Nuclear power plants, working in extremely harsh environment, primarily in the form of high-
speed fluid flow, circulate through complex systems. Serious tribological problems can occur …

Fuel rods are the most important safety barrier in pressurized water reactors (PWR) and
operates at high temperature, high pressure, high speed, and strong irradiation water …

This paper presents a comprehensive evaluation of spacer grid of nuclear fuel assembly
(FA). The spacer grids (SG) that support fuel rods are in square lattice and the structural …

Abstract Zircaloy-4 to Zircaloy-4 (Zr-4) similar butt joints were prepared using Electron Beam
Welding (EBW) technique under different weld conditions such as with beam oscillation …

A pulsed laser spot welding technology has been developed for joining intersection points of
0.457 mm-thick Zircaloy-4 straps. Weld beads size, mechanical properties and …

Zircaloy-4 is a widely used material in nuclear industries due to its excellent corrosion
resistance at elevated temperatures, low neutron absorption cross section and balanced …

Pulsed laser spot welding was developed for the fabrication of Zircaloy spacer grid
assembly in pressurized light water reactors. The effects of laser welding parameters on the …

This paper compares and discusses the methods for evaluation of the structural integrity of
the mid spacer grid of nuclear fuel assembly via a finite element analysis of 3D shell …

Mechanical properties in a weld zone are different from those in the base material because
of different microstructures. A spacer grid in PWR fuel is a structural component with an …

The mechanical properties in a weld zone are different from those in the base material
owing to their different microstructures. A process heat exchanger in a nuclear hydrogen …