Comparative Analysis of Weld Microstructure in Ti-6Al-4V Samples Produced by Rolling and Wire-Feed Electron Beam Additive Manufacturing
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Published:2023-12
Issue:6
Volume:26
Page:643-655
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ISSN:1029-9599
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Container-title:Physical Mesomechanics
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language:en
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Short-container-title:Phys Mesomech
Author:
Panin A. V.,Kazachenok M. S.,Krukovsky K. V.,Kazantseva L. A.,Martynov S. A.
Abstract
Abstract
The microstructure and phase composition of electron beam welded Ti-6Al-4V titanium alloy were studied by optical and scanning electron microscopy, backscattered electron diffraction, and X-ray diffraction analysis. Deep-penetration electron beam welds were made in a single pass on rectangular Ti-6Al-4V samples obtained by rolling and wire-feed electron beam additive manufacturing. It was found that the weld width in the 3D printed Ti-6Al-4V samples is greater than in the rolled material. The influence of the vapor capillary on the size, shape and structure of primary β grains formed in the fusion zone was shown. The variation of the penetration coefficient, volume fraction of the residual β phase, and residual stresses along the weld length was studied for Ti-6Al-4V samples obtained by both rolling and 3D printing.
Publisher
Pleiades Publishing Ltd
Subject
Surfaces and Interfaces,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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