Destruction of two-phase titanium alloys in sea water

Orlov M.R., Naprienko S.A.
UDC
620.1:669.295
DOI
10.18577/2307-6046-2017-0-1-10-10
Article PDF (Russian) (1.09 MB)
How to cite
Orlov M.R., Naprienko S.A. Destruction of two-phase titanium alloys in sea water // Proceedings of VIAM. 2017. No. 1. DOI: 10.18577/2307-6046-2017-0-1-10-10. URL: https://test.viam.ru/en/journal/2017/1/10
Keywords
two-phase titanium alloys, corrosion cracking, delayed fracture under load, corrosive environment, sea water, stress intensity factor.
Abstract

Features of static and low-cyclic fatigue fracture of two-phase titanium alloys VT3-1, VT6, VBT8, VT9, VТ18U and VТ22 in sea water and air were investigated by scanning electron microscopy. Threshold values of stress intensity factors in the conditions of static and low-cyclic loading corresponding to the beginning of crack propagation were determined by the mechanism of corrosion cracking. Work is performed within implementation of «The strategic directions of development of materials and technologies of their processing for the period till 2030» [1]: – direction 2. «Fundamental oriented researches, qualification of materials, non-destructive testing»; – direction 18. «Environmental test for providing protection of materials, structures and complex technical systems against corrosion, aging and biodamages».

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