In this study, four protective coating materials: Inconel 718, 625, Alloy 33 and Stellite 6 were deposited on 16Mo3 steel tubes by means of CMT (Cold Metal Transfer), as an advanced version MAG (Metal Active Gas) welding method. the next step, surface was remelted TIG (Tungsten Inert SEM microstructure coatings–substrate has been reported, EDX-researched chemical composition coatings compared t...

During the welding of 690 nickel-based alloy, solidification cracking (SFC) and ductility-dip (DDC) easily forms, which has a negative effect on quality welded joints service life. The present study examined effects heat input cladding layers SFC DDC, as well their formation mechanism. microstructure observation, elemental distribution, Varestraint test were carried out. results show that DDC f...

In this work, authors had made computer FEM (finite element method) simulation of machining holes in part heat-resistant alloy Inconel 718. For nonlinear solver LS – Dyna been used. Material type for physical modeling workpiece have selected to Johnson Cook formulation. Tool configuration is rigid and dynamic stiffness three dimensions the fastening points. Graphs cutting forces moments differe...

This article deals with nanoindentation analysis of welded overlay layer Inconel 625 alloy on 16Mo3 steel and their interface (transition zone). The microstructure weld metal is analyzed, as well the weld-on subsequently properties (nanohardnes, reduced modulus elastic-ity) selected structural components. realized a tube made steel, which bent by so-called critical bending (d≤0,7D). also ...

Abstract. This presentation shows that superplasticity is achieved in hard-to-deform materials when they are processed by severe plastic deformation (SPD) through high-pressure sliding (HPS). The HPS process similar to the torsion (HPT) as straining made under high pressure highly constrained conditions. It applicable a sheet form of samples while HPT uses disks or rings, and thus it has advant...

The dynamic tensile spall failure of additively manufactured (AM) two-layered bimetallic GRCop-84—Inconel® 625 alloys, with planar and slanted interfaces, is investigated using uniaxial-strain plate-impact gas-gun experiments. Multiple photon Doppler velocimetry (PDV) used to monitor the back (free) surface velocity profiles determine influence interface geometry on failure. Micrographs cross s...