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A. Zavdoveev,P. Zok,V. Pozniakov,M. Rogante,T. Baudin,M. Heaton,A. Gaivoronskiy,S. Zhdanov,P. Acquier,T. Solomijchuk,V. Kostin1,M. Skoryk,I. Klochkov,S. Motrunich 대한금속ᆞ재료학회 2023 METALS AND MATERIALS International Vol.29 No.2
Thermomechanically cold processed (TMCP) steels with a high level of strength are actively used in various constructions. The high strength of the TMCP steels is acquired due to the formation of the fine-grained structure. Such steels have relativelylow carbon percentage. These greatly simplify the solution of the problem of improving the quality and reliability of metalstructures. At the same time this raises new questions in terms of the technology for welding such steels. In the first instance,it is conditioned by the complex behavior of the TMCP structure under the welding thermal cycle effect. The most importantproperty of the welded joint is yield stress (YS) which characterizes the workability of the whole joint. The estimation ofthe YS while developing the welding technology is a valuable task for design. This current research has made a complexinvestigation of the modern welding technique's effect on the behavior of the yield stress formation in TMCP steel weldedjoints. For progressive technology development, pulse arc welding was used.
Effect of Pulse Current GMAW on the Yield Stress of the S460M TMCP Steel Welded Joints
A. Zavdoveev,P. Zok,V. Pozniakov,M. Rogante,T. Baudin,M. Heaton,A. Gaivoronskiy,S. Zhdanov,P. Acquier,T. Solomijchuk,V. Kostin,M. Skoryk,I. Klochkov,S. Motrunich 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.3
Thermomechanically cold processed (TMCP) steels with a high level of strength are actively used in various constructions. The high strength of the TMCP steels is acquired due to the formation of the fine-grained structure. Such steels have relativelylow carbon percentage. These greatly simplify the solution of the problem of improving the quality and reliability of metalstructures. At the same time this raises new questions in terms of the technology for welding such steels. In the first instance,it is conditioned by the complex behavior of the TMCP structure under the welding thermal cycle effect. The most importantproperty of the welded joint is yield stress (YS) which characterizes the workability of the whole joint. The estimation ofthe YS while developing the welding technology is a valuable task for design. This current research has made a complexinvestigation of the modern welding technique's effect on the behavior of the yield stress formation in TMCP steel weldedjoints. For progressive technology development, pulse arc welding was used.
Computer modeling of a multi-run growth technique for sapphire ribbons
A.V.Borodin,V.A.Borodin,A.V.Zhdanov,I.S.Petkov 한양대학교 세라믹연구소 2003 Journal of Ceramic Processing Research Vol.4 No.2
Multi-run growth is most commonly applied to provide a high yield of shaped crystals. The presence of several crystals in a melting zone and a radiative heat exchange between them pose difficulties in the optimization of the heat zone design and growth conditions. The trial-and-error experiments can hardly be applied because of high cost in terms of materials and time. Moreover, the presence of many parameters under consideration and their interaction make a tentative search a very arduous task. In this paper, the multi-run growth process for sapphire ribbons is studied on the basis of mathematical modeling and the optimized relationships are found.
PYF: Predictions of Fragment Mass Yields for Transmutation of Minor Actinides
D. M. Gorodisskiy,K. V. Kovalchuk,,S. I. Mulgin,A. Ya Rusanov,S. V. Zhdanov 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
A new code PYF for calculating relative mass yields of primary and finalfragments from 5 - 200 MeV proton and neutron induced fission of target nucleiTh-Bk is proposed. The calculation algorithm is based on the effects ofisotopic quasi-invariance of fragment charge distributions from asymmetricfission of actinide nuclei at excitation energies above 12 MeV. Predictionsof the PYF have been successfully compared to a wide set of experimentaldata. The predictive power of the PYF shows that it can be used as a basisfor calculating the neutron-induced fission product yields in the interestsof the transmutation of minor actinides in the Accelerator-Driven Systemsand for other practical applications.