Petro Loboda, Constantine Zvorykin
In this article, structural features of Ti-TiB and (α+β) Ti alloys in the initial state, in the weld and in the heat-affected zone of electron beam welds were investigated. The influences of welding parameters, such as influence of the electron beam velocity, preheating of the welded alloys and the subsequent annealing of the welded joint on its microstructure, and the mechanical strength and ductility of the critical elements of the joint were studied by scanning electron microscopy using microprobe Auger spectral and X-ray diffraction analysis and tensile tests. It has been shown that the conditions for rapid crystallization of the material from the melt of the weld contribute to refining of reinforcing fibers of TiB and its hardening in comparison with the starting material Ti-TiB. Besides that, influences of the preferential orientation of TiB reinforcing microfibers (along and across the welded butt joint) on the mechanical properties of the welded joint were investigated by tensile testing. Using the methods of fractographic analysis, the effect of the boron-containing phase on the fracture character of Ti-TiB welded joints was established. It was shown that, along with the strengthening effect, TiB fibers cause embrittlement of the material.
@article{e733210d-2878-49f3-9e33-f446f231dd40,
title={Production and Properties of Electron-Beam-Welded Joints on Ti-TiB Titanium Alloys},
author={Petro Loboda and Constantine Zvorykin},
year={2020},
language={English}
}TY - JOUR TI - Production and Properties of Electron-Beam-Welded Joints on Ti-TiB Titanium Alloys AU - Petro Loboda AU - Constantine Zvorykin PY - 2020 LA - English ER -
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