Research of fine-dispersed metal powder of the heat resisting alloy of the EP648-VI brand for laser metal deposition (LMD) and also the assessment quality of welding of powder material on the nickel basis on working blades THP

Nerush S.V., Evgenov A.G.
UDC
669.14:621.833
DOI
10.18577/2307-6046-2014-0-3-1-1
Article PDF (Russian) (1.13 MB)
How to cite
Nerush S.V., Evgenov A.G. Research of fine-dispersed metal powder of the heat resisting alloy of the EP648-VI brand for laser metal deposition (LMD) and also the assessment quality of welding of powder material on the nickel basis on working blades THP // Proceedings of VIAM. 2014. No. 3. DOI: 10.18577/2307-6046-2014-0-3-1-1. URL: https://test.viam.ru/en/journal/2014/3/1
Abstract

Fine-dispersed metal powders of the heat resisting alloy brand EP648-VI for laser metal deposition (LMD), obtained by method of atomization at a facility HERMIGA 10/100 VI are investigated. It is shown, that the obtained fine-dispersed powders when spraying by cold and hot gas have low oxygen content, the spherical form, the expressed dendritic structure in all range of the granulometric distribution. Adaptive laser metal deposition with application metal powder of the heat resisting alloy EP648-VI of the granulometric distribution 40–80 microns on working off technology of recovery of geometry extreme combs on the bandage shelf of working blades of the second step guarantees high quality of welding material (availability of defects of typemicrocracks, lack of penetrations is not revealed).

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