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12Kh18N10T (foreign counterpart AISI 321) and 20Kh13 (foreign counterpart AISI 420) steel plates were welded using a conventional VDU-506 electronic arc welder and a Handy TIG 180 AC/DC Control Pro inverter. We determined regression equations describing the content correlation of chromium, nickel and manganese in the weld metal with the value of the heat input of the heat source. The type of the heat source has almost no influence on the extent of alloying elements transition into the weld metal (within the measurement accuracy) apart from using CL-9 electrodes.

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Creation of innovative products and technological breakthrough – phrases most often used in relation to objects located in the nanoscale area. Carbon nanomaterials (CNMs) of various morphologies and structures, which include nanotubes, graphene, nanoporous carbon, are one of the most studied materials of the nanotechnology industry at present. This is due primarily to the fact that their physico-mechanical and physico-chemical characteristics have a direct effect on the final product. At the same time, for a number of applications, the best performance is achieved at the highest possible values of specific surface parameters and porosity. Methods and an experimental technology for producing micro- and mesoporous carbon material have been developed. Depending on the feedstock and technological synthesis modes, a nanoporous carbon material is obtained with a predominance of micro- or mesopores, with a BET specific surface area in the range of 2000–4000 m2/g. The technology includes carbonization of the starting materials and subsequent chemical activation. The obtained activated carbon material can be used as sorbents for gaseous media, both in purification systems and as gas batteries for safe storage and transportation systems, as well as for solving a number of environmental problems.