Abstract
Structure formation in the surface layer of steel 20 during the laser welding of steel H13 (analog #4Kh5MF1S#), which was performed using a LENS 850-R installation with a laser having power of 1 kW by several standard schemes, is investigated. The influence of welding technology on the formation of a nonuniform structure and hardness by the welding layers is investigated. Metallographic, spectral, and X-ray structural analyses are performed. A considerable variation in the chemical composition of layers compared with the chemical composition of the initial steel H13 is shown. Welding heating at 650 and 750°C leads to the structure leveling and the hardness lowering. The factors affecting the complex character of structure formation and, correspondingly, variations in microhardness for all types of welding are revealed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
