Investigation of structural and phase transformations in metastable β-titanium alloys and effect of cooling rate from homogenization temperature on structure and properties of VT47 alloy

Part 2
Kablov E.N., Nochovnaya N.A., Shiryaev A.A., Davydova E.A.
UDC
669.295
DOI
10.18577/2307-6046-2020-0-8-11-19
Article PDF (Russian) (1.02 MB)
How to cite
Kablov E.N., Nochovnaya N.A., Shiryaev A.A., Davydova E.A. Investigation of structural and phase transformations in metastable β-titanium alloys and effect of cooling rate from homogenization temperature on structure and properties of VT47 alloy. Part 2 // Proceedings of VIAM. 2020. No. 8. DOI: 10.18577/2307-6046-2020-0-8-11-19. URL: https://test.viam.ru/en/journal/2020/8/2
Keywords
phase transformations, microstructure, VT47 alloy, hardness, cooling rate.
Abstract

According to the results of scientific and technical literature analysis one can conclude that a large number of factors influence the processes which take place during cooling, as well as the structure and properties after isothermal exposures. Among those factors there are structural and phase transformations features and the completeness of recrystallization processes. The effect of various cooling rates on the structure and properties of isothermally exposed metastable β-titanium VT47 alloy has been studied. It has been revealed that cooling in the selected rate ranges does not exert a significant effect on the Rockwell hardness and microstructure of the VT47 alloy. It has been shown that grains with an increased number of the secondary α-phase precipitates are characteristic for the initial stages of isothermal exposures.

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