Keyword: «crystallization»

The material presented in this article is part of research aimed at finding ways to improve the efficiency of assembly and repair technologies for critical structures operating in the low climatic temperatures of the North. The developed direction is presented as a discussion of research results obtained through the comprehensive application of advanced methods for controlling their strength and operational characteristics. An important component of the proposed article is the fundamentally new results obtained by leveraging the capabilities of adaptive pulse control methods for heat and mass transfer characteristics. This is achieved through full control over the system «power source – arc – weld pool – workpiece» under various disturbing influences. The article also presents research results on a new generation of domestically produced welding and surfacing electrodes. The concept presented in the article does not cover all the numerous examples aimed at ensuring the operational reliability of northern structures, but it illustrates one of the few effective options for a comprehensive approach to achieving the set goals.