Analysis of bimetal pipe bends with a bend of 0.7D with a cladding layer of Inconel 625

Abstract

Bimetal pipes are highly stressed composite components that must resist corrosion in a chemically aggressive environment. The production of pipe bends with a supercritical bend of 0.7D, which form the part of serpentine systems, is very complex and technologically demanding, because very often undesired cracks occur. To increase the service life of these serpentine systems, the use of a 16Mo3 base steel pipe with a cladding layer of Inconel 625 material was proposed for their production in order to significantly increase their corrosion resistance. For this reason, an extensive analysis of the production of pipe bends with a supercritical bend of 0.7D from bimetal pipes with Inconel 625 cladding was performed, which addressed not only the bend but also the mechanical properties of the pipe with Inconel 625 cladding. It was found out that the production of the pipe bend with a bend of 0.7D of a bimetal pipe is feasible completely without defects with perfectly satisfactory mechanical properties.

Analysis of the technological process of welding a membrane wall with Inconel 625 nickel alloy

“…The Inconel 625 laser wire cladding technology for corrosion protection was optimized in their work by the team of authors Hu et al [37] while the study of the substrate material on which Inconel is plated with the help of selected technological methods was investigated by the author Sotoodeh [32]. On the basis of the analysis of the literature sources carried out by the authors who have dealt with the issue in their studies, it can be said that the collective of authors of this, as well as their previous articles [11,25], which is followed by the acoustic study of the authors obtains a comprehensive overview of problematics and in their experiments presented in this research brings new results that will expand not only theoretical, but also practical knowledge and possibilities of CMT method of welding Inconel material on the base material 16Mo3, which brings new possibilities in the production of bimetallic pipes.…”