Research of mechanical properties of the sintered samples from electro-erosion cobalt-chromium powder

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    The main requirement for powders for additive 3d technologies is the spherical shape of the particles. Such particles are most compactly packed into a certain volume and ensure the "fluidity" of the powder composition in the supply systems of the material with minimal resistance. Proceeding from the peculiarities of the methods for the production of spherical powders with the aim of obtaining spherical granules of regulated granularity, the technology of electroerosive dispersion is proposed, which is characterized by relatively low energy costs and ecological purity of the process. Based on the results of the studies aimed at investigating the mechanical properties of sintered samples from cobalt-chrome powders obtained for additive technologies by electroerosive dispersion, it was established that the average Vickers hardness of sintered samples is 14,63 Gpa; the porosity of the sintered samples is 6,15%.


  • Keywords


    Cobalt-Chromium Alloy;Electroerosive Dispersion; Powder; Spark Plasma Sintering; Sintered Sample; Hardness; Porosity.

  • References


      [1] Song B., Dong S., Zhang B. et al. Effects of processing parameters on microstructure and mechanical property of selective laser melted Ti6Al4V. Materials & Design, 2012, Vol. 35, pp. 120–125.https://doi.org/10.1016/j.matdes.2011.09.051.

      [2] Song B., Dong S., Coddet P. et al. Fabrication and microstructure characterization of selective laser melted FeAl intermetallic parts. Surface and Coatings Technology, 2012, Vol. 206, pp. 4704–4709. https://doi.org/10.1016/j.surfcoat.2012.05.072.

      [3] Biamino S., Penna A., Ackelid U et al. Electron beam melting of Ti–48Al–2Cr–2Nb alloy: microstructure and mechanical properties investigation. Intermetallics, 2011, Vol. 19, pp. 776–781.https://doi.org/10.1016/j.intermet.2010.11.017.

      [4] Safdar A., He H.Z., Wei L.Y., Snis A. et al. Effect of process parameters settings and thickness on surface roughness of EBM produced Ti–6Al–4V // Rapid Prototyping Journal, 2012, Vol. 18 (5), pp.401–408.https://doi.org/10.1108/13552541211250391.

      [5] Loeber L., Biamino S., Ackelid U. et al. Comparison of Selective Laser and Electron Beam Melted Titanium Aluminides. Conference paper of 22nd International symposium “Solid freeform fabrication proceedings”, University of Texas, Austin, 2011, pp. 547-556;

      [6] Gu D.D., Meiners W., Wissenbach K., Poprawe R. Laser additive manufacturing of metallic components: materials, processes and mechanisms. International Materials Reviews, 2012, Vol. 57 (3), pp. 133-164;https://doi.org/10.1179/1743280411Y.0000000014.

      [7] Wang Z., Guana K., Gaoa M. The microstructure and mechanical properties of deposited-IN718 by selective laser melting. Journal of Alloys and Compounds, 2012, Vol. 513, pp. 518–523.https://doi.org/10.1016/j.jallcom.2011.10.107.

      [8] Safdar A., Wei L.Y., Snis A., Lai Z. Evaluation of microstructural developmentin electron beam melted Ti–6Al–4V. Materials Characterization, 2012, Vol. 65, pp. 8–15.https://doi.org/10.1016/j.matchar.2011.12.008.

      [9] Ageev, E.V. Electroerosive Powder Obtained from Alloy VK8 Waste into Butanol / E.V. Ageeva, A.Yu. Altukhov , S.V. Khardikov , S.S. Gulidin , A.N. Novikov // Journal of nano- and electronic physics. – Vol. 7, No 4, Part 2, 2015 – P. 04080(3).

      [10] Ageevа, E.V. X-ray Analisis of the Powder of Micro- and Nanometer Fractions, Obtained from Wastes of Alloy T15K6 in Aqueous Medium / E.V. Ageeva, E.V. Ageev , S.V. Pikalov , E.A. Vorobiev , A.N. Novikov // Journal of nano- and electronic physics. – Vol. 7, No 4, Part 2, 2015 – P. 04058(2).

      [11] Ageevа, E.V. Studing Tungsten-containing Electroerosion Powders and Alloys Synthesized from Them / E.V. Ageevа, E.V. Ageev, V.Yu. Karpenko, A.S. Osminina // Journal of nano- and electronic physics. – 2014. – Vol. 3. – P. 03049-1– 03049-3.

      [12] Ageev, E.V. Investigation into the properties of electroerosive powders and hard alloy fabricated from them by isostatic pressing and sintering / Ageev E.V., Ageeva E.V., Latypov R.A. // Russian Journal of Non-Ferrous Metals. 2015. Т. 56. № 1. С. 52-62.


 

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Article ID: 9895
 
DOI: 10.14419/ijet.v7i2.2.9895




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