Investigation of welding seals of martency steel steel type 03n18k9m5t after local thermocyclic treatment

Parshukov L.I., Gilmutdinov F.Z., Skupov A.A.
UDC
669.615-194.55
DOI
10.18577/2307-6046-2017-0-7-6-6
Article PDF (Russian) (500.88 KB)
How to cite
Parshukov L.I., Gilmutdinov F.Z., Skupov A.A. Investigation of welding seals of martency steel steel type 03n18k9m5t after local thermocyclic treatment // Proceedings of VIAM. 2017. No. 7. DOI: 10.18577/2307-6046-2017-0-7-6-6. URL: https://test.viam.ru/en/journal/2017/7/6
Keywords
maraging steel, electron-beam welding, residual stresses, weld seam, mechanical properties.
Abstract

Theoretical and experimental studies of the stress-strain, chemical and structural-phase state of martensitic aging steel after electron beam welding and subsequent heat treatment are carried out. It is established that the chemical, phase composition, structure, and stress-strain state of the martensitic-aging steel seam depend on the speed of electron beam welding. From the analysis of stressed states of the welded seam, it follows that with a higher welding speed, the residual stresses in the weld seam are greater. Thermocyclic treatment of the seam in a jammed state leads to its hardening and reduction of residual stresses.

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