treatments on the microstructure and mechanical properties of IN625 alloy parts produced by selective laser melting: A comparative study, Materials Science Forum. 879 (2017) 1008-1013.

DOI: 10.4028/www.scientific.net/msf.879.1008

[11] J. Li, C. Yuan, J.T. Guo et al. Effect of hot isostatic pressing on the microstructure of K417G cast turbine discs, Materials Science Forum. 816 (2015) 557-561.

DOI: 10.4028/www.scientific.net/msf.816.557

[12] P.A. Colegrove, F. Martina, M.J. Roy et al. High pressure interpass rolling of Wire + Arc Additively Manufactured titanium components, Advanced Materials Research. 996 (2014) 694-700.

DOI: 10.4028/www.scientific.net/amr.996.694

[13] W.J. Sames, F.A. List, S. Pannala et al. The metallurgy and processing science of metal additive manufacturing, International Materials Reviews. 61:5 (2016) 315-360.

DOI: 10.1080/09506608.2015.1116649

[14] R.J. Friel, R. Harris, Ultrasonic additive manufacturing A hybrid production process for novel functional products, Procedia CIRP. 6 (2013) 35-40.

DOI: 10.1016/j.procir.2013.03.004

[15] D. Gu, Y. Shen, Processing conditions and microstructural features of porous 316L stainless steel components by DMLS, Applied Surface Science. 255 (2008) 1880-1887.

DOI: 10.1016/j.apsusc.2008.06.118

[16] L. Hao, S. Dadbakhsh, O. Seaman, M. Felstead, Selective laser melting of a stainless steel and hydroxyapatite composite for load-bearing implant development, Journal of Materials Processing Technology. 209 (2009) 5793-5801.

DOI: 10.1016/j.jmatprotec.2009.06.012

[17] A.I. Potapov, S.V. Gladkovsky, E.A. Kokovikhin et al. Opredelenie soprotivleniya plasticheskoy deformacii metallicheskih materialov na avtomatizirovannom plastometricheskom komplekse (Determination of plastic deformation resistance of metallic materials on the automated plastometric complex), Diagnostics, Resource and Mechanics of Materials and Structures. 2 (2015) 24-43 (in Russian).

[18] Yu.N. Loginov, S.V. Gladkovskii, A.I. Potapov et al. Investigation into the Deformation Resistance of Polycrystalline Iridium, Russian Journal of Non-Ferrous Metals. 56:5 (2015) 532-539.

DOI: 10.3103/s1067821215050090

[19] S.V. Gladkovskii, A.I. Potapov, and D.R. Salikhyanov, Rheological Properties and Substantiation of Hot Rolling Regimes of Low- and Medium Carbon Structural Steels, Solid State Phenomena. 284 (2018) 653-661.

DOI: 10.4028/www.scientific.net/ssp.284.653

[20] P.I. Polukhin, G.Ya. Gun, A.M. Galkin, Strain resistance of metals and alloys, Metallurgija, Moscow, 1983 (in Russian).