Structure and mechanism of formation of dissimilar welded joints in nuclear power plant made of austenitic and pearlitic steels

Abstract

The structure and mechanism of the formation of welded joints in pearlitic and austenitic steels in power engineering structures are analyzed. The results of investigations of the crystal structure of metals and metallurgical processes taking place in the welding zone are presented. Recommendations are given for improving the welding technology and welding materials, and the chemical composition of the materials used in these applications is determined more accurately.

Keywords:

• Heterogeneous welded joints
• metall crystallization
• crystal lattice
• pearlitic and austenitic steels
• power-engineering production

Notes

Selected from Svarochnoe Proizvodstvo, 2015, 68 (12) 3–9.