About parameters of Paris equation at fatigue crack growth rate tests of heat-resistant titanium alloys

Gorbovets M.A., Nochovnaya N.A.
Gorbovets M.A., Nochovnaya N.A. About parameters of Paris equation at fatigue crack growth rate tests of heat-resistant titanium alloys // Proceedings of VIAM. 2016. No. 4. DOI: 10.18577/2307-6046-2016-0-4-2-2. URL: https://test.viam.ru/en/journal/2016/4/2
Abstract

Fatigue crack growth rate (FCGR) is a necessary component in the complex of mechanical properties characterizing reliability of materials for aviation engineering. Research of FCGR of heat-resistant titanium alloys VT8-1, VT41, VIT1 is conducted at room and working temperatures, two cycle ratios (0,1 and 0,5). It is established that parameters of Paris equation (C and n) for the studied heat-resistant titanium alloys are not independent and are approximated by the general direct line in «lgC–lgn» coordinates. Investigation is executed within implementation of the complex scientific direction 2.2. «Qualification and researches of materials» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)

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