As it is known, polyethylene (PE) is one of the common materials in the modern world, and PE products take the major share on industrial and trade markets. For example, various types of technical PE like PE-63, PE-80, and PE-100 have wide industrial applications, i.e., in construction, for pipeline systems etc. A rapid development of plastics industry outstrips detailed investigation of welding...

This aims of this study to determine the effect multilayer welding on ASTM A106 type carbon steel pipe material characteristics microstructure, hardness and maximum tensile strength material. is used as a raw for using Shielded Metal Arc Welding (SMAW) method. joints carried out in three layers (multilayer welding), namely root pass, hot capping layers. There are two variations specimens study,...

This article describes the oxidation resistance of laser beam welds made from E110 zirconium alloy with a chromium coating obtained using multi-cathode magnetron sputtering. Oxidation tests welded Zr without and Cr were performed in an air atmosphere at 1100 °C for 2–90 min. Then, analysis their cross-section microstructure different regions (weld, heat-affected, bulk zones) was done optical mi...

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 ...

Gas tungsten arc welding is a popular process in those applications requiring a high degree of quality and accuracy. However, this process has a big disadvantage against the substantially high productivity welding procedures. Hence, many efforts have been made to improve its productivity. One of these efforts is the use of activating flux (A-TIG welding). In this study, the performance of A-TIG...