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Kalinin G.Y.,Central Research Institute of Industrial Materials Prometey | Malyshevsky V.A.,Central Research Institute of Industrial Materials Prometey | Teplenicheva A.S.,Central Research Institute of Industrial Materials Prometey | Fomina O.V.,Central Research Institute of Industrial Materials Prometey | And 2 more authors.
Inorganic Materials: Applied Research | Year: 2015

The paper depicts long-term research resulting in creation of high-nitrogen austenitic steels for shipbuilding. It shows the influence of the chemical composition and technology on the crystal lattice and steel structure, mechanical and corrosion properties, weldability, and other characteristics. The paper studies the fine structure of nitrogen austenitic steels and shows the important role of nitrogen, which impacts the strength and corrosion resistance more effectively than carbon while maintaining a high level of plastic properties and resistance to cyclic and dynamic loading. Magnetic and vibrodamping characteristics are evaluated. High-strength nitrogen austenitic steel with the yield strength of 650 MPa has been successfully adopted by the domestic industry. Its implementation for heavy duty structures is in the final stage. A prognostic evaluation for further development of nitrogen austenitic steels for various industries is given. © 2015, Pleiades Publishing, Ltd.

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