STUDY OF PIPE BEND METAL PREPARED BY ELECTROSLAG MELTING OF STEEL 15KH1M1F-SH AND INTENDED FOR THERMAL POWER PLANT STEAM LINES

摘要

Results are provided for comprehensive research conducted in PJSC VTI on large diameter pipe bends prepared by electroslag melting (ESM) of steel 15Kh1M1F-Sh intended for thermal power plant steam lines. Material from various bending zones is studied in order to evaluate the effect of bending on the quality of electroslag metal: a straight section, stretched, and compressed areas. Analysis of research results with the assessment of pipe bend operating life characteristics is conducted.