Effect of Supercritical Bending on the Mechanical & Tribological Properties of Inconel 625 Welded Using the Cold Metal Transfer Method on a 16Mo3 Steel Pipe

The presented work deals with the investigation of mechanical tribological properties on Inconel 625 superalloy, which is welded a 16Mo3 steel pipe. wall thickness basic pipe was 7 mm, while average layer 3.5 mm. coating made by cold metal transfer (CMT) method. A supercritical bending 180° performed material in this way cold. evaluated were hardness, wear resistance, coefficient friction (COF) and change surface roughness for both materials. UMT Tribolab laboratory equipment used to measure COF resistance Ball-on-flat method, G40 pressure ball. entire process took place at an elevated temperature 500 °C. measured results show that materials after are reinforced plastic deformation, leads increase hardness also wear. Superalloy shows approximately seven times higher rate compared due creation local oxidation areas support formation abrasive do not create solid lubricant, as case 16Mo3. Strain hardening reduction possible superalloy well steel. In process, places structure showed greatest non-deformed structure.