Alloying of Surface Layers of the Fuel Claddings from Sponge Based E110 Alloy to Increase High Temperature Oxidation Resistance

The results of experiments of parts of cladding tubes from sponge based zirconium E110 alloy near-surface layers doping by means of ion-plasma technologies are presented in this paper. Alloying of material by method of pre-deposited Fe, Y, Mo, Al, Mg, Cr films ion mixing is performed on installation ILUR-03 by means of radialAr+ion beam 3-4 keV average energy. State of modified material layer and oxides, grown on the modified samples in argon-water steam mixture at 1200 ∘C studied by scanning electron and ion microscopy methods, X-ray analysis and secondary ion mass spectroscopy. It is shown that treating modes defined contribute to the barrier for oxygen penetration and material oxidation formation near ion-doped surface

Modification of the cylindrical products outer surface influenced by radial beam of argon ions at automatic mode

Obtaining surface with high purity and good roughness is important for increasing the corrosion resistance and wear resistance of products working in corrosion-active environment. Installation ILUR-03 with the coaxial ion beam wide energy spectrum source for cleaning, polishing and surface doping of long cylindrical items has been developed. Upgraded installation ILUR-03 provides effective technological defects cleaning (abrasives after mechanical polishing, acid residues after chemical etching, adsorbed gases), surface polishing, film deposition by using magnetrons and surface doping by ion mixing method in one technological cycle

Analysis of work and efficiency increase of of the ILUR-03 installation magnetron system for tubular specimens outer surface modification

The method of material near-surface layers doping by mixing of alloying elements films with ion beam is widely used in science and technology. Three magnetrons with independent power systems, integrated in installation for ion-beam treatment of long-range products ILUR-03, were used as deposition systems. Targets for magnetrons were in the form of disks 60 mm diameter and 5 mm thickness and consisted of the following elements: Al, Fe, Mo, Zr, Cr of purity better than 99.99 at.%. Deposition was performed in argon atmosphere at 1-5 Pa pressure and room temperature in stable current mode at 30-100 mA. Analysis of the obtained films on the surface of cylindrical specimens from zirconium alloys with the outer diameter of 9.15 mm showed high uniformity of coating on length of 300 mm, good adhesion and absence of discontinuities in the films body