Effect of Electron-Beam Treatment on the Structure of Commercial-Purity Titanium Subjected to Fatigue Failure
Abstract
The fracture surface, the phase composition and the state of the defect substructure of the titanium VT1-0 alloy subjected to preliminary irradiation by a high intensity pulsed electron beam and failed under fatigue loading conditions have been studied. A surface layer with a nanocrystalline multiphase structure is shown to form during fatigue tests of the samples preliminarily annealed in air. The surface layer structure of the samples after irradiation is found to differ substantially from the structure of the unirradiated samples: a 5-μm-thick surface layer, in which the grain volumes have a subgrain structure, forms.
- Publication:
-
Russian Metallurgy
- Pub Date:
- May 2020
- DOI:
- 10.1134/S0036029520040138
- Bibcode:
- 2020RuMet2020..401K