In this article has carried out X-ray phase analysis of the samples obtained using direct laser deposition. Two groups of samples were studied: the first one was obtained with oscillation of laser radiation, the second one – without. The investigations have shown that in the process of direct laser deposition, the α+β phase is formed from a Ti-6Al-4V titanium alloy with oscillation of laser radiation.
Here is considered local melting events realizable under nonequlibrium thermodynamic conditions and phase-structural transformations of materials produced by additive technology using steel powders of different chemical composition. The mechanism of formation of nano- and micro-particlesis, which are crystallization nucleus and hardening units is illustrated here. The formation of such particles occurs due to condensation mechanism in the sequence: steam – cluster – quasinanoparticle. The quality of obtained material is defined by the degree and quality of this process.
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