Journals →  Tsvetnye Metally →  2018 →  #12 →  Back

ArticleName Formation of crystallographic texture in samples with different geometry from VT1-0 alloy, obtained by selective laser melting powder method
DOI 10.17580/tsm.2018.12.10
ArticleAuthor Isaenkova M. G., Perlovich Yu. A., Yudin A.V., Rubanov A. E.

National Research Nuclear University MEPhI, Moscow, Russia:

M. G. Isaenkova, Professor, e-mail:
Yu. A. Perlovich, Professor
A. V. Yudin, Post-Graduate Student
A. E. Rubanov, Student, e-mail:


The regularities of crystallographic texture formation in samples with different geometry, produced by selective laser melting (SLM) of the titanium VT1-0 alloy powder were studied. The texture in massive samples (plate, bar and cube) is formed during the crystallization of the β-phase with the subsequent phase transformation β → α while maintaining the orientational ratio of Burgers. As the product grows along the Z axis, the initial axial texture of the lowest layers with the <111>β axis parallel to the Z direction changes to the texture with the <110>β || Zβ axis at a distance of 0.5 mm and then to the stable limited texture {001}<100>β for the remaining upper part of the product. In the upper layer of the product, the texture is scattered due to the termination of the SLM process. It is shown, that the formation of texture in the middle layers of the product is conditioned by the growth of columnar β-phase crystals, which are formed due to the thermal effect of the molten region on the underlying layers. The texture of the supporting structure does not affect the texture of the product itself. The layer-by-layer change in the mechanical properties of materials along the Z axis correlates with the variation of the crystallographic texture. The anisotropy of the hexagonal structure predetermines the substantial anisotropy of the properties of the product.
This work was carried out with the financial support of the State Program for Improving the Competitiveness of the National Research Nuclear University MEPhI (Agreement No. 02.a03.21.0005).

keywords Selective laser melting, powder, VT1-0 alloy, crystallographic texture, microhardness, structure, anisotropy

1. Yudin А. V., Beregovsky V. V., Tret’yakov E. V., Jhirnova J. E., Burmistrov M. A. Technological features manufacture samples of stainless steel 316L by Selective Laser Melting on the machine MeltMaster3D-550. IOP Conf. Series: Materials Science and Engineering. 2017. Vol. 218. pp. 12–22.
2. Meier C., Penny R. W., Zou Yu, Gibbs J. S., Hart A. J. Thermophysical Phenomena in Metal Additive Manufacturing by Selective Laser Melting: Fundamentals, Modeling, Simulation and Experimentation. Annual Review of Heat Transfer. 2017. Vol. 26. pp. 241–316.
3. Sufiiarov V. S., Popovich A. A., Borisov E. V., Polozov I. A. Selective laser melting of Ti – 6 Al – 4 V for gas turbine components manufacturing. Non-ferrous Metals. 2015. No. 2. p. 21. DOI: 24.10.17580/nfm.2015.02.04
4. Perlovich Y., Isaenkova M., Fesenko V. Modern methods of experimental construction of texture complete direct pole figures by using X-ray data. IOP Conf. Series: Materials Science and Engineering. 2016. Vol. 130. pp. 12–55.
5. MTEX Toolbox (v. 5.0.1) URL:
6. Golovin Yu. I. Nanoindentation and its capabilities. Moscow : Mashinostroenie, 2009. 312 p.
7. Oliver W. C., Pharr G. M. Measurement of hardness and elastic modulus bу instrumented indentation: Advances in understanding and refinements to methodology. J. Mater. Res. 2004. Vol. 19, No. 1. pp. 3–20.
8. Whittaker R., Fox K., Walke A. Texture variations in titanium alloys for aeroengine applications. Mater. Sci. Technol. 2010. Vol. 26, No. 6. pp. 676–684.
9. Murr L. E., Martinez E., Amato K. N., Gaytan S. M. Fabrication of Metal and Alloy Components by Additive Manufacturing: Examples of 3D Materials Science. Journal of Materials Research and Technology. 2012. Vol. 1. pp. 42–54.
10. Lee D. N., Kim K. H., Lee Y. G., Choi C. H. Factors determining crystal orientation of dendritic growth during solidification. Materials Chemistry and Physics. 1997. Vol. 47. pp. 154–158.
11. Moat R. J., Pinkerton A. J., Li L., Withers P. J., Preuss M. Crystallographic texture and microstructure of pulsed diode laser-deposited Waspaloy. Acta Materialia. 2009. Vol. 57. pp. 1220–1229.
12. Xin Zhou, Kailun Li, Dandan Zhang, Xihe Liu, Jing Ma, Wei Liu, Zhijian Shen. Textures formed in a CoCrMo alloy by selective laser melting. Journal of Alloys and Compounds. 2015. Vol. 631. pp. 153–164.
13. Thijs L., Verhaeghe F., Craeghs T., Humbeeck J. V., Kruth J.-P. A study of the microstructural evolution during selective laser melting of Ti – 6Al – 4V. Acta Materialia. 2010. Vol. 58, No. 9. pp. 3303–3312.
14. Yadroitseva I., Krakhmalev P., Johansson S., Smurov I. Energy input effect on morphology and microstructure of selective laser melting single track from metallic powder. Journal of Materials Processing Technology. 2013. Vol. 213. pp. 606–613.
15. Li Xuxiao, Tan Wenda. Numerical investigation of effects of nucleation mechanisms on grain structure in metal additive manufacturing. Computational Materials Science. 2018. Vol. 153. pp. 159–169.

Language of full-text russian
Full content Buy