Mechanical and Tribological Characteristics of TIG Hardfaced Dispersive Layer by Reinforced with Particles Extruded Aluminium
Journal Title: Tribology in Industry - Year 2017, Vol 39, Issue 1
Abstract
The article presents the results of the implemented technology for generation of hardfaced dispersive layers obtained by additive material containing reinforcing phase of non-metal particles. The wear resistant coatings are deposited on pure aluminium metal matrix by shielded gas metal-arc welding applying tungsten inert gas (TIG) with extruded aluminium wire reinforced by particles as additive material. Wire filler is produced by extrusion of a pack containing metalized and plated by flux micro/nano SiC particles. The metalized particles implanting in the metal matrix and its dispersive hardfacing are realized by solid-state welding under conditions of hot plastic deformation. Tribological characteristics are studied of the hardfaced layers of dispersive reinforced material on pure aluminium metal matrix with and without flux. Hardness profiles of the hardfaced layers are determined by nanoindentation. The surface layers are studied by means of Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX) analysis. Increase by 15-31 % of the wear resistance of the hardfaced layers and 30-40 % of their hardness was found, which is due to the implanted in the layer reinforcing phase of metalized micro/nano SiC particles.
Authors and Affiliations
R. Dimitrova, M. Kandeva, V. Kamburov
Keywords
Related Articles
- EP ID EP228694
- DOI 10.24874/ti.2017.39.01.02
- Views 56
- Downloads 0
Wear Characteristics of Multilayer-Coated Cutting Tools in Milling Wood and Wood-Based Composites
This article presents the characteristic of wear on the clearance face of newly multilayer-coated K10 cutting tools when cutting mersawa wood, fiberboard, particleboard, and glass reinforced concrete (GRC). The K10 cutti...
Epoxy Resin Based Composites, Mechanical and Tribological Properties: A Review
High fuel consumption by automobile and aerospace vehicles built from legacy alloys has been a great challenge to global design and material engineers. This has called for researches into material development for the pro...
The Effect of Fibre Bridging on Mode I Interlaminar Fracture Toughness of Carbon-Aramid/Epoxy Intra-Ply Hybrid Laminates
The present study investigates mode I interlaminar fracture toughness of aramid/epoxy, carbon/epoxy and intra-ply hybrid composites, obtained from carbon and aramid fibres as the reinforcement of an epoxy matrix, maintai...
Effect of Surface Roughness and Temperature on EHL for Parallel Surfaces Subjected to High Acceleration
Frictional wear is one of the most common causes of material failure. One of the most common techniques to overcome this is to lubricate the surfaces in contact using an optimum amount of appropriate lubricant. Same tech...
Experimental Investigation on Friction and Wear Properties of Different Steel Materials
Friction coefficient and wear rate of different steel materials are investigated and compared in this study. In order to do so, a pin on disc apparatus is designed and fabricated. Experiments are carried out when differ...