Alternation of structure of selective laser melted aluminum alloy AK9ch during heat treatment

Ryabov D.K., Zaysev D.V., Dynin N.V., Ivanova A.O.
UDC
669.715
DOI
10.18577/2307-6046-2016-0-9-3-3
Article PDF (Russian) (1.19 MB)
How to cite
Ryabov D.K., Zaysev D.V., Dynin N.V., Ivanova A.O. Alternation of structure of selective laser melted aluminum alloy AK9ch during heat treatment // Proceedings of VIAM. 2016. No. 9. DOI: 10.18577/2307-6046-2016-0-9-3-3. URL: https://test.viam.ru/en/journal/2016/9/3
Keywords
AK9ch alloy, SLM, heat treatment, additive manufacturing.
Abstract

Development of 3D-printing technologies made it possible to prepare half-finished product and components from metal powders including those from aluminum alloys. These technologies allow procuring complex products with high improved material efficiency. However the high crystallization speed during selective laser sintering causes manufacture of structures that are not typical for classical casting technologies. The research results of the microstructure changes of AK9ch material during various kinds of heat treatment (annealing, solution treatment), the results of the optical microscopy and TEM studies are introduced. The work is carried out under the realization of integrated research area 10.3. «Technologies of atomization for producing high quality metallic powders for additive manufacturing and powders for brazing» («The strategic directions of development of materials and technologies for their processing for the period till 2030»)

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