Express method for prediction of long-term strength and creep resistance of high-temperature titanium-based alloys


I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Electron Microscopy and Strength of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2018, #24


Express method for investigation the mechanical behavior of titanium alloys at elevated temperatures is Cassette device for three-point bending simplifies test procedure. Standard mechanical characteristics of alloys may be determined for a short time. Curves of hardening used for analyzing of temperature and structural sensitivity of strengthening. Strain - rate cycling tests were applied for investigation of the activation parameters and predict the mechanical properties of the materials studied at low strain rates. The possibilities of the method are demonstrated on high temperature investigation The eutectic Ti―Si―B titanium alloys and the nonmetallic alloys of the titanium―niobium―molybdenum system were tested by express. three-point bending method The results of experiments demonstrate a good agreement with the mechanical characteristics obtained by standard test schemes. Full text download