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Information × Registration Number 0226U003137, (0123U101834) , R & D reports Title Management of structure formation in SLM-printed biomedical alloys during crystallization, thermal and thermal deformation treatments to improve their physicochemical properties popup.stage_title Керування структуроутворенням в SLM-друкованих біомедичних сплавах при кристалізації, термічній та термодеформаційній обробках для підвищення їх фізико-хімічних властивостей Head Yefremenko Vasyl H., Доктор технічних наук Registration Date 18-03-2026 Organization State Higher Educational Institution "Azov State Technical University" popup.description1 Establishing the features of structure formation in additively manufactured (SLM) biomedical alloys (stainless steels, Co-Cr alloys, titanium alloys) using thermal and thermo-deformation effects with an increase in the complex of their physico-chemical properties through the processes of homogenization, plastic compaction and nanostructuring of the crystalline structure. popup.description2 The object of the study is the processes of microstructure and property formation in SLM-printed biomedical steels and titanium- and cobalt-based alloys. The aim of the work is to establish the patterns of structure and property formation in SLM-manufactured biomedical alloys (316L, Co-28Cr-6Mo, Ti-6Al-4V) under thermal, deformation, and combined treatments, as well as to develop a concept for controlling their physicochemical characteristics by improving structural and chemical homogeneity. Research methods included optical and electron microscopy, energy-dispersive spectroscopy, microhardness measurements, X-ray diffraction analysis, tribological testing, and tensile and impact toughness tests at room and sub-zero temperatures. Samples of 316L, Co-28Cr-6Mo, and Ti-6Al-4V alloys were fabricated via SLM and investigated. It was established that their set of properties is comparable to traditional counterparts. The effects of thermal, deformation, and combined post-processing on their microstructure were studied. It was found that recrystallization annealing stabilizes the structure but may reduce corrosion resistance due to oxide precipitation. The effectiveness of pulsed-plasma, laser, and ultrasonic treatments for surface densification and structural gradient formation was proven. In particular, combining carburization with laser melting significantly improves the tribological properties of the Ti-6Al-4V alloy. Hydrogen embrittlement of 316L steel via the HELP mechanism was investigated. It was determined that a combination of ultrasonic modification and annealing minimizes hydrogen absorption by reducing structural defects. Product Description popup.authors Bohdan V. Yefremenko Mykhailo M. Brykov Oliinyk Inna M. Yuliia H. Chabak Denys I. Lentsov Olena V. Tsvetkova Viktor L. Hreshta Volodymyr V. Kulyk Ivan O. Petryshynets Oleksandr I. Usenko Mariia I. Volynets Oryna M. Akimova popup.nrat_date 2026-03-18 Close