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Researching structire and properties of metal-powdered compositions made of corrosion-resistant steels obtained by gas atomization of alloy and intended for detail production by selective laser alloying

https://doi.org/10.22349/1994-6716-2018-96-4-97-106

Abstract

Investigations of the microstructure and technological properties (such as flow ability, bulk density, tapped density etc.) of novel Fe–Cr–Ni, Fe–Cr–Ni–Mo and Fe–Cr–Ni–Co–Mo stainless steel metal powders were carried on. These powders are intended for use in additive manufacturing processes. Morphology of the powders was researched and the dendritic parameter was estimated for powder particles with various sizes (diameters). Dependence of gas impurities contamination on particles size was determined. Complex of these investigations allows confirming high quality of metal powders for additive manufacturing processes. In particular, minimal value of flow ability was determined as 14 sec while standard requirements for additive technologies are within 20 sec.

About the Authors

D. I. Sukhov
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation

Cand Sc. (Eng)

17, Radio St, 105005 Moscow



S. V. Nerush
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation
17, Radio St, 105005 Moscow


M. A. Yurkov
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation

 Cand Sc (Eng)

17, Radio St, 105005 Moscow



G. V. Amirdzhanyan
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation
17, Radio St, 105005 Moscow


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Review

For citations:


Sukhov D.I., Nerush S.V., Yurkov M.A., Amirdzhanyan G.V. Researching structire and properties of metal-powdered compositions made of corrosion-resistant steels obtained by gas atomization of alloy and intended for detail production by selective laser alloying. Voprosy Materialovedeniya. 2018;(4(96)):97-106. (In Russ.) https://doi.org/10.22349/1994-6716-2018-96-4-97-106

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ISSN 1994-6716 (Print)